Spectral and power efficiency trade-offs for multiple-antenna reception techniques under co-channel interference

Abstract

Spatial receive diversity and beamforming are two competing multiple-antenna reception strategies for enhancement of spectral and power efficiency of wireless communication systems because they both use the same resource, that is the spatial degrees of freedom. We analyse in this paper ergodic, block-fading outage and delay-limited outage spectral efficiencies as well as average bit error rates and service outage probabilities of a hybrid diversity-beamforming receiver with antenna partitioning over flat Rayleigh-fading uplink channels under co-channel interference. The results validated by Monte Carlo simulations decipher the trade-offs in terms of spectral and power efficiencies in between all-diversity, hybrid diversity-beamforming and all-beamforming reception for different scenarios represented by average signal-tonoise ratio per path and desired signal-to-interference ratio for using these multiple-antenna reception techniques in interference-limited wireless communication systems. Copyright © 2011 John Wiley & Sons, Ltd.