Performance of GSM-MIMO With Various Modulation Techniques

  Prashant Indraj Yadav,  Rajesh S. Bansode

In this paper, a generalized spatial modulation (GSM) is described. Generalized spatial modulation (GSM) solve the issue of SM that the transmit antennas needs to be power of 2. Block of information bits of constellation symbol and spatial symbol are mapped in GSM. Combination of transmit antennas activated at every instance is known as spatial symbol. Actual combination of active transmit antenna is being decided by random incoming data stream. In SM where only a single transmit antenna is activated at each instance of time whereas in GSM to increase spectral efficiency it uses base-two logarithmic antennas combinations. As compared to SM, GSM reduces number of communicating antennas. The performance of GSM is analyzed in this paper, and BER performance is derived. In addition, an algorithm to optimize the antenna combination selection is proposed. The result is analyzed in terms of comparison of GSM with traditional SM. GSM shows same spectral efficiency as SM provides but it reduces number of antennas. GSM-MIMO can outperform multiuser SM-MIMO by about 2 to 9 dB at a bit error rate of 〖10〗^(-3).

Keywords- Multiple Input Multiple Output (MIMO), GSM, STBC, BPSK, QPSK, QAM, Spatial modulation, outage probability.

Unique Identification Number - IJEDR1704220
Page Number(s) - 1379-1383
Pubished in - Volume 5 | Issue 4 | December 2017
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Prashant Indraj Yadav,  Rajesh S. Bansode,   "Performance of GSM-MIMO With Various Modulation Techniques", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.5, Issue 4, pp.1379-1383, December 2017, Available at :http://www.ijedr.org/papers/IJEDR1704220.pdf