RIePDMA and BP-IDD-IC detection

Abstract

Pattern division multiple access (PDMA) is a non-orthogonal multiple access (NOMA) scheme which is proposed to meet the demand of massive connection in the future 5G communications. In this paper, we build a random interleaver (RI) enhanced PDMA (RIePDMA) system by bringing the random interleaver into a PDMA system to further improve the overload of PDMA. Furthermore, we analyze several integrated detection and decoding algorithms with interference cancellation (IC) and propose the iterative detection and decoding based on belief propagation and interference cancellation (BP-IDD-IC). Simulation results show that the proposed RIePDMA system can achieve better block error rate (BLER) performance without increasing the complexity of the receiver. Compared with several other integrated detection and decoding algorithms, the proposed BP-IDD-IC algorithm can get better BLER performance with an acceptable complexity.

A Systematic Review on NOMA Variants for 5G and Beyond

“…Content may change prior to final publication. NCMA [341 -342] NOCA [343] GOCA [337] SOMA [361] RA-CEMA [362] MDMA [363 -364] A : Scrambling NOMA PDMA [345 -347] RIe-PDMA [348] IDMA [329 -335] IGMA [336] RDMA [337] RSMA [327] LSSA [328] BOMA [358 -359] LPMA [360] LCRS [338] SCMA [349 -353] LDS-SVE [354] LDS-CDMA [355 -356] LDS-OFDM [357] WSMA [344] SAMA [345] SSMA [338] PSMA [365] TC-NOMA [366 -367] PC-NOMA [368] SGMA [369] BDM [370] GSOMA [361,371] NORA [372] FIGURE 26: Detailed taxonomy of Code domain NOMA variants at the receiver side. Moreover, it supports grant-free and asynchronous transmission to reduce the signalling overhead because it does not depend upon joint detection and synchronization requirements.…”

“…It is a random interleaved enhanced PDMA scheme used to provide the massive connectivity [348]. It is designed by inserting interleavers between the PDMA encoder and the channel encoder.…”

Downlink Power Allocation Optimization in Pattern Division Multiple Access

“…At present, many researchers have studied the PDMA pattern matrix. For example, the literature [30] and [31] have studied the PDMA pattern matrix, and proposed some pattern matrix design criteria. In addition, a well-known pattern matrix that has provided the best performance is utilized in the literature [30]- [32].…”