MAC层实时业务满意度评价模型及基于满意度的包调度与资源分配方法
doi: 10.3724/SP.J.1146.2008.01063
MAC Layer Real-time Traffic Satisfaction Evaluation Model and a Satisfaction Based Packet Scheduling and Resource Allocation Algorithm
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摘要: 该文给出了无线通信系统中MAC层可实现的评价用户VoIP业务和实时视频业务满意度的方法,该方法根据MAC层统计的丢包率及丢包模式等信息计算当前业务的用户满意度。基于文中的业务满意度评价准则,该文进一步提出一种在WiMax系统中基于满意度的包调度和资源分配算法。仿真结果表明,该方法在保证系统获得较高吞吐率的同时,能够更好的保证实时业务的满意度。Abstract: In this paper, a practicable user traffic satisfaction evaluation model of the VoIP traffic and the real-time video traffic is proposed. This method calculates the users traffic quality of experience according to the packet loss rate and the packet loss pattern measured in MAC layer. Using the proposed traffic satisfaction evaluation criterion, a satisfaction based packet scheduling and resource allocation algorithm is proposed. The simulation results show that, the proposed algorithm can provide better traffic satisfaction to users while keeping a high system throughput.
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