无线电通信技术2024，Vol.50Issue(6)：1229-1237,9.DOI:10.3969/j.issn.1003-3114.2024.06.023
基于短距离环境反向散射的有效功率控制策略
Effective Power Control Strategy Based on Short-range Backscattering
摘要
Abstract
This study proposes a power control strategy based on short-range ambient backscatter transmission,uniquely circumven-ting traditional requirement of estimating all the users'Channel State Information(CSI).Its advantage lies in utilizing short-range trans-mission characteristics of Ambient Backscatter Communication(AmBC),requiring only the Primary User(PU)within the backscatter communication range to feedback CSI.This significantly reduces the complexity and resource consumption of channel information feed-back while ensuring that all primary users are free from interference by Secondary User(SU).Based on this,the study further integrates existing power control strategies based on the nearest K primary users,proposing a power control strategy switching mode.This mode can adapt to changes in communication environment,selecting appropriate power control strategy to flexibly meet different communication needs.The study successfully derives accurate closed-form expressions for the outage probability of primary and secondary users under the Nakagami-m channel model,as well as the asymptotic outage probability under the high signal to noise ratio conditions and energy efficiency.Simulation results confirm that,compared to traditional methods,the proposed power control strategy based on short-range ambient backscatter transmission and its power control switching mode exhibit significant advantages in reducing outage probability and improving energy efficiency,demonstrating its innovation and practical value in the wireless communication.关键词
低复杂度/功率控制/环境反向散射/距离/能量效率/中断概率Key words
low-complexity/power control/ambient backscatter/distance/energy efficiency/outage probability分类
信息技术与安全科学引用本文复制引用
郭金伟,杜渂,陈琪美,胡珍珍..基于短距离环境反向散射的有效功率控制策略[J].无线电通信技术,2024,50(6):1229-1237,9.基金项目
国家自然科学基金(62101076) （62101076）
上海市"科技创新行动计划"(22QB1400200)National Natural Science Foundation of China(62101076) （22QB1400200）
Shanghai"Science and Technology Innovation Action Plan"(22QB1400200) （22QB1400200）
