Lingjia Liu received the Bachelor of Science (B.S.) degree with the highest honor in Electronic Engineering Department from Shanghai Jiao Tong University, China, and completed his Doctor of Philosophy (Ph.D.) degree in the Electrical and Computer Engineering (ECE) Department from Texas A&M University, USA. Prior to joining the ECE Department at Virginia Tech (VT), he was an Associate Professor in the EECS Department at the University of Kansas (KU). He spent 4+ years working with Mitsubishi Electric Research Lab (MERL) and the Standards & Mobility Innovation Lab of Samsung Research America (SRA). He was a technical leader and a leading 3GPP standard delegate from Samsung on downlink MIMO, Coordinated Multipoint (CoMP) transmission/reception, device-to-device (D2D) communications, and Heterogeneous Network (HetNet).
Lingjia Liu is a senior member of IEEE. He is currently serving as an Editor for the IEEE Trans. on Wireless Commun., an Editor for IEEE Trans. on Commun. and an Associate Editor for the EURASIP J. on Wireless Commun. and Netw. He has been serving as the Technical Program Committee Chair of 6 consecutive IEEE GLOBECOM Workshops on Emerging Technologies for 5G ('12-'17). Currently, he is serving as the Vice-Chair, Americas of the IEEE Technical Committee on Green Communications & Computing (TCGCC).
Lingjia Liu has 100+ papers including 2 book chapters, 40+ journal articles, 5 editorials, and 60+ conference papers. He has numerous technical contributions to the 4G standard including both 3GPP LTE-Advanced and IEEE 802.16m. He has 20+ granted U.S. patents with 20+ pending applications. His work received many recognition in the field including IEEE GLOBECOM 2016 Best Paper Award, Global Samsung Best Paper Award 2010, and Global Samsung Best Paper Award 2008. In 2011, he received the Individual Gold Medal from Samsung and was elected as the 2011 New Faces of Engineering by the National Engineers Week Foundation. In May 2015, he received the Miller Professional Development Award for Distinguished Research at KU, the only winner selected across all tenure-track and tenured faculty across all engineering departments. From 2013 to 2017, he has been continuously selected as U.S. Air Force Office of Scientific Research (AFOSR)/Air Force Research Laboratory (AFRL) summer faculty fellow.
Prof. Jerry Park has been awarded a 2017 Virginia Tech College of Engineering Dean’s Award for Research Excellence. He was recognized for his highly visible research in dynamic spectrum sharing, wireless security and privacy, and related areas.
Prof. Jerry Park has been appointed to serve as a Steering Committee Co-Chair of the IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN). DySPAN is one of the premier conferences sponsored by the IEEE Communications Society, and it serves as a locus for discussing and exploring advanced spectrum access technologies. The Steering Committee is the leadership and governance body authorized to oversee the activities of the Conference.
A team of researchers from Virginia Tech has been awarded a $2,000,000 grant from the Defense Advanced Research Projects Agency (DARPA) to participate in the Spectrum Collaboration Challenge. This grand challenge focuses on developing new techniques for collaboration between radios (using machine-learning) to overcome scarcity in the radio frequency spectrum. In this program, teams from around the world will compete to reimagine a new, more efficient wireless paradigm in which radio networks autonomously collaborate to dynamically determine how the spectrum should be used moment to moment.
The team, led by R. Michael Buehrer, professor of electrical and computer engineering (ECE) and director of Wireless @ Virginia Tech and Robert McGwier, chief scientist at the Hume Center for National Security and Technology, will participate in several rounds of competition through this program, developing unique technologies at each phase. Professors Jeffrey Reed and Jung-Min “Jerry” Park (both professors in ECE and well-known researchers in the area of spectrum sharing) are also part of the Virginia Tech team.
Buehrer noted that “Our team is very excited to be a part of this program. The contest has the potential to completely change the way wireless networks are designed and spectrum is utilized. Just as autonomous vehicles have the potential to fundamentally change the way transportation is done, machine intelligence and collaboration innovations have the potential to change the way communication networks are deployed.” While the radio spectrum itself is finite, the increase of wireless products, such as smart phones, that are using the radio spectrum has increased dramatically in recent years and is projected to continue to increase in the foreseeable future. The ability to manage the radio spectrum efficiently is one of the greatest challenges of our time.
The Virginia Tech team is also sponsored by Lockheed Martin's Advanced Technology Laboratories. The winning team from this multi-year effort could win as much as $3.5M.
