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Non-orthogonal Multiple Access with
Practical Interference Cancellation for MIMO Systems Xin Su1
and HaiFeng Yu2 1College of IoT Engineering, Hohai
University, Changzhou, 213022, China
Abstract The concept
of non-orthogonal multiple access (NOMA) is
presented as a candidate radio access technology for systems beyond the 4th
generation (4G) mobile communication systems. NOMA, which is different from
the current long term evolution (LTE) radio access schemes, utilizes the
power domain for user multiplexing at the transmitter side and adopts a
successive interference cancellation (SIC) receiver as the baseline receiver
scheme considering the expected mobile device evolution in the future. In
this paper, we investigate the link-level performance of NOMA in the cellular
downlink multiple-input multiple-output (MIMO) systems by taking into account
the practical ordered SIC (OSIC) schemes. The goal is to clarify the
performance gap of NOMA scheme with the ideal and practical SIC, and to
examine the possibility of applying practical NOMA with SIC to the cellular
systems in the near future. |