电讯技术2026，Vol.66Issue(8)：1317-1329,13.DOI:10.20079/j.issn.1001-893x.250313001
基于多属性决策的5G低轨卫星网络星间切换方案
Multi-attribute Decision Based Inter-satellite Handover Scheme for 5G LEO Satellite Networks
摘要
Abstract
To address the inter-satellite handover problem in 5G low Earth orbit(LEO)satellite networks,a handover scheme based on multi-attribute decision is proposed.Firstly,an LEO satellite network consisting of multiple satellites and multiple moving ground user equipment(GUE)is considered.The satellite channel is modeled by considering the path loss,the rain attenuation,and the satellite antenna gain.Then,different from conventional single-attribute or three-attribute schemes,four attributes for handover are considered in this scheme,including the received power,the remaining service time,the residual load,and the two-way transmission latency.Subjective and objective weights are set for the four attributes,respectively.The joint weight determination method based on maximizing deviations is used to calculate attribute weights,and the optimal satellite is selected via the Technique for Order Preference by Similarity to an Ideal Solution(TOPSIS).Subsequently,an inter-satellite handover algorithm based on improved entropy weight-TOPSIS is developed.The numerical results show that compared with the traditional single-attribute handover strategies,the proposed inter-satellite handover strategy can reduce the handover frequency and unnecessary handover frequency by 10%.关键词
5G低轨卫星网络/星间切换/双向传输时延/多属性决案/逼近理想解排序法(TOPSIS)Key words
5G LEO satellite network/inter-satellite handover/two-way transmission latency/multi-attribute dicision/technique for order preference by similarity to an ideal solution(TOPSIS)分类
信息技术与安全科学引用本文复制引用
张丹婷,孙子琦,董帅,曾智钊,王金元..基于多属性决策的5G低轨卫星网络星间切换方案[J].电讯技术,2026,66(8):1317-1329,13.基金项目
国家自然科学基金资助项目(62472233) （62472233）
