计算机工程与科学2026，Vol.48Issue(5)：810-827,18.DOI:10.3969/j.issn.1007-130X.2026.05.006
CoTree:边缘计算中无边界、分布式的服务器协作策略
CoTree:Borderless and decentralized server cooperation in edge computing
摘要
Abstract
In edge computing(EC),offloading tasks to edge servers or the cloud can significantly en-hance system performance.However,due to the heterogeneous and dynamic traffic distribution in edge computing,it is challenging for a single edge server to provide satisfactory computing services anytime and anywhere.This issue has spurred research on collaboration among edge servers.Previous server co-operation algorithms have been limited by a one-hop cooperation area restriction.Even though some studies have extended the cooperation area to multiple hops,they still fail to support the core issue in edge computing,namely task offloading.This paper proposes a novel distributed,borderless server co-operation algorithm model called CoTree,which incorporates task offloading strategies.Its cooperation domain is unrestricted,with each server forming its own basic cooperation unit(BCU)and calculating its declared capacity based on the BCU.Additionally,it considers factors such as server computing ca-pacity,processing delay,and the forwarding delay of tasks and computation results.Simulation results demonstrate that CoTree outperforms previous research efforts in terms of performance.关键词
边缘计算/服务器协作/任务卸载/处理时延Key words
edge computing/server cooperation/task offloading/processing delay分类
信息技术与安全科学引用本文复制引用
袁鑫,李宁,高铭锋,房姝彤,张兆心,于昌利..CoTree:边缘计算中无边界、分布式的服务器协作策略[J].计算机工程与科学,2026,48(5):810-827,18.基金项目
国家自然科学基金(52571156,52475009) （52571156,52475009）
山东省自然科学基金(ZR2025QC666) （ZR2025QC666）
北京控制工程研究所智能灵巧机器人国家重点实验开放基金(SEIT-2025-2) （SEIT-2025-2）
