Performance Analysis of Decoupled Uplink and Downlink for 6G Networks
张玉洁 1施建锋2
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作者信息
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
折叠
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.
Abstract
The decoupling of uplink(UL)and downlink(DL)is a key feature of 6G networks,which can enhance cover-age,mobility,energy efficiency,and spectrum efficiency.However,the performance analysis for 6G networks with decou-pled UL and DL remains largely open.This paper discusses the UL and DL association schemes and derive the DL asso-ciation 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 sig-nal-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
Key words
6G network/the decoupling of uplink and downlink/DL association probability/UL and DL outage probability
维普
万方数据