Bit Error Probability of Space Shift Keying MIMO over Multiple-Access Independent Fading ChannelsReportar como inadecuado

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* Corresponding author 1 Division Télécoms et Réseaux L2S - Laboratoire des signaux et systèmes 2 IDCOM - Institute for Digital Communications

Abstract : In this paper, we study the performance of space-shift keying SSK modulation for multiple-input-multiple-output MIMO wireless systems in the presence of multiple-access interference. More specifically, a synchronous multiuser scenario is considered. The main technical contributions of this paper are given as follows: Two receiver structures based on the maximum-likelihood ML criterion of optimality are developed and analytically studied, i.e., single- and multiuser detectors. Accurate frameworks for computing the average bit error probability ABEP over independent identically distributed i.i.d. Rayleigh fading channels are proposed. Furthermore, simple and easy-to-use lower and upper bounds for performance analysis and system design are introduced. The frameworks account for the near-far effect, which significantly affects the achievable performance in multiple-access environments. In addition, we extend the analysis to generalized SSK GSSK modulation, which foresees multiple active antennas at the transmitter. With respect to SSK modulation, GSSK modulation achieves higher data rates at the cost of increased complexity at the transmitter. The performance of SSK and GSSK modulations is compared with that of conventional phase-shift keying PSK and quadrature amplitude modulation QAM schemes, and it is shown that SSK and GSSK modulations can outperform conventional schemes for various system setups and channel conditions. In particular, the performance gain of SSK and GSSK modulations increases for increasing values of the target bit rate and of the number of antennas at the receiver. Finally, we put forth the concept of coordinated multipoint or network MIMO SSK CoMP-SSK modulation as a way of exploiting network cooperation and the spatial-constellation diagram to achieve high data rates. Analytical derivations and theoretical findings are substantiated through extensive Monte Carlo simulations for many setups.

Autor: Marco Di Renzo - Harald Haas -



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