Spatial modulation: optimal detection and performance analysis
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In this letter, we derive the optimal detector for the so-called spatial modulation (SM) system introduced by Mesleh et al. in . The new detector performs significantly better than the original (4 dB gain), and we support our results by deriving a closed form expression for the average bit error probability. As well, we show that SM with the optimal detector achieves performance gains (1.5-3 dB) over popular multiple antenna systems, making it an excellent candidate for future wireless communication standards. 2008 IEEE.