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Performance analysis of optimum combining in antenna array systems with multiple interferers in flat Rayleigh fading

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4 Author(s)
Tokgoz, Y. ; Center for Wireless Commun., Univ. of California, La Jolla, CA, USA ; Rao, B.D. ; Wengler, M. ; Judson, B.

In this letter, we examine the statistical distribution of the signal-to-interference-plus-noise ratio (SINR) of the optimum combining (OC) technique in receive-antenna diversity systems. We decompose the SINR into two components by projection onto the interference subspace for systems with more antennas than interferers. For the case when the number of interferers is larger than the number of antennas, upper and lower bounds on performance are provided.

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Communications, IEEE Transactions on  (Volume:52 ,  Issue: 7 )