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Radio Waves

A Wireless @ Virginia Tech and Broadband Wireless Access and Applications Center (BWAC) Publication

 
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Welcome to our 2016 Symposium edition of Radio Waves, a joint newsletter published quarterly by Wireless @ Virginia Tech, and the BWAC Virginia Tech site!
 

We have posted the agenda, complete with keynote speakers, biographies and tutorial information on the Agenda Page.

Registration is now open at http://www.cpe.vt.edu/reg/wireless/.

 

What's New This Year?

This year we are going green! We will not be printing programs or handing out CD's with the conference proceedings. Instead we will be including that information on a password protected webpage on the Wireless @ Virginia Tech website. The web page will be activated on June 1, 2016 and will include the poster abstract book. The conference proceedings/tutorial presentations will be uploaded after the symposium and will be available until June 30. Access to the conference proceedings/tutorial presentations are available to paid conference participants only. IMPORTANT! The web address and user name/password will be included in your symposium registration confirmation.


Also new this year -


Panel Session, Wednesday, June 1:

Title: Do we really need 5G by 2020?

Abstract: With first rollouts expected by 2020, the next generation of cellular networks (termed "5G") is on the horizon. In addition to handling ever-increasing mobile data traffic, 5G is expected to cater to new use-cases, such as enabling massive access management for the Internet of Things. 5G is usually differentiated from 4G in terms of these new use-cases, some of which are merely predictions that may not live up their initial hype. For instance, it is not clear that we will have 50 billion IoT devices by 2020 as initially predicted. In order to take an objective view of these trends, this panel will bring together world-renowned wireless experts from industry and academia. The discussions will focus on the need for 5G, realism of the tentative timeline (first roll by 2020), components of 5G, and key differences from 4G. In addition to the 5G proponents, the panel will also include LTE experts who will discus the current state of the LTE deployments and its realistic shortcomings that will be addressed by 5G.

Panel Moderator: Dr. Jeff Reed, Virginia Tech

Panelists: Dr. Alan Gatherer (CTO, Huawei), Ivan Seskar (Rutgers University), Dr. Phil Fleming, Nokia. Additional panelist to be announced.

Wednesday Night Welcome Reception, June 1:

The Wednesday night reception will be held this year in the Old Dominion Ballroom in Squires Student Center from 5:30 p.m. - 8:00 p.m. along with the Virginia Tech student poster session. Beer and pizza will be served. Please make sure you have your ID since you may be asked to present it. Shuttle service will be provided from The Inn at Virginia Tech to the Squires Student Center and back.

Thursday Night Dinner Party, June 2:

The Thursday night dinner will be held at The German Club this year. Shuttle service will be provided from The Inn at Virginia Tech to The German Club and back. Once again we will have games and music and the awards ceremony for the Spectrum-ShaRC Student Cognitive Radio Design Contest winners.

 
 
 
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Keynote Speaker, Alan Gatherer

Title: Chemical reactions in the organic network: strategic directions for developing chips and systems in next generation cellular

Abstract: In our quest for more and more bandwidth per customer and per unit cube of space, we are starting to break down the basic cellular structure of the wireless network. People talk of the death of cellular due to technologies such as Coordinated Multipoint, massive MIMO and densification. But the implications of this breakdown go well beyond algorithmic changes and fuzzy cell boundaries. The way we construct the network, control the network and optimize the network will see fundamental changes in the next decade.

Bio:

Dr. Gatherer is responsible for R&D efforts in the United States to develop next generation baseband chips and software for 3G and 4G base station modems. His group is presently developing new technologies for baseband SoC in the areas of message passing hardware and middleware, isolation for multimode, interconnect fabric, CPU/DSP clusters and virtualization. Recently they have focused on open systems, SLA enforcement and now 5G requirements. Alan joined Huawei in January 2010.

About Dr. Gatherer

Keynote Speaker, Dr. Theodore "Ted" Rappaport

Title: Millimeter Wave Wireless Communications and 5G: It will work!

