Rate Bounds for MIMO Relay Channels
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.
- Publication:
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arXiv e-prints
- Pub Date:
- May 2007
- arXiv:
- arXiv:0705.0564
- Bibcode:
- 2007arXiv0705.0564L
- Keywords:
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- Computer Science - Information Theory
- E-Print:
- 25 pages, 6 figures, submitted to Journal on Communications and Networks in December 2007, revised in April 2008