Performance Comparison of Different Spatial Modulation Schemes in Correlated Fading Channels

Marco Di Renzo (1) , Harald Haas (2)

1 L2S - Laboratoire des signaux et systèmes
2 IDCOM - Institute for Digital Communications

In this paper, we introduce TOSD–SM (Time–Orthogonal Signal Design assisted Spatial Modulation), which is a novel space modulation scheme based on the principle of the recently proposed Spatial Modulation (SM) wireless transmission technique for Multiple–Input–Multiple–Output (MIMO) systems. We show that, unlike other SM–based methods available in the literature, the proposed approach can offer transmit–diversity gains by properly designing the transmitted signal to have a peaky time auto-correlation function. By considering the basic 2×1 MISO (Multiple–Input–Single–Output) system setup, the optimal Maximum–Likelihood (ML) detector with full Channel State Information (CSI) at the receiver will be developed, and its performance evaluated in closed–form. Performance comparison with other proposed SM schemes over fading channels will evidence two main benefits of TOSD–SM: i) transmit–diversity gains, and ii) intrinsic robustness to spatial correlation of canne fading. Analytical frameworks and findings will also be substantiated via Monte Carlo simulations.

Domaines: Réseaux et télécommunications [cs.NI]

Marco Di Renzo, Harald Haas. Performance Comparison of Different Spatial Modulation Schemes in Correlated Fading Channels. IEEE International Conference on Communications, May 2010, South Africa. pp. 1-6. ⟨hal-00547036⟩