Abstract: Since 2011-2012, when pioneering channel measurements by the author first proved to the world that the millimeter wave spectrum could support future mobile wireless access, corporations and governments have invested billions of dollars in the development of 5G wireless systems. This keynote demonstrates the demand drivers and technology innovations that will enable future 5G mobile systems to operate with carrier frequencies and bandwidths that are orders of magnitudes greater than what has ever been used in the 40 year history of the cellular industry. Some key disconnects between the legacy 3GPP standardization process and its existing channel models, and the channel characteristics of millimeter wave frequencies are also presented, with the upshot being that capacity predictions and system analysis can be dramatically erroneous if legacy channel models are used.

Bio:

Theodore (Ted) S. Rappaport is the David Lee/Ernst Weber Professor of Electrical and Computer Engineering at the Polytechnic Institute of New York University (NYU-Poly) and is a professor of computer science at New York University’s Courant Institute of Mathematical Sciences. He is also a professor of radiology at the New York University School of Medicine.

About Dr. Rappaport

 
 
 
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Keynote Speaker, Dr. Phil Fleming
 

Title: Future Directions for Wireless Networks

Abstract: Almost all communication networks will have a wireless link in the next several years driven by an explosion of use cases and radio technologies. In this talk, we will discuss the broad set of requirements that this implies for future networks as well as a view into the innovative solutions being proposed to meet those requirements.

Bio:

Dr. Phil Fleming is Chief Technology Officer of North America at Nokia Networks. He earned his Ph.D. in Mathematics from the University of Michigan, after which he worked for nine years (1982-1991) at Bell Labs as a Distinguished Member of Technical Staff (DMTS). For the next two decades Dr. Fleming led a team of researchers and advanced technologists in designing and developing innovative solutions in packet scheduling and radio receiver/transmitters for WiMAX and LTE as a Fellow of the Technical Staff and Senior Director at Motorola Solutions. In 2011 he joined Nokia Solutions and Networks to be their head of Advanced Radio Technology and Engineering, and later head of Advanced Technology. Currently at CTO, Dr. Fleming looks for opportunities for research and strategic collaborations with telecom technologists in North America and worldwide

About Dr. Fleming

Demo: Ettus Research
 

Demonstration of Ettus Research RFNoC (RF Network on Chip) Technology

Abstract: RFNoC is the core architecture for Ettus Research third generation USRP devices that aims to make FPGA acceleration more easily accessible. Users can create modular, FPGA accelerated SDR applications by chaining blocks into a flow graph in a fashion similar to many GPP SDR suites. One such suite, GNU Radio, fully supports RFNoC. Users can create flow graphs containing both GNU Radio blocks and RFNoC blocks that seamlessly communicate. Parameters, such as FFT size and FIR filter coefficients, can be easily set from within the driving application without having to develop much application-side code.

In this demo, we will showcase basic RFNoC usage, and give some overview of how it works both on the user side and under the hood. We will show some applications, highlighting RFNoC's capabilities, and also give some basic introduction into how developing with RFNoC works.

About Ettus Research

 

 
 

Tutorials, Wednesday, June 1, 2016

 
 
 
Dr. Buehrer   Dr. Di Renzo   Dr. Bhattacharjea
   

Tutorial 1A:

 

Tutorial 1B:

 

Tutorial 1C:

Localization in Next Generation Wireless Networks

Presented by R. Michael Buehrer, Director, Wireless @ Virginia Tech

Abstract:  Real-time location awareness has become essential for many wireless applications, particularly for 5G, Wi-Fi, and sensor networks. Reliable localization and navigation is a critical component for a diverse set of applications including smart cities, logistics, security tracking, medical services, search and rescue operations, automotive safety, and military systems. The coming years will see the emergence of location awareness in challenging environments with sub-meter accuracy and minimal infrastructure requirements. This tutorial will address the foundations and trends of localization and navigation technologies. Read more

 

On System-Level Analysis & Design of Cellular Networks: The Magic of Stochastic Geometry

Presented by Dr. Marco Di Renzo, Paris-Saclay University

Abstract: This tutorial is aimed to provide a comprehensive crash course on the critical and essential importance of spatial models for an accurate system-level analysis and optimization of emerging 5G ultra-dense and heterogeneous cellular networks. Due to the increased heterogeneity and deployment density, new flexible and scalable approaches for modeling, simulating, analyzing and optimizing cellular networks are needed. Recently, a new approach has been proposed: it is based on the theory of point processes and it leverages tools from stochastic geometry for tractable system-level modeling, performance evaluation and optimization. Read more

