Title :
Rate bounds for MIMO relay channels
Author :
Lo, Caleb K. ; Vishwanath, Sriram ; Heath, Robert W., Jr.
Author_Institution :
Wireless Networking and Communications Group, Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX 78712 USA
fDate :
6/1/2008 12:00:00 AM
Abstract :
This paper considers the multi-input multi-output (MIMO) relay channel where multiple antennas are employed by each terminal. Compared to single-input single-output (SISO) relay channels, MIMO relay channels introduce additional degrees of freedom, making the design and analysis of optimal cooperative strategies more complex. In this paper, a partial cooperation strategy that combines transmit-side message splitting and block-Markov encoding is presented. Lower bounds on capacity that improve on a previously proposed non-cooperative lower bound are derived for Gaussian MIMO relay channels.1
Keywords :
Dirty-paper coding; multi-inputmulti-output (MIMO) systems; relay channels; superposition coding;
Journal_Title :
Communications and Networks, Journal of
DOI :
10.1109/JCN.2008.6389839
