基于SRv6的卫星网络业务承载策略  

Traffic Carrying Strategy for Satellite Networks Based on SRv6

作　　者：赵肖河 宋丽华[1] 王晨 ZHAO Xiaohe;SONG Lihua;WANG Chen(School of Information Technology,North China University of Technology,Beijing 100144,China)

机构地区：[1]北方工业大学信息学院,北京100144

出　　处：《无线电通信技术》2025年第2期302-310,共9页Radio Communications Technology

基　　金：国家重点研发计划(2018YFB1800302)。

摘　　要：随着低轨(Low Earth Orbit,LEO)卫星网络的快速发展,其通信能力不断提升,但仍面临高延迟、有限带宽和链路质量波动等关键挑战。传统服务质量(Quality of Service,QoS)管理方法难以有效适应其高速移动、拓扑频繁变化等特点。为解决上述问题,提出了一种基于SRv6的动态路径选择与服务质量保障(Dynamic SRv6 Path Selection and Quality of Service Guarantee,DSRv6-QoS)算法,将SRv6的细粒度网络编程能力与多重约束QoS满意度模型相结合,实现对卫星网络数据流的精确控制和管理。提出基于该算法区域划分思想的段路由扩展头(Segment Routing Header,SRH)动态压缩算法,有效降低了段路由扩展头的开销,仿真实验结果表明,与传统方案相比,DSRv6-QoS在时延、丢包率、链路开销等指标上具有显著优势,平均网络吞吐量提升10.4%,平均负载率指数提升6.8%。DSRv6-QoS在高负载、突发流量等挑战性场景下表现尤为突出,能够有效缓解网络拥塞,保障关键业务的QoS。With the rapid development of Low Earth Orbit(LEO)satellite networks,communication capabilities continue to improve.However,there are still critical challenges such as high latency,limited bandwidth,and fluctuating link quality.Traditional Quality of Service(QoS)management methods struggle to adapt effectively to the characteristics of LEO satellite networks,such as high-speed movement and frequent changes in topology.To address these issues,a novel Dynamic SRv6 Path Selection and Quality of Service Guarante(DSRv6-QoS)algorithm is proposed.This algorithm innovatively combines fine-grained network programming capabilities of SRv6 with a multi-constraint QoS satisfaction model to achieve precise control and management of satellite network data flows.Additionally,a dynamic compression technique based on the concept of regional division for the Segment Routing Header(SRH)is introduced,effectively reducing the overhead of SRH.Simulation results show that compared to traditional approaches,DSRv6-QoS offers significant advantages in terms of latency,packet loss rate,and link overhead,with an average network throughput increase of 10.4%and an average load rate index increase of 6.8%.Moreover,DSRv6-QoS effectively alleviates network congestion in challenging scenarios characterized by high load and burst traffic.

关 键 词：SRv6 卫星网络 路由策略 服务质量 网络编程 

分 类 号：TN919.23[电子电信—通信与信息系统]