On achievable rate of massive MIMO multiple access channels via virtual representation

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• 作者：Yun Xue^a ; ^{xueyun@seu.edu.cn" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Jun Zhang^b ; ^{zhangjun@njupt.edu.cn" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Shi Jin^a ; ^{jinshi@seu.edu.cn" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Xiqi Gao^a ; ^{xqgao@seu.edu.cn" class="auth_mail" title="E-mail the corresponding author}Author Vitae
• 关键词：Massive MIMO ; MMSE receiver ; Distribution of SINR ; Achievable rate ; Independent and nonidentical distributed
• 刊名：Physical Communication
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：20
• 期：Complete
• 页码：133-140
• 全文大小：739 K

文摘

This paper investigates the uplink achievable rates of massive multiple-input multiple-output (MIMO) systems in correlated fading channels via virtual representation. The fast fading MIMO channel matrix is assumed to have a Rayleigh-distributed random component with variance profile. Under the minimum mean-squared error receiver employed, we first derive the first and second asymptotic moments of signal-to-interference-plus-noise ratio (SINR). Then, we propose that the probability distribution function of SINR, which can be well approximated by a Gamma distribution. Finally, we derive a lower bound on the SINR and approximation of achievable rate. Numerical results demonstrate that both the lower bound on the SINR and the approximated rate apply for a finite number of antennas and remain tight.