 

Open Source SDR on Embedded Platforms

Presented by Dr. Raj Bhattacharjea, Georgia Tech

Abstract: In the past ten years, low-power, embedded computers that are capable of running a Linux-based operating system, known as single board computers (SBCs), have become increasingly available, capable, and low-cost. They
are quickly becoming the platform of choice for projects that require modest computing capabilities in the do-it-yourself, maker, and hacker communities. Popular news sites targeted toward these communities publish articles like the one entitled “Ringing in 2015 with 40 Linux-friendly hacker SBCs” Read more

 
 

Tutorials, Thursday Morning, June 2, 2016

 
 
Dr. Tom Hou   Andreas Roessler   Dr. McGwier
   

Tutorial 2A:

 

Tutorial 2B:

 

Tutorial 2C:

Recent Developments in Artificial Intelligence Applications of Deep Learning for Signal Processing

Presented by Dr. Robert McGwier, Wireless @ Virginia Tech

Abstract: In this tutorial, we will provide a quick introduction to the artificial intelligence topic known as deep learning. Deep learning is a rapidly moving field with lots of recent developments and recent theoretical work done by Virginia Tech Hume Center faculty. Specifically a new signal processing application using deep learning will be described as well as new applications of the tools of probability to help understand what is happening in deep learning networks. Read more

 

Security Principles for LTE Device-to-Device (D2D) Proximity Services (ProSe)

Presented by Dr. Andreas Roessler, Rohde & Schwarz

Abstract: With Release 12 of its set of technical specifications the 3rd Generation Partnership Project (3GPP) added two features, that were standardized within a work item called “LTE Device-To-Device (D2D) Proximity Services (ProSe)”. These two features target two very different applications. First, there is Direct Discovery, a mechanism to allow two or multiple devices in close proximity to detect each other. This functionality is intended for commercial application, such as advanced social media and advertisement. Second, there is Direct Communication. Direct Communication enables two or more devices to communicate with each other, including group communication, which is important to critical communication applications such as public safety. Read more

 

Throughput Maximization in Wireless Networks Through Cross-layer Design and Optimization

Presented by Dr. Tom Hou, Wireless @ Virginia Tech

Abstract: Modern wireless networks are usually built upon advanced technologies and algorithms at all layers. The performance of such networks depends on the interactions of technologies and algorithms across different layers. This tutorial focuses on how to maximize throughput of wireless networks through cross-layer design and optimization. We show how to develop tractable models at the physical, link, and network layers so that the behavior of each layer and the intricate relationships across different layers can be characterized. More important, we show how such complex cross-layer optimization problems can be solved through some powerful analytical tools from mathematical programming. The optimal solutions of these problems allow the network designer to understand the performance limits of such networks. They also serve as benchmarks for the design of distributed algorithms in the field. A number of case studies will be presented. Read more

         
 
 

Tutorials, Thursday Afternoon, June 2, 2016

 
 
Fred Matos   Raytheon   Dr. MacKenzie
   

Tutorial 3A:

 

Tutorial 3B:

 

Tutorial 3C:

Title: Radio Frequency Spectrum Management and Recent Developments in Broadband Wireless Spectrum

Presented by Fredrick Matos, National Telecommunications and Information Administration, Washington, DC

Abstract: The basics include explanations of key definitions such as allocation, assignment, and allotment. An overview is presented of the relevant legal documents and regulatory agencies, and how they intersect: the International Telecommunication Union (ITU); the Federal Communications Commission (FCC); and the National Telecommunications and Information Administration (NTIA). The Table of Frequency Allocations is presented and explained, emphasizing current broadband wireless spectrum. Spectrum repurposing, changing allocations, and licensing processes including auctions are presented. The Commercial Spectrum Enhancement Act (CSEA), and recent amendments are discussed. Read more

 

Title: Towards 5G: Slicing a 4G LTE Network

Presented by Dr. Abhimanyu Gosain, Raytheon BBN Technologies and Ivan Seskar, Rutgers University

