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多跳无线局域网视频质量优化的路由与源码率控制

Multi-hop WLAN Video Distortion Optimized Routing and Source Rate Control
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摘要 使用以视频质量为中心的跨层设计思想，把应用层视频质量建模为网络层行为的函数，将用于视频传输的多跳无线局域网的结点带宽分配问题归结为整个网络范围内的流传输路径选择和码率控制问题，带宽调度优化的目标是使接收端总解码视频质量最佳，给出一个基于遗传算法的启发式方案以求解该优化问题并证明了算法的有效性. Model the end-to-end distortion based video quality as a function of network layer packet loss and delay,and for- mulate a network-wide optimal routing and rate allocation problem that minimizes the total video distortion. A genetic algorithm based heuristic solution is proposed to solve this optimization problem. The evaluation results show that the proposed solution is effi- cient and robust enough to adapt the video requirements dynamics.
作者 李昕 张宏科
机构地区 北京交通大学电子信息工程学院
出处 《电子学报》 EI CAS CSCD 北大核心 2010年第B02期160-164,共5页 Acta Electronica Sinica
基金 国家自然科学基金(No.60910202) 北京市自然科学基金(No.4091003)
关键词 多跳无线局域网 流媒体传输 路由算法 速率控制 启发式算法 multihop WLAN video streaming routing algorithrn mte allocation heuristic algorithm
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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参考文献6

  • 1H Badis,K A Agha. QOLSR:QoS routing for Ad hoc Wireless Networks using OLSR[A]. Wiley European Transaction on Telecommtmications[C] .2005,15(4) :427 - 442.
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二级参考文献15

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共引文献8

电子学报
2010年 第B02期

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