iCore seminar by Dr. Sheng Yang (Centrale Supelec, France)
17 July 2017 (Monday) - from 11:00 to 12:00
Room 1109A, level 11, EEE Dept. @ Imperial College
Sheng Yang received the B.E. degree in electrical engineering from Jiaotong University, Shanghai, China, in 2001, and both the
engineer degree and the M.Sc. degree in electrical engineering from Telecom ParisTech, Paris, France, in 2004, respectively. In 2007, he obtained
his Ph.D. from Université de Pierre et Marie Curie (Paris VI). From October 2007 to November 2008, he was with Motorola Research Center in
Gif-sur-Yvette, France, as a senior staff research engineer. Since December 2008, he has joined Centrale Supelec where he is currently an
associate professor. From April 2015, he also holds an honorary faculty position in the department of electrical and electronic engineering
of the University of Hong Kong (HKU). He received the 2015 IEEE ComSoc Best Young Researcher Award for the Europe, Middle East, and Africa
Region (EMEA). He is an editor of the IEEE transactions on wireless communications.
Seminar Title: "MIMO phase noise channels: From multiplexing gain to detection algorithms"
Abstract: Phase noise is becoming a limiting factor for the next generation wireless communication systems typically at very high frequencies. In this talk, we present the impact of the phase noise on the discrete-time multi-antenna (MIMO) communication systems. In the first part, we present novel upper and lower bounds on the Shannon capacity of such channels. Based on the capacity bounds, we characterise the multiplexing gain of the MIMO phase noise channels. In the second part, we turn our attention to the MIMO receiver architecture when phase noise is present. We propose an accurate approximation of the likelihood function and more importantly an efficient detection algorithm that can achieve near optimal performance in terms of probability of detection error. Our results reveal that near-ML detection of phase noise impaired MIMO channels can be done as efficiently as for conventional MIMO channels without phase noise.