Abstract: This tutorial will begin by introducing the GENI experimental framework and infrastructure layout to attendees. The tutorial will have a strong hands-on experimental component. Attendees will be encouraged to sign up for accounts that allow them to use this testbed even after the tutorial is over. We will then shift to exploring concepts of network slicing in 4G networks using SDN techniques developed in GENI. That will be followed with introduction of deployed LTE core network Evolved Packet Core (EPC) instance that is exposed to experimenters using a well-defined API. The attendees will run sample experiments in different network slices that configure the infrastructure end to end using SDN protocols such as OpenFlow/OVS. Read more

 

Title: Stochastic and Dynamic Resource Allocation in Wireless Networks

Presented by Dr. Allen MacKenzie and Dr. Mohammad J. Abdel-Rahman, Wireless @ Virginia Tech

Abstract: Emerging wireless networks operate using dynamic and uncertain resources that render them susceptible to severe performance degradation. Managing resources in such stochastic networks while ensuring a certain level of network performance is challenging. In this tutorial, we introduce stochastic/robust optimization as a powerful tool to handle resource allocation in such uncertain networks and we briefly discuss various approaches of modeling uncertainty and explaining different feasibility and optimality approaches under uncertainty. Read More

 
 

Tutorials, Friday Morning, June 3, 2016

 
 
Dr. Anderson and Durgin   Dr. Marojevic   Jim Costabile
   

Tutorial 4A:

 

Tutorial 4B:

 

Tutorial 4C:

Propagation Measurements and Modeling:  A Modern Approach for 5G Communications

Presented by Dr. Chris Anderson, US Naval Academy and Dr. Greg Durgin, Georgia Tech

Abstract: This tutorial provides an overview of foundational propagation models, modern “big data” approaches to propagation modeling, narrowband and broadband propagation measurements, and presents applications of these techniques to proposed 3.5 GHz spectrum sharing and mm-Wave 5G communications. The first part of the tutorial will cover the development of “classical” models such as free-space, two-ray, knife-edge diffraction, and log-distance scattering; many of these are deeply embedded in even the most advanced prediction software and a deep understanding of them is vital to interpret prediction results. Read more

 

Wireless Testbeds in Research and Education

Presented by Dr. Vuk Morojevic, Wireless @ Virginia Tech

Abstract: This tutorial will discuss the use of wireless testbeds in research and education. It will provide a survey of some of the existing wireless testbeds and trials with focus on spectrum sharing before presenting Virginia Tech’s testbed infrastructure, its usability and example use cases. The audience will learn about the diverse capabilities of wireless testbeds, experience some of the available hardware and software tools and be involved in discussions on new applications and desired capabilities to support current and emerging needs for advancing research and education. Read more

 

Massive MIMO

Presented by Jim Constabile, Syncopated Engineering

Abstract: This tutorial will present the theory of massive MIMO to include the ability to accurately estimate the channel information, the use of precoding to focus the energy to each user terminal, and signal detection and recovery techniques to enable multi-user reception at the BS.  The benefits and implementation challenges will be explored including a discussion of the effect of pilot signal contamination from adjacent cells on the ability to estimate the channel. Read more 


WIRELESS @ VIRGINIA TECH IN THE NEWS....

Faculty Report:

Papers published by Dr. Louis Beex's students:

S. Bettadapura and A. A. (Louis) Beex, Echo Decomposition Based Time Delay Sensor with Sub-Sample Resolution, IEEE co-sponsored 2016 International Conference on Computing, Networking and Communications (ICNC 2016), Workshop on Computing, Networking and Communications (CNC), pp. 330-334, 15-18 February 2016, Kauai HI.

Pujita Raman and A. A. (Louis) Beex, Using LSF Features for Speaker Verification in Noise, IEEE Global Conference on Signal and Information Processing (GlobalSIP 2015), 14-16 December 2015, Orlando FL.

A. Etman and A. A. (Louis) Beex, American Midland Dialect Identification Using Prosodic Features and SVM, The 15th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT 2015), pp. 516-521, 7-10 December 2015, Abu Dhabi, UAE.

Karim Said and A. A. (Louis) Beex, Per-symbol ICI Mitigation for Low-dimensional Doubly Dispersive Channels Using Pilot Restoration, The 15th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT 2015), pp. 460-465, 7-10 December 2015, Abu Dhabi, UAE.

Karim Said and A. A. (Louis) Beex, Per-symbol ICI Cancellation for Frequency Non-selective Time-varying Channels, The 15th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT 2015), pp. 449-453, 7-10 December 2015, Abu Dhabi, UAE.

