Computer Science – Information Theory
Scientific paper
2008-12-17
Computer Science
Information Theory
19 pages, 2 figures, submitted to the IEEE Transactions on Information Theory
Scientific paper
In this work, we investigate the diversity-multiplexing tradeoff (DMT) of the multiple-antenna (MIMO) static half-duplex relay channel. A general expression is derived for the DMT upper bound, which can be achieved by a compress-and-forward protocol at the relay, under certain assumptions. The DMT expression is given as the solution of a minimization problem in general, and an explicit expression is found when the relay channel is symmetric in terms of number of antennas, i.e. the source and the destination have n antennas each, and the relay has m antennas. It is observed that the static half-duplex DMT matches the full-duplex DMT when the relay has a single antenna, and is strictly below the full-duplex DMT when the relay has multiple antennas. Besides, the derivation of the upper bound involves a new asymptotic study of spherical integrals (that is, integrals with respect to the Haar measure on the unitary group U(n)), which is a topic of mathematical interest in itself.
Leveque Olivier
Vignat Christophe
Yuksel Melda
No associations
LandOfFree
Diversity-Multiplexing Tradeoff for the MIMO Static Half-Duplex Relay does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Diversity-Multiplexing Tradeoff for the MIMO Static Half-Duplex Relay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diversity-Multiplexing Tradeoff for the MIMO Static Half-Duplex Relay will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-172369