PhD Vice Dean and Associate Professor School of Electrical Engineering and Information Technology
German Jordanian University
Talk: Space Modulation Techniques: Promising Technologies for Future Wireless Systems
Abstract: Past few years witnessed a tremendous growth in the demand for wireless services and huge increase in the number of mobile subscribers. Recent CISCO forecasts reveal that Global mobile data traffic grows 74 percent in 2015, where it reached 3.7 Exabytes per month at the end of 2015 comparing to 2.1 Exabytes per month at the end of 2014. Also and in the same forecasts, it is reported that mobile data traffic has grown 4,000-fold over the past 10 years and almost 400-million-fold over the past 15 years. As such, mobile operators and researchers are trying their best to develop new transmission technologies, protocols and network infrastructure solutions to enhance the achievable throughput and the overall spectral efficiency. A promising solution to achieve the targeted data rate is anticipated through multiple-input multiple-output (MIMO) technology deployment. Spectrum scarcity is the main factor that limits the vision for high speed wireless access. Overcoming this challenge requires innovative ways for spectrum sensing and reuse. MIMO technology promises a linear gain in capacity with the number of antennas. Unfortunately, this linear gain requires high complexity transceivers and suffers from practical imperfections such as, spatial correlation, mutual coupling and others. Space modulation techniques, such as spatial modulation (SM), space shift keying (SSK) and quadrature spatial modulation (QSM), are proposed to alleviate most of these precincts. In such techniques, specific transmit antenna or antennas is activated and the index of the active antenna conveys extra modulation bits to achieve spatial multiplexing gain. Likewise, simple transceiver architecture can be considered and these techniques are shown to be robust to several imperfections as compared to other MIMO techniques. As such, it attracted momentous research interest in the past few years. This seminar provides a comprehensive overview of these techniques, the basic working principle, and the differences among them. The advantages and disadvantages of each technique along with their detailed performance will be discussed. A general framework for analyzing the performance of these techniques over generalized fading channels will be given.
Short bio: Dr. Raed Mesleh is currently the vice dean of the school of electrical engineering and information technology at German Jordanian University in Amman, Jordan. He received his PhD in 2007 from Jacobs University in Bremen, Germany. From 2007 to 2010 he was a postdoctoral fellow at Jacobs University. He was with the Electrical Engineering Department at University of Tabuk in Saudi Arabia from 2010 to 2015. During that period, he holds the position of department chair and the director of research excellence and intellectual property units at the deanship of scientific research. He was a visiting scholar at Boston University, The University of Edinburgh and Herriot–Watt University. His main research interests are in wireless communication and optical wireless communication with particular focus on MIMO techniques, mmWave communication FSO and VLC. He is an inventor and co-inventor of seven patents., for of them are already granted He invented Spatial Modulation technique during his PhD and he is the inventor of Quadrature Spatial Modulation and Trellis Coded Spatial Modulation. He published more than 130 journal and conference papers with an overall citation of 5400. In December 2016, he was awarded the Arab Scientific Creativity award from Arab Thought Foundation and in August 2016 he received the distinguished researcher award from German Jordanian University. He serves as an Associate Editor for IEE Access and a regular reviewer for various IEEE journals and has served as a TPC member for several conferences.
Constantinos B. Papadias
Athens Information Technology (AIT)
Talk: Spectrum Sharing and Interference Handling Techniques for Multi-Antenna Wireless Networks
Abstract: In this talk we will provide an overview of spectrum sharing and interference handling techniques for multi-antenna wireless networks. After reviewing the key regulatory approaches to spectrum sharing (ranging from the licensed / unlicensed paradigm to cognitive radio, to data base – enabled to licensed shared access), we will focus on the role that multi-antenna arrays can play to enable and assist spectrum sharing in various wireless setups. The corresponding tasks range from collaborative sensing to dynamic resource allocation to cooperative communication to policy violation detection and enforcement, for which a number of representative techniques will be presented and discussed. Some recent results that fit the emerging / 5G trends of massive antenna arrays and mmwave frequencies will be also presented, showing the promise of multi-antenna-based spectrum sharing techniques for next generations of wireless networks.
Short bio: Constantinos B. Papadias is the Scientific Director of Athens Information Technology (AIT), in Athens, Greece, where he is also Professor and Head of its Broadband Wireless and Sensor Networks (B-WiSE) Research Group. He is also an Adjunct professor at Aalborg University in Denmark. He received the diploma of electrical engineering from the National Technical University of Athens (NTUA) in 1991 and the doctorate degree in signal processing (highest honors) from the Ecole Nationale Supérieure des Télécommunications (ENST), Paris, France, in 1995. He was a researcher at Institut Eurécom (1992-1995), Stanford University (1995-1997) and Bell Labs (as a member of the technical staff from 1997-2001 and as technical manager from 2001-2006). He was also an adjunct professor at Columbia University (2004-2005) and Carnegie Mellon University (2006-2011). His research interests span several areas of advanced communication systems, with emphasis on wireless, cognitive, green and next-generation networks. He has published over 180 papers, one research monograph, two edited books, eight book chapters, and has received over 7,500 citations for his work. He has also made standards contributions and holds 12 patents. He was a member of the Steering Board of the Wireless World Research Forum (WWRF) from 2002-2006, a member and Industrial Liaison of the IEEE's Signal Processing for Communications Technical Committee from 2003-2008 and a National Representative of Greece to the European Research Council's IDEAS program from 2007-2008. He has served as member of the IEEE Communications Society's Fellow Evaluation and Awards Committees, as well as an Associate Editor for the IEEE Transactions on Signal Processing, the IEEE Transactions on Wireless Communications and the Journal of Communications and Networks. He has participated in several European Commission research grants, including the Horizon2020 project SANSA in the area of satellite-assisted wireless backhauling and several where he acted as technical coordinator, such as HARP in the area of remote radio heads, and ADEL in the area of licensed shared access. His distinctions include the Bell Labs President's Award (2002); a Bell Labs Teamwork Award (2003); the IEEE Signal Processing Society's Young Author Best Paper Award (2003); ESI's "most cited paper of the decade" citation in the area of wireless networks (2006); his recognition as a "Highly Cited Greek Scientist" (2011); and the co-authorship of two papers that earned Best Student Paper Awards at the IEEE International Conference on Bioinformatics and BioEngineering (2013 & 2014). He was a Distinguished Lecturer of the IEEE Communications Society for 2012-2013. Dr. Papadias is a member of the Technical Chamber of Greece and a Fellow of IEEE.