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Performance Measure of Multi-User Detection Algorithms for MIMO Relay Network

Due to the emerging demand on new multimedia applications, next generation wireless communication systems will need to support data rates much greater than 3G systems. This will require more efficient utilization of the radio resources. Relay and multipleinput multiple-output (MIMO) techniques can significantly enhance system power efficiency, extend system coverage and are considered promising candidates for next generation wireless communication systems. In this paper, we study the zero-forcing (ZF) and minimum mean-squared error (MMSE) algorithms for a MIMO relay network and compare their performance in terms of bit-errorrate (BER). In particular, we show their performance in a single-user as well as in a multi-user scenario. Multiuser MIMO relay algorithms have significant performance improvement over single-user algorithms.