Sum-Rate Analysis of Spectrum Sharing Spatial Multiplexing MIMO Systems with Zero-forcing and Multiuser Diversity
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This paper considers a multiuser spectrum sharing (SS) multiple-input multiple-output (MIMO) system with zero-forcing (ZF) operating in a Rayleigh fading environment. We provide an asymptotic sum-rate analysis to investigate the effects of different parameters on the multiuser diversity gain. For a ZF SS spatial multiplexing system with scheduling, the asymptotic sum-rate scales like Nt log2(Q(Nt Np√K - 1)/N t), where Np denotes the number of antennas of primary receiver, Q is the interference temperature, and K represents the number of secondary transmitters. © 2013 IEEE.
author list (cited authors)
Yang, L., Qaraqe, K., Serpedin, E., & Alouini, M.