Agent-based load balancing routing for LEO satellite networks
Agent-based load balancing routing for LEO satellite networks
复制标题
LEO 卫星网络基于代理的负载平衡路由
DOI：
10.1016/j.comnet.2010.06.019
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发表时间：
2010-12-03
影响因子：
5.6
通讯作者：
Wang, Ru-chuan
中科院分区：
文献类型：
--
作者：
Rao, Yuan;Wang, Ru-chuan
为了确保整个卫星网络上流量的智能工程，提出了一种基于代理的负载平衡路由（ALBR）的低地球轨道（LEO）卫星网络的分布式路由方案。使用两种代理。移动代理自主迁移，探索连接源和目的地的路径，收集星间链路（ISL）成本标识符和访问卫星的纬度。同时，固定代理采用指数遗忘功能 估计 ISL 排队延迟 使用传播和排队延迟之和计算 ISL 成本 考虑卫星地理位置以及 ISL 成本评估路径成本 最后更新路由项 通过对类 Courier 系统的仿真，表明所提出的方案能够实现更好的负载平衡，特别是可以降低丢包率，在高流量负载的情况下有效保证更好的吞吐量和端到端延迟限制 此外，实现复杂性分析的结果表明 借助代理技术 ALBR 比其他星上路由方案对星上计算存储信令要求更低 (C) 2010 Elsevier B V 版权所有
To ensure an intelligent engineering of traffic over entire satellite networks a distributed routing scheme for low-earth orbit (LEO) satellite networks agent-based load balancing routing (ALBR) is presented Two kinds of agents are used Mobile agents migrate autonomously to explore the path connecting source and destination to gather inter-satellite link (ISL) cost identifier and latitude of visited satellites Meanwhile stationary agents employ exponential forgetting function to estimate ISL queueing delay calculate ISL cost using the sum of propagation and queueing delays evaluate path cost considering satellite geographical position as well as ISL cost finally update routing Items Through simulations on d Courier-like system the proposed scheme is shown to achieve better load balancing and can especially decrease packet loss ratio efficiently guarantee better throughput and end to-end delay bound in case of high traffic load Furthermore results from the imple mentation complexity analysis demonstrate that with the aid of agent technology ALBR has lower on-board computation storage signaling requirements than other on-board routing schemes (C) 2010 Elsevier B V All rights reserved