Title :
Nonregenerative MIMO Relaying With Optimal Transmit Antenna Selection
Author :
Peters, Steven W. ; Heath, Robert W., Jr.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX
fDate :
6/30/1905 12:00:00 AM
Abstract :
We derive optimal SNR-based transmit antenna selection rules at the source and relay for the nonregenerative half-duplex MIMO relay channel. While antenna selection is a suboptimal form of beamforming, it has the advantage that the optimization is tractable and can be implemented with only a few bits of feedback from the destination to the source and relay. We compare the bit error rate of optimal antenna selection at both the source and relay to other proposed beamforming techniques and propose methods for performing the necessary limited feedback.
Keywords :
MIMO communication; error statistics; feedback; optimisation; transmitting antennas; wireless channels; bit error rate; feedback; nonregenerative half-duplex MIMO relay channel; optimal SNR-based transmit antenna selection; optimization; Antenna feeds; Antennas and propagation; Array signal processing; Bit error rate; Cooperative systems; Diversity methods; Feedback; MIMO; Relays; Transmitting antennas; Antenna selection; cooperative systems; diversity methods; multiple-input multiple-output (MIMO) systems; relaying;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2008.921466
