5G场景下基于风险敏感的动态资源调度方法  

Dynamic Resource Scheduling Method Based on Risk Sensitivity in 5G Scenarios

作　　者：王磊[1] 顾重庆 崔景伍[1] 郑宝玉[1] WANG Lei;GU Chongqing;CUI Jingwu;ZHENG Baoyu(School of Communication and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210009,China)

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210009

出　　处：《软件导刊》2024年第4期52-58,共7页Software Guide

基　　金：国家自然科学基金项目(62071255);江苏省高校自然科学研究重大项目(20KJA510009)。

摘　　要：针对超可靠低延迟通信(uRLLC)和增强型移动宽带(eMBB)动态复用场景中的资源切片问题,eMBB服务专注于高数据速率,而uRLLC在延迟和可靠性方面具有严格要求。鉴于此,资源切片问题被表述为一个eMBB/uRLLC联合资源分配优化问题,其目的是考虑eMBB数据速率的方差以减少立即调度的uRLLC流量对eMBB可靠性的影响。提出一种基于风险敏感的公式为传入的uRLLC流量分配资源,同时最大限度地降低eMBB传输风险,确保uRLLC的传输可靠性,并将优化问题分解为3个子问题,然后将非凸的子问题转换为凸优化问题以获得资源分配的近似解。仿真结果表明,该传输方案在为传入的uRLLC流量分配资源的同时,保证了eMBB和uRLLC业务的传输可靠性。Addressing the resource slicing problem in the dynamic reuse scenario of ultra reliable low latency communication(uRLLC)and enhanced mobile broadband(eMBB),the eMBB service focuses on high data rates,while uRLLC has strict requirements in terms of latency and reliability.Therefore,the resource slicing problem is formulated as a joint resource allocation optimization problem for eMBB/uRLLC,with the aim of considering the variance of eMBB data rates to reduce the impact of immediately scheduled uRLLC traffic on eMBB reliability.A risk-sensitive formula is proposed to allocate resources for incoming uRLLC traffic while maximizing the reduction of risk in eMBB transmis-sion to ensure the reliability of uRLLC transmission.The optimization problem is decomposed into three sub-problems,and the non-convex sub-problems are transformed into convex optimization problems to obtain an approximate solution for resource allocation.Simulation results show that the proposed transmission scheme ensures the transmission reliability of both eMBB and uRLLC services while allocating resources for incoming uRLLC traffic.

关 键 词：5G 风险敏感 动态资源调度 资源分配 eMBB uRLLC 穿孔 复用 

分 类 号：TN92[电子电信—通信与信息系统]