论文标题
多用户Swipt-noma的关节交织剂和调制设计
Joint Interleaver and Modulation Design For Multi-User SWIPT-NOMA
论文作者
论文摘要
射频（RF）信号可用于传统的无线信息传输（WIT）和挑战无线功率传输（WPT），这触发了同时无线信息和电力传输（SWIPT）主题的重要研究兴趣。通过进一步利用先进的非正交 - 单次访问（NOMA）技术，我们能够提高资源限制SWIPT系统的光谱效率。在我们的Swipt系统中，混合接入点（HAP）通过利用功率域Noma来叠加到多个机智用户的调制符号，而WPT用户能够收获叠加符号携带的能量。为了最大化转移到WPT用户的能量量，我们通过建设性地将符号叠加到电源域中的WIT用户，在符号块级别中提出了能量交付者和基于星座旋转的调制器的联合设计。此外，提出了一种传输功率分配方案，以确保所有机智用户的符号误差（SER）。通过考虑实用能量收割者的敏感性，模拟结果表明，我们的方案能够大大提高WPT性能，而不会显着降级机智性能。
Radio frequency (RF) signals can be relied upon for conventional wireless information transfer (WIT) and for challenging wireless power transfer (WPT), which triggers the significant research interest in the topic of simultaneous wireless information and power transfer (SWIPT). By further exploiting the advanced non-orthogonal-multiple-access (NOMA) technique, we are capable of improving the spectrum efficiency of the resource-limited SWIPT system. In our SWIPT system, a hybrid access point (H-AP) superimposes the modulated symbols destined to multiple WIT users by exploiting the power-domain NOMA, while WPT users are capable of harvesting the energy carried by the superposition symbols. In order to maximise the amount of energy transferred to the WPT users, we propose a joint design of the energy interleaver and the constellation rotation based modulator in the symbol-block level by constructively superimposing the symbols destined to the WIT users in the power domain. Furthermore, a transmit power allocation scheme is proposed to guarantee the symbol-error-ratio (SER) of all the WIT users. By considering the sensitivity of practical energy harvesters, the simulation results demonstrate that our scheme is capable of substantially increasing the WPT performance without any remarkable degradation of the WIT performance.
