Xu, Tianheng; Zhang, Ning; Zhou, Ting; Hu, Honglin; Tao, Xiaoming

MOBILE NETWORKS AND MANAGEMENT, MONAMI 2021

2022, 418, 1867-8211

Xu, Tianheng; Zhang, Ning; Zhou, Ting; Hu, Honglin; Tao, Xiaoming

With the rollout of fifth-generation (5G) communications, researches for beyond fifth generation (B5G) communications are being launched globally. In this paper, we explore for possible ways to integrate two promising techniques, including non-orthogonal multiple access (NOMA) and statistical signal transmission (SST), seeking a feasible perspective to promote the development of B5G communications. Specifically, NOMA allows multiple users to occupy the same spectrum resource, which can greatly improve spectrum efficiency. On the other hand, SST utilizes higher-order moments to convey additional data over traditional first-order moment signals, which is capable of supporting inter-system data exchange. To verify the feasibility of combining NOMA and SST, in this paper we outline the transceiver architecture, and conceive the workflow for this promising NOMA-SST system. Considering that NOMA users at a same spectrum resource have intrinsic energy gaps, we further design a dedicated transmission strategy for NOMA-SST technique, aiming at compensating the performance for NOMA users with lower power levels. Numerical results reflect that the proposed technique can achieve satisfactory detection performance, which is promising for applications.