Wireless @ Virginia Tech is one of the largest university-based wireless research groups in the United States. The primary mission of Wireless @ Virginia Tech is to develop a research environment that produces high caliber students who will become the future leaders in academia, industry, and government. Wireless @ Virginia Tech continues to take a leadership role in these efforts by conducting research into the opportunities and obstacles in newly emerging wireless technologies. Visit our website at https://wireless.vt.edu for more information.
The Hume Center was founded in 2010 through an endowment from Ted and Karyn Hume. With support from Virginia Tech's College of Engineering and Institute for Critical Technologies and Applied Sciences (ICTAS), the Hume Center leads the university's education and research ecosystem for national security technologies, with an emphasis on the communication and computation challenges of the defense and intelligence communities. Approximately 150 undergraduate students and 50 graduate students participate in Hume Center programs each year, and most receive scholarships, fellowships, or research assistantships and are vectored toward careers working for the federal government or its industrial base. Visit www.hume.vt.edu for more information.
The Bradley Department of Electrical and Computer Engineering and Wireless @ Virginia Tech is pleased to announce that the IEEE Fellow Committee has selected two Wireless @ Virginia Tech faculty members, Dr. Michael Buehrer, Director of Wireless @ Virginia Tech and Dr Jung-Min "Jerry" Park, Associate Director for Affiliate Relations as well as the site director for the Virginia Tech Broadband Wireless Access and Applications (BWAC), for promotion to the level of IEEE Fellow.
The IEEE Grade of Fellow is conferred by the IEEE Board of Directors upon a person with an outstanding record of accomplishments in any of the IEEE fields of interest. The total number selected in any one year cannot exceed one-tenth of one- percent of the total voting membership. IEEE Fellow is the highest grade of membership and is recognized by the technical community as a prestigious honor and an important career achievement.
Jung-Min "Jerry" Park is being recognized for his contributions to dynamic spectrum sharing, cognitive radio networks, and security issues. Dr. Park received his Ph.D. degree in Electrical and Computer Engineering from Purdue University, West Lafayette, IN, USA in 2003. He is currently the Site Director of a National Science Foundation (NSF) Industry-University Cooperative Research Center (I-UCRC) called Broadband Wireless Access & Applications Center (BWAC). Park is also an Executive Committee Member of the National Spectrum Consortium. His research interests include cognitive radio networks, dynamic spectrum sharing, networking, wireless security and privacy, and applied cryptography. Current or recent research sponsors include the NSF, National Institutes of Health (NIH), Defense Advanced Research Projects Agency (DARPA), Army Research Office (ARO), Office of Naval Research (ONR), and several industry sponsors. Park is a recipient of a 2014 Virginia Tech College of Engineering Faculty Fellow Award, a 2008 NSF Faculty Early Career Development (CAREER) Award, a 2008 Hoeber Excellence in Research Award, and a 1998 AT&T Leadership Award. He is currently serving on the editorial boards of the IEEE Transactions on Wireless Communications and the IEEE/KICS Journal of Communications and Networks.
R. Michael Buehrer, Professor and Director of Wireless @ Virginia Tech is being recognized for his contributions to wideband signal processing in communications and geolocation More specifically, his work had a direct impact on Second and Third Generation (2G and 3G) cellular phone systems during a critical time in the development of that technology. During his career (first at Bell Laboratories and later at Virginia Tech) Dr. Buehrer has risen to become a world-class researcher in wireless communications. To date, he has published 300 journal and conference papers, many of which are widely cited. He has over 5700 citations and an h-index of 39. He holds 11 patents in the field of cellular communication networks. Over the past 20 years he has made several fundamental contributions to the understanding and use of wireless communication systems and in particular has advanced the understanding of fundamental aspects of communications and geolocation systems that rely on wideband (e.g., spread spectrum or ultra-wideband) signals. Among his accomplishments are techniques for increasing the capacity of Code Division Multiple Access (CDMA) cellular networks and improving localization performance in sensor networks. He has received numerous awards for his research including multiple best paper awards. He is also an active participant and organizer of IEEE conferences and workshops and has served as an editor for several IEEE journals, including IEEE Transactions on Communications, IEEE Transactions on Wireless Communications, IEEE Communications Letters, and IEEE Transactions on Signal Processing among others. Dr. Buehrer is a faculty member of the BWAC Research Center.