Asmaa Etman and A. A. (Louis) Beex, American Dialect Identification using Phonotactic and Prosodic Features, IEEE sponsored SAI Intelligent Systems Conference (IntelliSys 2015), pp. 963-970, 10-11 November 2015, London UK.

Asmaa Etman and A. A. (Louis) Beex, Language and Dialect Identification: A survey, IEEE sponsored SAI Intelligent Systems Conference (IntelliSys 2015), pp. 220-231, 10-11 November 2015, London UK.



Dr. Michael Buehrer, Director of Wireless @ Virginia Tech, and Dr. Harpreet Dhillon Co-Chair at GLOBECOM, 2015

Drs. Buehrer and DhillonDr. Michael Buehrer and Dr. Harpreet Dhillon co-chaired a workshop on geolocation at the recent IEEE GLOBECOM 2015 Workshop on Localization for Indoor, Outdoors, and Emerging Networks (LION) on December 6, 2015. Drs. Buehrer and Dhillon along with Ph.D student Javier Schloemann, also presented a paper as part of that workshop titled "Effect of Collaboration on Localizability in Range-Based Localization Systems".


Dr. Michael Buehrer Delivers Presentation at MILCOM 2015

Dr. Buehrer and Daniel JakubisinDr. Michael Buehrer, Director of Wireless @ Virginia Tech, and doctoral candidate Daniel Jakubisin presented their paper "Approximate Joint MAP Detection of co-channel Signals" at the MILCOM conference October 26-28, 2015 in Tampa, FL. MILCOM is the "premier international conference for military communications that features the leading minds of government, military, industry and academia to further explore and define the benefits that joint-level collaboration bring to current and future communication challenges.



Dr. Thomas Hou Joins Wireless @ Virginia Tech Core Faculty

Tom HouWireless @ Virginia Tech is pleased to welcome Dr. Thomas Hou to its Core Faculty. Thomas Hou is the Bradley Distinguished Professor of Electrical and Computer Engineering at Virginia Tech, Blacksburg, VA. He received his B.E. degree from the City College of New York in 1991, M.S. degree from Columbia University in 1993, and Ph.D. degree from New York University (NYU) Tandon School of Engineering in 1998, all in Electrical Engineering. From 1997 to 2002, he was a Researcher at Fujitsu Laboratories of America, Sunnyvale, CA.



Dr. Harpreet Dhillon Wins IEEE Communications Society’s Heinrich Hertz Award

Dr. Harpreet Dhillon won the IEEE Communications Society’s Heinrich Hertz Award for Best Communications Letter for his paper titled “Downlink Rate Distribution in Heterogeneous Cellular Networks under Generalized Cell Selection” (IEEE Wireless Communications Letters, volume 3, no. 1, pp. 42-45, February 2014).

Dr. Harpreet Dhillon is organizing workshop on Green Networks in WiOpt 2016.

Together with Prof. Kaibin Huang of University of Hong Kong and Prof. Aylin Yener of Penn State University, Dr. Harpreet Dhillon is organizing a workshop on Green Networks in WiOpt 2016. Wireless networks, especially radio access networks, are a major consumer of electricity worldwide, thus contributing significantly to global warming.

First Wireless @ Virginia Tech Fellowship Awarded

Through a contribution from the Virginia Wireless Association, Wireless @ Virginia Tech has established a Merit Fellowship starting Fall 2015. The first recipient of this fellowship is Chiranjib Saha, a Wireless @ VT Ph.D. student advised by Dr. Harpreet Dhillon.



Wireless @ VT Researchers Win Best Paper Award at IEEE WCNC IWSS

Junsung, Mo Kim, Dr. DietrichThe award, presented at the 2nd IEEE WCNC 2016 International Workshop on Smart Spectrum in Doha, Qatar, recognized the following paper: Seungmo Kim, Junsung Choi, and Carl B. Dietrich, “Coexistence between OFDM and Pulsed Radars in The 3.5 GHz Band with Imperfect Sensing,” IEEE WCNC 2016, Doha, Qatar, 3-6 April 2016. Read more

 


SPECTRUM-ShaRC Student Cognitive Radio Design Contest Update

And Then There Were Four...

