多媒体无线Mesh网基于机会路由的网络编码

采用机会路由下无线Mesh网络的链路吞吐量模型，利用确定性网络演算工具，得到无线Mesh网络节点数据积压的上界以及端到端数据流延迟和抖动的上界;然后设计满足多媒体服务质量的确定性网络编码（DNC），提出ETC作为确定机会路由中编码节点的指标，在节点数据积压未达到上界时，编码节点采用线性网络编码，提高网络的性能;提出ETP作为机会路由中选择候选节点的指标，主要考虑端到端的延迟和延迟抖动确定接收数据的候选集。仿真结果表明可以达到较好的效果。

Study of network coding based on opportunistic routing in multimedia wireless mesh networks

Making use of a deterministic network calculus tool，the wireless mesh network nodes’ backlog upper bound，the end-to-end upper delay bound and the end-to-end upper delay jitter bound have been derived based on the existing link throughput model which is same with opportunistic routing.And then a Deterministic Network Coding（DNC） which meets the QoS is designed.An ETC（Expect Transmission Coding） considering the node’s backlog upper bound is proposed to a guide line which determines the coding nodes.In order to improve the performance，the encode nodes using linear network coding before the node’s backlog upper bound are exceeded.The represented ETP considering the jitter and the end-to-end upper delay jitter bound is a guide line which determines the received candidate nodes.Comprehensive simulations and results verify the validation of the theoretical results in the paper.