Future Wireless Communications and the Challenges
L'équipe COM a le plaisir d'accueillir Salama S. Ikki
Assistant Professor à l'université Lakehead au CANADA.
Il donnera un séminiare le 19 Février à 14:00 - Petit Amphi- IMT-Atlantique.
Salama S. Ikki received the B.S. degree from Al-Isra University, Amman, Jordan, in 1996, the M.Sc. degree from The
Arab Academy for Science and Technology and Maritime Transport, Alexandria, Egypt, in 2002, and the Ph.D. degree
from Memorial University, St. Johns, NL, Canada, in 2009, all in electrical engineering. From February 2009 to February
2010, he was a Postdoctoral Researcher at the University of Waterloo, ON, Canada. From February 2010 to December
2012, he was a Research Assistant with INRS, University of Quebec, Montreal, QC, Canada. He is currently an
Assistant Professor of wireless communications with Lakehead University, Thunder Bay, ON, Canada. He is the author
of 100 journal and conference papers and has more than 3200 citations and an H-index of 29. His research interests
include cooperative networks, multiple-input-multiple-output, spatial modulation, and wireless sensor networks. Dr. Ikki
has served as a Technical Program Committee member for various conferences, including IEEE International
Conference on Communications, IEEE Global Communications Conference, IEEE Wireless Communications, and
Networking Conference, IEEE Spring/Fall Vehicular Technology Conference, and IEEE International Symposium on
Personal, Indoor, and Mobile Communications. He currently serves on the Editorial Board of IEEE COMMUNICATIONS
LETTERS and Institution of Engineering and Technology Communications. He received a Best Paper Award for his
paper published in the EURASIP Journal on Advanced Signal Processing. Dr. Ikki also received an IEEE Communications Letters, IEEE Wireless Communications Letters and IEEE Transactions on Vehicular Technology exemplary reviewer certificates for 2012, 2012 and 2014, respectively.
Wireless channels have impairments that limit the quality and the capacity of transmission. The impairments include
signal fading, co-channel interference, adjacent channel interference, noise, signal shadowing and propagation loss.
Faced with ever increasing demand for user services and finite spectrum (bandwidth) resources, new and improved
technologies must be developed to permit future wireless networks to sustain the increasing demands for services.
In this talk we are going to shed lights on three new techniques that can be implemented in the future generation for
wireless communications networks: Cooperative networks, Massive MIMO, Spatial modulation, and Non-Orthogonal
Multiple Access. Moreover, introduction to Location-awareness schemes for the future communication systems will
be presented. Finally, energy harvesting for health applications will be introduced.
Cooperative networks have been recently proposed and are gaining growing interest for future generation wireless
standards. They have promise to improve wireless communication capability and provide a new paradigm for the
development of efficient bandwidth usage, resulting in a significant increase of the capacity and diversity gain in wireless
networks. In cooperative systems, idle users (nodes) are
as relays between the source and the destination.
Massive MIMO is an emerging technology that scales up MIMO by an order of magnitude compared to current state-
of-the-art. We think of systems that use antenna arrays with a few tens (or even hundreds) antennas, that
simultaneously serve many tens of terminals in the same time-frequency resource. The basic premise behind massive
MIMO is to reap all the benefits of conventional MIMO, but in a much greater scale. Overall, massive MIMO is an
enabler for the development of future broadband (fixed and mobile) networks which will be energy-efficient, secure,
and robust, and will use the spectrum efficiently.
Spatial Modulation is an alternative and promising MIMO technique that utilizes the spatial information in a novel
fashion. At each time instance, only a single transmit antenna is activated among the set of existing transmit antennas
and the activated antenna index is implicitly used to convey information. As compared to other MIMO techniques,
spatial modulation is shown to have several advantages among of which are, complete avoidance of inter-channel
interference (ICI), relaxed inter-antenna synchronization requirements, low receiver complexity, use of a single RF
chain at the transmitter, and enhanced error performance with moderate number of transmit antennas.
As the latest member of the multiple access family, non-orthogonal multiple access (NOMA) has been recently
proposed for 3GPP LTE and is envisioned to be an essential component of 5G wireless networks. The main advantage
of NOMA is to serve multiple users at the same time/frequency/code,
but with different power levels, which results a significant spectral efficiency gain over conventional orthogonal multiple access.