User Scheduling in Non-Identically Distributed Nakagami-m MIMO Fading Channels

In this paper, we present a performance analysis of user scheduling over independent and non-identically distributed Nakagami-m fading channels for multiuser MIMO systems exploiting the multiuser and antenna diversities while maintaining fairness among the users. We consider different scheduling schemes including absolute SNR-based scheduling, and normalized SNR-based scheduling schemes for heterogeneous wireless networks. We derive closed-form expressions for the average spectral efficiency, average bit error rate (BER), and outage probability of the system under study for each scheduling scheme. Using the results obtained from the closed-form expressions, we compare the presented schemes and show their significant advantages.