Wireless @ Virginia Tech is hosting the very first annual Spectrum-ShaRC Student Cognitive Radio Contest which was developed by Dr. Carl Dietrich. This is an international student contest that is sponsored in part by Motorola Solutions, Inc., Ettus Research, and Virginia Tech's Bradley Department of Electrical and Computer Engineering and hosted by Wireless @ Virginia Tech. The students have been competing since October of 2015. The top eight qualifying teams will compete head-to-head in a single-elimination tournament on Wednesday, June 1. Each pair of teams that face each other in the tournament will compete in two consecutive matches, switching sets of nodes between matches to equalize any differences due to radio locations or hardware. The cumulative score of the two matches will determine the final four contestants. If needed, a third match will be held with the set of nodes to be used by each team determined randomly, for example, by coin toss. The head to head match up will eliminate 4 teams, and the final four teams will compete on Thursday, June 2, to determine the first, second, third, and fourth place winners.


SEMI-FINALS: Wednesday, June 1, 2016

The semi finals will start at 1:30 p.m. in the Cascades Room.

FINALS: Thursday, June 2, 2016

The final competition to determine the first, second, third and fourth place winners will begin at 1:30 p.m. in the Cascades Room.

First Place Winner: $5,000 (AND A REALLY BIG TROPHY)!

Second Place: $3,000

Third Place: $1,500

Fourth Place: Ettus Research has donated 5 state of the art software defined radio front ends, (model USRP B200-min - a $3500 value). Four of the radio front ends will be awarded to the top undergraduate team and the fifth unit (a $715 value) will be awarded to the 4th place winner.

Fun Facts: We had 17 teams from 5 different countries, China, Greece, Peru, Spain, and the United States with over 80 students. We have four undergraduate student only teams.

The agenda for the contest is available here.



Allen MacKenzie and Walid Saad have been awarded the lead on a $1.37 million international research project to increase higher performance in wireless networks in large venues.

Allen B. MacKenzie, associate professor of electrical and computer engineering is the principal investigator on this cooperative effort with scientists from Ireland.

Walid Saad, an assistant professor of electrical engineering serves as co-principal investigator. Their research will focus on the design and deployment of wireless networks that operate at millimeter-wave frequencies to support dense, high-capacity networks. Read more...



Dr. Jeffrey Reed Testifies Before Congress on The Importance of R&D in Improving Federal Spectrum Systems

Dr. Jeffrey Reed delivered Congressional testimony to the House Subcommittee on Communications and Technology on October 7, 2015. Dr. Reed's testimony provided keen insight into the current state of research and development in wireless infrastructure and the products that support it in the United States and the economic impact that is derived. "Advances in wireless technologies have brought significant new benefits to national defense, government services, and economic development. For this discussion, I will focus on the benefits to economic development. There are two categories of benefits. The first category comes from the direct development of technologies that constitute the wireless systems. The second category comes from indirect economic benefits that occur from the deployment and use of these systems." said Dr. Reed. You can read the rest of Dr. Reed's testimony here.

Dr. Jeffrey Reed and Dr. Jerry Park Complete the 2nd NSF EARS Workshop Report

The 2nd EARS Workshop final report is now available on the official EARS Workshop website here. You can also find a list of tutorials and panel sessions on the website along with the biographies of the presenters.

Ph.D. student Marc Lichtman has had two papers published by the IEEE. The first paper was published in February in IEEE Security and Privacy titled "A Communications Jamming Taxonomy." The second paper is titled "Antifragile Communications" in the IEE Systems Journal. Congratulations to Marc! Marc's advisor is Dr. Jeffrey Reed.



Dr. Walid Saad named Steven O. Lane Junior Faculty Fellow of Electrical and Computer Engineering

Walid Saad, assistant professor of electrical and computer engineering in the College of Engineering at Virginia Tech, has been named the Steven O. Lane Junior Faculty Fellow of Electrical and Computer Engineering by the Virginia Tech Board of Visitors.

Dr. Walid Saad receives NSF grant to study smart grid consumer behavior

Walid Saad has received an NSF Early-Concept Grant for Exploratory Research to understand the role of consumer behavior in managing energy in the smart grid. Saad will work with researchers from Princeton University and Rutgers University for this project, titled "Foundations of Prosumer-Centric Grid Energy Management". The amount of the award is $100,000. Dr. Saad is the Principal Investigator.



