A Novel Paradigm of Polarization Reconfigurable NOMA with Dynamic Ordered SIC

Thong D. Ngo, Julio Acevedo, Paul S. Oh, Hen-Geul Yeh, Sean Soek-Chul Kwon

Abstract: A new paradigm in non-orthogonal multiple access (NOMA) is proposed and yields significant improvement of sum and individual channel capacity in this paper. Both near and far users can fulfill successive interference cancellation (SIC) in the proposed scheme; while conventional NOMA cannot fulfill SIC at the far user. The proposed scheme of dynamic ordered SIC in this paper utilizes polarization reconfigurable antennas at the transmitter (Tx) and receiver (Rx), which is denominated polarization reconfigurable NOMA (PR-NOMA). Furthermore, PR-NOMA can apply SIC for both users with the same signal-to-noise ratio (SNR). Comprehensive simulation results validate that the novel paradigm of PR-NOMA remarkably outperforms the conventional NOMA with more than 3 bits/sec/Hz improvement in sum channel capacity in the scenario that two users have the same SNR.