Waveform Design for Wireless Powered and Backscatter Hybrid Communication System  

作　　者：Yuxin Ding Bin Rao Jie Hu 

机构地区：[1]School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China

出　　处：《Journal of Communications and Information Networks》2024年第4期309-319,共11页通信与信息网络学报(英文)

基　　金：supported in part by Sichuan Major Research and Development Project under Grant 2022YFQ0090;in part by the Stable Supporting Fund of National Key Laboratory of Underwater Acoustic Technology.

摘　　要：For the waveform design and research of wireless powered and backscatter hybrid communication system,it is crucial to balance energy harvesting with ensuring communication rate performance.Considering the communication needs of traditional users in the hybrid communication system is particularly practical.In this paper,we study the model of wireless powered and backscatter hybrid communication system,while also taking the traditional orthogonal frequency division multiplexing(OFDM)user system into account.We jointly design the transmitting signal waveform and the backscatter signal waveform to ensure the communication performance of the traditional user while simultaneously enhancing the communication and energy transmission performance of the hybrid communication system.We maximize the signal-to-noise ratio(SNR)at the receiver by jointly optimizing the amplitude and phase of the transmitted signal waveform from the radio frequency(RF)source and the reflection coefficient of the backscatter device(BD).Furthermore,we use geometric programming methods to solve the problem.The simulation results confirm the effectiveness of the proposed scheme.

关 键 词：backscatter communication wireless powered communication OFDM waveform optimization design 

分 类 号：TN92[电子电信—通信与信息系统]