面向6G上下行解耦技术的性能指标分析  

Performance Analysis of Decoupled Uplink and Downlink for 6G Networks

作　　者：张玉洁 施建锋 

机构地区：[1]南京铁道职业技术学院智能工程学院,江苏南京210031 [2]南京信息工程大学电子与信息工程学院,江苏南京210044

出　　处：《工业控制计算机》2024年第10期73-75,95,共4页Industrial Control Computer

基　　金：江苏省自然科学基金项目(BK20210641);国家自然科学基金项目(62201274);南铁院校大创(YXKC2023095),南铁院校优质课(电子技术基础)。

摘　　要：上行链路(Uplink,UL)和下行链路(Downlink,DL)解耦是第六代移动通信网络(the sixth-generation mobile communication networks,6G)的一个关键特性,可以增强覆盖范围、能源效率和频谱效率。然而,6G中的上下行链路解耦技术指标分析在很大程度上仍然是空白的。讨论了上下行传输中用户接入方案,推导了多种情况下的下行链路接入概率。在此基础上,进一步推导了上行链路和下行链路中断概率表达式,且利用柯西-施瓦茨不等式分析了上行链路中断概率的下界。仿真结果表明,推导的性能解析表达式与蒙特卡罗仿真结果相吻合,中等信噪比时,理论下界与真实值之间的间隙很小。The decoupling of uplink(UL)and downlink(DL)is a key feature of 6G networks,which can enhance coverage,mobility,energy efficiency,and spectrum efficiency.However,the performance analysis for 6G networks with decoupled UL and DL remains largely open.This paper discusses the UL and DL association schemes and derive the DL association probability in different cases.Based on them,further derive the expressions of UL and DL outage probability.A lower bound of the UL outage probability is achieved by using the Cauchy-Schwarz inequality.Simulation results show the analytical expressions can match well with the Monte Carlo simulations and the lower bound is tight in moderate target signal-to-noise(SNR).

关 键 词：第六代移动通信网络 上下行链路解耦 DL接入概率 UL/DL中断概率 

分 类 号：TN929.5[电子电信—通信与信息系统]