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Load-balance and coding awareness protocol multicast in space information network

机译:空间信息网络中的负载平衡和编码意识协议多播

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Applications of multicast technology in space information network are increasing year by year. Due to the inherent characteristics of space information network, the existing multicast protocols are difficult to meet the high-quality service requirements and the need for reliability. A coding-aware and load balancing reliable multicast protocol in space information network is proposed. A coding-aware and load balancing routing metric is designed. This paper defines a load balancing factor to measure load status of the node and the Expected Transmission Time with Coding to measure the coding gain. A new route metric ECTTL (Expected Transmission Time with Coding and Load balancing) which combines the two factors is designed to select the high throughput path routes. It not only has the potential coding opportunity but is also able to prevent routing node overflows due to overload. In route establishment process, according to different business needs, it is preferable to use ECTTL metric to build multipath multicast tree and network coding method to encode the data for transmission. The coding-aware load balancing and reliable multicast protocol LCRM is simulated and analyzed in NS-2 simulation platform, The results showed that the design of coding-aware load balancing and reliable multicast protocol LCRM had good performance in reducing the end-to-end delay, routing overhead and improving the network throughput.
机译:多播技术在空间信息网络中的应用逐年增加。由于空间信息网络的固有特性,现有的多播协议很难满足高质量的服务要求和对可靠性的需求。提出了空间信息网络中的编码感知和负载平衡可靠的多播协议。设计了编码感知和负载平衡路由度量。本文定义了负载平衡因子,以测量节点的负载状态和编码以测量编码增益的预期传输时间。组合两个因子的新路由度量ECTTL(具有编码和负载平衡的预期传输时间)旨在选择高吞吐量路径路径。它不仅具有潜在的编码机会,而且还能够防止由于过载导致的路由节点溢出。在路线建立过程中,根据不同的业务需求,优选使用ECTT度量来构建多径组播树和网络编码方法来编码传输数据。编码感应负载平衡和可靠的多播协议LCRM在NS-2仿真平台中进行了模拟和分析,结果表明,编码感应负载平衡和可靠的多播协议LCRM在减少端到端方面具有良好的性能延迟,路由开销并提高网络吞吐量。

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