End-to-End Joint Antenna Selection Strategy and Distributed Compress and Forward Strategy for Relay Channels

Details End-to-End Joint Antenna Selection Strategy and Distributed Compress and Forward Strategy for Relay Channels End-to-End Joint Antenna Selection Strategy and Distributed Compress and Forward Strategy for Relay Channels

2009-05-13

arxiv.org/abs/0905.2098v1

Computer Science

Information Theory

Accepted for publication in the special issue on cooperative communication in the Eurasip Journal on Wireless Communication an

Scientific paper

Multi-hop relay channels use multiple relay stages, each with multiple relay nodes, to facilitate communication between a source and destination. Previously, distributed space-time codes were proposed to maximize the achievable diversity-multiplexing tradeoff, however, they fail to achieve all the points of the optimal diversity-multiplexing tradeoff. In the presence of a low-rate feedback link from the destination to each relay stage and the source, this paper proposes an end-to-end antenna selection (EEAS) strategy as an alternative to distributed space-time codes. The EEAS strategy uses a subset of antennas of each relay stage for transmission of the source signal to the destination with amplify and forwarding at each relay stage. The subsets are chosen such that they maximize the end-to-end mutual information at the destination. The EEAS strategy achieves the corner points of the optimal diversity-multiplexing tradeoff (corresponding to maximum diversity gain and maximum multiplexing gain) and achieves better diversity gain at intermediate values of multiplexing gain, versus the best known distributed space-time coding strategies. A distributed compress and forward (CF) strategy is also proposed to achieve all points of the optimal diversity-multiplexing tradeoff for a two-hop relay channel with multiple relay nodes.

Affiliated with

Also associated with

No associations

Rating

End-to-End Joint Antenna Selection Strategy and Distributed Compress and Forward Strategy for Relay Channels 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 End-to-End Joint Antenna Selection Strategy and Distributed Compress and Forward Strategy for Relay Channels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and End-to-End Joint Antenna Selection Strategy and Distributed Compress and Forward Strategy for Relay Channels will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-129159