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Lattice Decoding for Digital Communications: Where Minkowski Meets Shannon

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Minkowski never met Shannon, yet the great minds do meet at lattice decoding—an innovative direction that connects lattice theory and digital communications. The model of a linear multi-input multi-output (MIMO) system apply to a range of important problems in digital communications, including code-division multiple access (CDMA)-based third-generation mobile communications, multi-antenna communications for broadband wireless services, and the linear dispersive intersymbol interference channels. In this talk I shall demonstrate the lattice description of a linear MIMO system and show the use of lattice algorithms to address the challenge of decoding complexity as well as a quantitative understanding of the performance of lattice decoding. I shall also outline the special problems that have to be addressed in the communications context and finally point out some open questions.


Cong Ling is currently a Lecturer in the Electrical and Electronic Engineering Department at Imperial College London. He received the Bachelor and Master degrees in Communications from Nanjing Institute of Communications Engineering, China in 1995 and 1997 respectively, and the Ph.D. degree in Electrical Engineering from Nanyang Technological University, Singapore in 2005. Before joining Imperial College, he had been on the faculties of Nanjing Institute of Communications Engineering and King’s College.

Dr. Ling’s research spans the areas of wireless communications and networks, information theory and signal processing. He is an Associate Editor of IEEE Transactions on Vehicular Technology. He has also served on the program committees of several international conferences including IEEE Information Theory Workshop, Globecom, and ICC .

This talk is part of the Signal Processing and Communications Lab Seminars series.

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