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Space Shift Keying (SSK-) MIMO over Correlated Rician Fading Channels: Performance Analysis and a New Method for Transmit-Diversity

Abstract : In this paper, we study the performance of Space Shift Keying (SSK) modulation for a generic Multiple-Input-Multiple-Output (MIMO) wireless system over correlated Rician fading channels. In particular, our contribution is twofold, i) First, we propose a very general framework for computing the Average Bit Error Probability (ABEP) of SSK-MIMO systems over a generic Rician fading channel with arbitrary correlation and channel parameters. The framework relies upon the Moschopoulos method. We show that it is exact for MIMO systems with two transmit-antenna and arbitrary receive-antenna, while an asymptotically-tight upper-bound is proposed to handle the system setup with an arbitrary number of transmit-antenna. ii) Second, moving from the consideration that conventional SSK-MIMO schemes can offer only receive-diversity gains, we propose a novel SSK-MIMO scheme that can exploit the transmit-antenna to increase the diversity order. The new method has its basic foundation on the transmission of signals with good time-correlation properties, and is called Time-Orthogonal-Signal-Design (TOSD-) assisted SSK modulation (TOSD-SSK). It is shown that the proposed method can increase twofold the diversity order for arbitrary transmit- and receive-antenna. In particular, for MIMO systems with two transmit-antenna and Nr receive-antenna full-diversity equal to 2Nr can be achieved. Analytical frameworks and theoretical findings are substantiated via Monte Carlo simulations for various system setups.
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Submitted on : Friday, January 20, 2012 - 12:10:43 AM
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Marco Di Renzo, Harald Haas. Space Shift Keying (SSK-) MIMO over Correlated Rician Fading Channels: Performance Analysis and a New Method for Transmit-Diversity. IEEE Transactions on Communications, Institute of Electrical and Electronics Engineers, 2011, 59 (1), pp.116-129. ⟨10.1109/TCOMM.2011.111710.090775⟩. ⟨hal-00658681⟩

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