Journal
IEEE SIGNAL PROCESSING LETTERS
Volume 22, Issue 9, Pages 1434-1437Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LSP.2015.2408574
Keywords
Antenna selection; diversity; limited feedback; spatial modulation; switching gain
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Funding
- DST, India
- EPSRC, U. K., under auspices of the India-UK Advanced Technology Center (IU-ATC)
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In this letter, we quantify the transmit diversity order of the SM system operating in a closed-loop scenario. Specifically, the SM system relying on Euclidean distance based antenna subset selection (EDAS) is considered and the achievable diversity gain is evaluated. Furthermore, the resultant trade-off between the achievable diversity gain and switching gain is studied. Simulation results confirm our theoretical results. Specifically, at a symbol error rate of about 10(-4) the signal-to-noise ratio gain achieved by EDAS is about 7 dB in case of 16-QAM and about 5 dB in case of 64-QAM.
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