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BER Performance of Spatial Modulation Systems Under a Non-Stationary Massive MIMO Channel Model

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Document pages: 12 pages

Abstract: In this paper, the bit error rate (BER) performance of spatial modulation(SM) systems is investigated both theoretically and by simulation in anon-stationary Kronecker-based massive multiple-input-multiple-output (MIMO)channel model in multi-user (MU) scenarios. Massive MIMO SM systems areconsidered in this paper using both a time-division multiple access (TDMA)scheme and a block diagonalization (BD) based precoding scheme, for differentsystem settings. Their performance is compared with a vertical Bell labslayered space-time (V-BLAST) architecture based system and a conventionalchannel inversion system. It is observed that a higher cluster evolution factorcan result in better BER performance of SM systems due to the low correlationamong sub-channels. Compared with the BD-SM system, the SM system using theTDMA scheme obtains a better BER performance but with a much lower total systemdata rate. The BD-MU-SM system achieves the best trade-off between the datarate and the BER performance among all of the systems considered. When comparedwith the V-BLAST system and the channel inversion system, SM approaches offeradvantages in performance for MU massive MIMO systems.

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