The IEEE is the world’s leading professional association for advancing technology for humanity. Through its 400,000 plus members in 160 countries, the association is a leading authority on a wide variety of areas ranging from aerospace systems, computers and telecommunications to biomedical engineering, electric power and consumer electronics.
Dedicated to the advancement of technology, the IEEE publishes 30 percent of the world’s literature in the electrical and electronics engineering and computer science fields, and has developed more than 1300 active industry standards. The association also sponsors or co-sponsors nearly 1700 international technical conferences each year. If you would like to learn more about IEEE or the IEEE Fellow Program, please visit www.ieee.org.
Registration and hotel information is now available at http://bwac.arizona.edu. Please make your hotel reservations by October 18 to secure the negotiated reduced rate.
Sudeep Bhattarai, a PhD student advised by Professor Jerry Park in the Department of Electrical and Computer Engineering, actively contributed in the design, development and deployment of the first prototype Environmental Sensing Capability (ESC) in San Francisco during his summer research at Google. This deployment is the first step towards enabling shared usage of 150 MHz of the radio spectrum in the 3.5 GHz band, also known as the Citizens Broadband Radio Service (CBRS) band.
The U.S. Federal Communications Commission (FCC) has recently opened the 3.5 GHz band for sharing between the Navy’s shipborne radars (incumbent users) and broadband communication systems (CBRS devices). A fundamental requirement for shared use of this band is that a dedicated network of sensors called ESCs must detect incumbent operations and alert the spectrum manager. The spectrum manager for the CBRS band is called the Spectrum Access System (SAS). SAS maintains orderly use of the band while protecting incumbents and coordinating spectrum use among CBRS devices. Upon receiving an alert from the ESC, the SAS reconfigures CBRS devices under its control to avoid harmful interference to the Navy radar.
Google, among others, has applied to the FCC to operate both a SAS and an ESC, and has been actively developing software and hardware capabilities to detect incumbent radars. The goal is to deploy a network of ESCs along the U.S. coastline and allow CBRS devices to operate in the coastal areas provided that they do not cause harmful interference to the incumbent users.
Wireless@VT research group had a strong performance in the recent round of NSF awards. The following is a list of awards already made by the NSF. You can read more at VT News.
Papers from Dr. Jerry Park’s 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.
The second paper entitled “Toward secure distributed spectrum sensing in cognitive radio networks,” was coauthored by R. Chen, J. Park, Y. T. Hou, and J. H. Reed, and was originally published in April, 2008 in the IEEE Communications Magazine. This paper introduced pioneering work on mitigating security threats such as incumbent emulation and spectrum sensing data falsification threats in cognitive radio networks. The paper also described countermeasures for addressing those threats. The IEEE ComSoc’s Best Readings in Cognitive Radio (CR) list is a recommended reading list of books, articles and papers on Cognitive Radio Communications and Networking that are of interest to the IEEE ComSoc readership. IEEE ComSoc’s Best Readings in Cognitive Radio (CR) list is available here.
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.
Park, of the Bradley Department of Electrical and Computer Engineering, and his collaborators intend to develop a new strategy supporting blueprints for flexible exclusion zones, or an adjustable boundary, that can respond dynamically to the incumbent protection requirements and the interference environment. In this way, incumbent users will still have safe, clear access to their frequencies, but secondary users will be able to make efficient use of the spectrum when it’s free. Read more
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.
New wireless technologies and applications have skyrocketed the demand for spectrum, which is a finite natural resource. The ability to efficiently manage that resource is critical to the national economy and the military’s ability to secure wireless communications. The NSC has signed a $1.25 billion, five-year contract with the Office of the Deputy Assistant Secretary of Defense, Emerging Capabilities and Prototyping Office, to develop a research and development program designed to maximize utilization of the spectrum by broadening the commercial use of available spectrum while protecting the U.S. military’s access to select radio frequencies.
As an Executive Committee member of the NSC, Park will work with the other members of the committee to develop policy to govern the development of research and business opportunities that will meet the Consortium’s goal. Over $500 million dollars will be available to help Consortium members finance and advance the research and development, and transfer the resulting technology to the marketplace.
Jerry Park is the associate director for affiliate relations of Wireless @ Virginia Tech, a research group within the Bradley Department of Electrical and Computer Engineering, dedicated to the development of wireless technology, as well as the site director of the Broadband Wireless Access and Applications Center (BWAC), an NSF-funded Industry-University Cooperative Research Center (I-UCRC) whose primary mission is to advance research collaboration between researchers in academia and industry partners and promote the transfer of technology from universities to the industry. ECE Link
The dates for the spring Industrial Affiliates Board Meeting has been set for March 29 - 30, 2016 at the University of Arizona. Please mark your calendars. Additional details will be posted as they become available.
