Cell-Free Massive MIMO-NOMA Systems with Imperfect SIC and Non-Reciprocal Channels
IEEE Wireless Communications Letters(2021)
Abstract
In this letter, we investigate the impact of non-reciprocities in cell-free massive MIMO with non-orthogonal multiple access (NOMA). To this end, closed-form expressions for the users’ spectral efficiency (SE) are derived assuming pilot contamination, imperfect successive interference cancellation (SIC), and non-reciprocal channels. Based on the attained expressions, illustrative numerical example...
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Key words
Cell-free massive MIMO,imperfect SIC,NOMA,non-reciprocities
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