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Optimizing cooperative communications schemes for Simultaneous Wireless Information and Power Transfer (SWIPT) systems: Physical layer aspects

Dr. George Ropokis from Trinity College Dublin, Ireland, will be giving a seminar in the department on the 15 Nov (next Wednesday)
When Nov 15, 2017
from 11:00 AM to 12:05 PM
Where Barlow Room 807, 8th floor, Engineering Roberts Engineering
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In this talk we will discuss the problem of optimal beamforming and power allocation for cooperative communications systems based on energy harvesting/SWIPT techniques. We will focus on systems exploiting full duplex relays in multi-relay scenarios and investigate the extent to which the performance, measured in terms of ergodic rate, can be improved by varying the allocation of the available power to the power transfer and information transfer phases. Following a semi-analytical approach, we will also investigate the level of CSIT required for reaching near-optimal performance for such a system design. Following that, we will investigate the problem of jointly optimal power allocation and beamformer design, exploiting semidefinite relaxation techniques.

Speaker:

Dr Ropokis received the Computer Engineering & Informatics Diploma from the University of Patras, Greece, in 2004 as well as the MSc in Mobile and Satellite Communications from the University of Surrey, UK, in 2005. In 2010 he received his PhD Degree on Wireless Communications, from the University of Patras. After the completion of his studies, Dr Ropokis served as a visiting researcher for two years in EURECOM, France, working on the design of physical layer techniques for cognitive radio systems. Since January 2016, he serves as a Research Fellow at Trinity College Dublin, working on physical layer techniques for communications systems with emphasis on energy harvesting systems and systems based on joint energy and spectrum cooperation.