Jerry Park recently received a Cisco Faculty Research Award. The title of the project is “Anonymity-Preserving Authentication for Large Networks”. Cisco Research Awards are one-year awards structured as unrestricted gifts to universities to support the work of faculty members that are working on innovative solution approaches to challenging problems in networking, programmable networks, and cybersecurity.
In many network applications, we need to be able to authenticate the data while, at the same time, protect the anonymity or privacy of the data source—in other words, anonymity-preserving authentication (APA) is needed. Existing approaches for APA have limited utility in large networks due to their high computational complexity and/or high communication overhead. Park and his team will investigate novel approaches for APA and study the performance and security requirements of a number of important applications which require APA.
The deadline to enter the Spectrum-ShaRC Student Radio Design Contest is next Thursday, October 15. First place prize is $5,000. Second place is $3,000 and third place is $1,500. Entry forms and complete details are available at radiocontest.wireless.vt.edu. Late entries will be docked points!
The next board meeting for the BWAC board of directors is at the University of Mississippi, in Oxford, Mississippi. Also know as Ole Miss, the university is a 75 minute drive from the Memphis International Airport in Tennessee. Complete details including hotel reservation information and agenda are available at the University of Mississippi website here.
Drs. Jeff Reed (PI) and Jerry Park (co-PI) have been awarded a grant by NSF to organize a major workshop on Enhancing Access to the Radio Spectrum (EARS). This EARS Workshop will be held on October 19-20, 2015 in Arlington, VA. At this workshop, an interdisciplinary group of highly-visible academic researchers, relevant federal government officials, and industry stakeholders will gather to discuss technologies and polices that will enable us to unlock the true potential of the spectrum while respecting the needs of incumbent users. This group will create a vision for future spectrum use, identifying the problems to be overcome, the research needed to overcome these problems, and the financial and human capital resources necessary to support this vision.
Wireless @ Virginia Tech faculty member and BWAC Site Director, Dr. Jung-Min “Jerry” Park is a co-PI of a major NSF grant titled "Advanced materials manufacturing, sensing, and wireless controls for intelligent automobile environments" with a total budget of $1.15M. This project will involve research collaboration between Prof. Park, Prof. S. Taheri (PI) and Prof. S. Priya , both faculty members of Virginia Tech’s Department of Mechanical Engineering, and Prof. M.R. Hajj , faculty member of Virginia Tech’s Department of Biomedical Engineering and Mechanics, and Prof. S. Trolier-McKinstry at Penn State Univ. In intelligent vehicles envisioned to be manufactured in the near future, safety-critical components such as tires and seat belts will play critical roles in the development of intelligent controls that can provide information on parameters such as friction, slip, pressure, and driver conditions. The overall goal of the project is to actively monitor those parameters through embedded sensors based upon piezoelectrics (i.e., materials that can generate an alternating current voltage when subjected to mechanical stress or vibration). Park's group will take the lead in the design and implementation of the mechanisms and protocols needed to enable reliable, secure, and efficient wireless transmission of the sensor-collected data.
Dr. Jung-Min “Jerry” Park is the PI of a National Science Foundation (NSF) grant titled "Collaborative research: Dynamic exclusion zones: Balancing incumbent protection and spectrum utilization efficiency" with a total budget of $730,000. This is a collaborative research project between Dr. Park (lead investigator) and Dr. William Lehr at MIT. The primary goal of the project is to develop a framework for implementing mechanisms that can adequately protect incumbent users from harmful interference while ensuring efficient utilization of fallow spectrum by secondary users in a dynamic spectrum sharing environment. The proposed mechanisms take advantage of the network of spectrum databases and spectrum sensing devices that will be deployed to enable spectrum sharing. This research is intended to provide a practical framework that is both technically and economically viable for implementing incentive-compatible dynamic sharing solutions.
BWAC faculty members have received a National Science Foundation grant aimed at preparing the next generation of engineering students to work in the field of wireless communications. Virginia Tech investigators on the two-year $626,000 interdisciplinary project include: Carl Dietrich, principal investigator and research associate professor; Mike Buehrer, professor; and Vuk Marojevic, research associate; all of the Bradley Department of Electrical and Computer Engineering and faculty members of the Virginia Tech BWAC site.. Also on the team are: Nicholas Polys, of the research and cluster computing department; Richard Goff, associate professor of engineering education; and Christian Hearn, who obtained his doctorate at Virginia Tech and is now at Weber State University. Read more here.
