This letter studies how the imperfect resolution of near-field beamforming, the key feature of near-field communications, can be used to improve the throughput and connectivity of wireless networks. In particular, a hybrid non-orthogonal multiple access (NOMA) transmission strategy is developed to use preconfigured near-field beams for serving additional users. An energy consumption minimization problem is first formulated and then solved by using different successive interference cancellation strategies. Both analytical and simulation results are presented to illustrate the impact of the resolution of near-field beamforming on the design of hybrid NOMA transmission.

翻译：本文研究了近场通信的关键特征——近场波束赋形的非理想分辨率——如何用于提升无线网络的吞吐量与连接性。具体而言，提出了一种混合非正交多址接入（NOMA）传输策略，利用预配置的近场波束为额外用户提供服务。首先构建了能耗最小化问题，随后通过采用不同的连续干扰消除策略进行求解。通过分析与仿真结果，阐明了近场波束赋形分辨率对混合NOMA传输设计的影响。