Fluid antenna multiple access (FAMA) is capable of exploiting the high spatial diversity of wireless channels to mitigate multi-user interference via flexible port switching, which achieves a better performance than traditional multi-input-multi-output (MIMO) systems. Moreover, integrated data and energy transfer (IDET) is able to provide both the wireless data transfer (WDT) and wireless energy transfer (WET) services towards low-power devices. In this paper, a FAMA assisted IDET system is studied, where $N$ access points (APs) provide dedicated IDET services towards $N$ user equipments (UEs). Each UE is equipped with a single fluid antenna. The performance of WDT and WET , i.e., the WDT outage probability, the WET outage probability, the reliable throughput and the average energy harvesting amount, are analysed theoretically by using time switching (TS) between WDT and WET. Numerical results validate our theoretical analysis, which reveals that the number of UEs and TS ratio should be optimized to achieve a trade-off between the WDT and WET performance. Moreover, FAMA assisted IDET achieves a better performance in terms of both WDT and WET than traditional MIMO with the same antenna size.

翻译：流体天线多址接入（FAMA）能够利用无线信道的高空间分集特性，通过灵活的端口切换来减轻多用户干扰，从而实现优于传统多输入多输出（MIMO）系统的性能。此外，一体化数据与能量传输（IDET）能够为低功耗设备同时提供无线数据传输（WDT）和无线能量传输（WET）服务。本文研究了一种FAMA辅助的IDET系统，其中$N$个接入点（AP）为$N$个用户设备（UE）提供专用的IDET服务。每个UE配备单根流体天线。通过采用WDT与WET之间的时间切换（TS）策略，从理论上分析了WDT与WET的性能指标，包括WDT中断概率、WET中断概率、可靠吞吐量和平均能量收集量。数值结果验证了我们的理论分析，表明需优化UE数量和TS比例，以在WDT与WET性能之间取得折中。此外，在相同天线尺寸下，FAMA辅助的IDET在WDT和WET性能方面均优于传统MIMO。