The grant is titled “CRISP Type 2: Collaborative Research: Towards Resilient Smart Cities” totaling $2.5M. This is a collaborative research involving faculties from VT (lead institution), Rutgers, and Florida International Univ. VT’s portion of the project is $1.1M and involves faculty from ECE (Saad), Economics (Sheryl Ball), CS (Danfeng Yao), VTTI (Myra Blanco). The goal of the project is to develop an interdisciplinary framework that ties together techniques from networks, operations research, machine learning, power systems, and psychology to develop resilient processes that can control and optimally manage the resources (energy, spectrum, personnel, economic investments) of the critical infrastructure (smart grid, wireless network, transportation network, water network, etc) that form a smart city, in the face of failures and malicious attacks. Read more about it here.
Carl Dietrich, Associate Research Professor in the Bradley Department of Engineering and a member of the Broadband Wireless Access and Applications Center and co-PI Richard Goff (Engineering Education) have been awarded the first year of support for a proposed $628,000 grant entitled "Hands-on Learning for Novel Solutions to Radio Spectrum Problems." Direct Ph.D. student Freddie Romano was also instrumental in developing both the concept and proposal, and Joyce Donathan, Administrative Assistant and web designer for the Virginia Tech BWAC Center, developed and maintains the project web site (http://www.hlsp.wireless.vt.edu) and will assist with dissemination of SDR-based tutorials and other materials to be developed under the grant. The purpose of this grant is to develop tutorials to support and encourage students to pursue careers in Science, Technology, Engineering and Math (STEM), particularly in the field of cognitive and software-defined radio. The tutorials will use Virginia Tech's CORNET cognitive radio testbed (http://www.cornet.wireless.vt.edu) and similar hardware, as well as the Cognitive Radio Test System (CRTS), an open-source framework for testing and evaluating radios and networks in challenging interference environments. The tutorials will be developed with input from various U.S. Navy organizations and initially will be evaluated at Virginia Tech and by a network of academic partners who are also involved in a related NSF IUSE project.
Dr. Walid Saad has received a new $150,000 NSF grant under the auspices of the NIST Global City Teams Challenge. The title of the proposal is, "Fingerprinting for Internet of Things Authentication: Accelerating IoT Research and Education Under the Global City Teams Challenge", with Dr. Sanjay Raman from NCR as co-PI. The goal of the project is to develop data-driven security solutions for the Internet of Things while also engaging high schools in the state of Virginia via a STEM collaboration with the IoT-DC consortium and Arlington County. Read about the Global City NIST Grant here.
Dr. Walid Saad and his student Yaman Sharaf-Dabbagh win best paper award for their paper "Transfer Learning for Device Fingerprinting with Application to Cognitive Radio Networks," in the Proc. of 26th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Hong Kong, September 2015.
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. Plz send your detailed CV as a pdf file to Prof. Jerry Park (firstname.lastname@example.org).
-- 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. Plz send your detailed CV as a pdf file to Prof. Jerry Park (email@example.com).
Dr. Jerry Park, Site Director for the Virginia Tech BWAC site, has been promoted to the rank of Professor by the Virginia Tech Board of Visitors. Dr. Park is the founding director of the ARIAS Lab as well as the Associate Director of Affiliate Relations in the Wireless @ Virginia Tech research group.
Dr. Jerry Park attended the 2015 NSF Secure and Trustworthy Cyberspace (SaTC) program PI meeting which was held in Arlington, VA from Jan 5 to Jan 7. At the meeting, he presented a poster entitled "Enforcement and Security in Dynamic Spectrum Sharing". The National Science Foundation Secure and Trustworthy Cyberspace (SaTC) Principal Investigators' Meeting brings together a broad group of researchers working on security and privacy. SaTC is an interdisciplinary program including technologists, social scientists, and educators from programs sponsored by by the NSF CISE, SBE, EHR, MPS, and ENG directorates. The primary objectives for this meeting is:
1. To stimulate coordination and collaboration amongst SaTC PIs
2. To foster collaborations among SaTC researchers across multiple disciplines
3. To share experiences and learn from others' experiences in transitioning research into practice, and
4. To develop ideas and share methods for improving education, recruitment, and career development in cyber security.
More details are available at https://www.usenix.org/conference/satcpi15