Dr. Yaling Yang Awarded Virginia Tech College of Engineering Faculty Fellow

Dr. Yaling Yang has been awarded the College of Engineering Faculty Fellow's award. This prestigious honor includes a $15,000 monetary award that will support Dr. Yang's research for the next three years. Read more...

Dr. Yaling Yang awarded $950,000 to improve communications on land and at sea

Dr. Yaling Yang, an associate professor of electrical and computer engineering, is the lead investigator for two projects funded by the National Science Foundation (NSF). The first is a $750,000 collaborative research project that seeks to provide privacy and confidentiality in an environment where users share wireless spectrum. The second is a $200,000 project to improve communication for ocean vessels. Read more...

 

Radio Waves

Broadband Wireless Access and Applications Center (BWAC)

 
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BWAC @ Virginia Tech Invites Applications for Post-doc and GRA Positions

Mitigation Methods to Protect the LTE Systems against LTE Control Channel Spoofing.

Broadband Wireless Access & Applications Center (BWAC) invites applications for a post-doctoral research associate position.

--Post-doctoral research associate (one position): Applicants should hold a PhD in Electrical/Computer Engineering, Computer Science, or a closely related field. Applicants should have expertise in one or more of the following areas: security and privacy; dynamic spectrum sharing; cognitive radio networks; IoT; and 5G and other next-generation wireless technologies. Please send your detailed CV as a pdf file to Prof. Jerry Park (jungmin@vt.edu).

-- Graduate research assistant (PhD student; 2 positions): BWAC is looking to hire ​highly motivated PhD students to ​participate in ongoing research projects on ​dynamic spectrum sharing, cognitive radio networks, and wireless security. Please send your detailed CV ​as a pdf file ​to Prof. Jerry Park (jungmin@vt.edu).​

 

Upcoming BWAC Industrial Affiliates Board Meeting

BWAC's Fall 2016 Industrial Affiliates Board Meeting is at The Catholic University of America. Dates are yet to be determined. Please check the BWAC website regularly for updates!

 
 

BWAC In the News:

Jerry Park Elected to Serve on Executive Committee of the National Spectrum Consortium

Jerry Park, professor in the Department of Electrical and Computer Engineering, has been elected to a three-year term serving as an academia representative on the Executive Committee of the National Spectrum Consortium (NSC). The NSC is a non-profit organization formed in 2014, whose mission is to improve collaboration between industry, government, and academia to advance research and development of technologies to better use the electromagnetic spectrum. The Executive Committee is the NSC leadership and governance body authorized to oversee the activities of the Consortium. Read more



Jerry Park Awarded Major NSF Grant To Address Dynamic Exclusion Zones in Radio Spectrum

The Federal Communications Commission is opening up bands of spectrum that were previously restricted to a few priority users, including the military. Virginia Tech College of Engineering professor Jung-Min “Jerry” Park is leading a $730,000 National Science Foundation grant collaboration with William Lehr from the Massachusetts Institute of Technology, to find ways to make this transition as smooth as possible. The FCC’s plans to provide incumbent users with a wide, insulating boundary, often called an exclusion zone, separating them from new users. In this type of environment, incumbent users have first dibs on the spectrum, and the secondary users can access what’s left over. Read more



Papers from Dr. Jerry Park’s Research Group Featured in IEEE Communications Society (ComSoc) Best Readings in Cognitive Radio (CR)

The IEEE Communications Society (ComSoc) has selected two papers from Dr. Jerry Park’s ARIAS (Advanced Research in Information Assurance and Security) research group for inclusion in the ComSoc’s Best Readings in Cognitive Radio (CR) list. The first paper entitled “Defense against primary user emulation attacks in cognitive radio,” written by R. Chen, J. Park and J. H. Reed was originally published in January 2008 in the IEEE Journal on Selected Areas in Communications. This paper systematically shows that “primary user emulation” attacks can result in severe interference and significantly reduce spectrum utilization. To address the problem, the authors propose a transmitter verification scheme that is able to identify whether a signal is being transmitted from primary users or not by using an estimate of the transmitter’s location and the characteristics of the signal itself.

 
 

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