Optimization of Linear Dispersion Codes for Two-Way Wireless Relay Networks

Ha X. NGUYEN; Ha H. NGUYEN; Tho LE-NGOC

doi:10.1587/transfun.E93.A.656

Regular Section

Optimization of Linear Dispersion Codes for Two-Way Wireless Relay Networks

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Keywords: distributed space-time coding, two-way relay network, coding gain, pairwise error probability (PEP), stochastic optimization

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2010 Volume E93.A Issue 3 Pages 656-659

DOI https://doi.org/10.1587/transfun.E93.A.656

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Abstract

A stochastic quasi-gradient algorithm is applied to design linear dispersion (LD) codes for two-way wireless relay networks under Rayleigh fading channels. The codes are designed to minimize an upper bound of the average pairwise error probability. Simulation results show that the codes obtained by the optimization technique achieve a coding gain over codes that are randomly generated based on the isotropic distribution.

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