Integration of Energy, Computation and Communication in 6G Cellular Internet of Things

To jointly address the critical issues of the sixth-generation (6G) cellular internet of things (IoT), i.e., energy supply, data aggregation, and information transmission, we design a framework integrating energy, computation and communication (ECC). Firstly, the base station (BS) charges massive IoT devices simultaneously via wireless power transfer (WPT) in the downlink. Then, IoT devices with the harvested energy carry out the computation task and the communication task in the uplink over the same spectrum. To improve the overall performance of ECC, we propose a joint beamforming design algorithm for the BS and the IoT devices. Finally, simulation results validate the effectiveness of the proposed algorithm in 6G cellular IoT.