The coupling of space-time block codes (STBCs) with the spatial modulation (SM) scheme can introduce a spatial diversity to the SM systems. This paper presents antenna selection techniques to provide an additional coding gain with the space-time block coded spatial modulation (STBC-SM). Specifically, the selection of optimal transmit antenna elements at the transmitter to send a spatially modulated space-time block code is studied. This paper studies the effects of applying the capacity optimized antenna selection (COAS) algorithm with the STBC-SM. The COAS algorithm has a suboptimal performance with a trade-off between complexity and bit-error-rate (BER) enhancement. Simulation results for STBC-SM with a spectral efficiency of 3 bits/s/Hz have been introduced with and without antenna selection.
ASAATI, Belal and HUDROUSS, AMMAR ABU
"Transmit antenna selection schemes for STBC-SM,"
Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 28:
4, Article 18.
Available at: https://journals.tubitak.gov.tr/elektrik/vol28/iss4/18