文章基本信息

标题：Selfless Distributed Credit Based Scheduling for Improved QOS In IEEE 802.16 WBA Networks
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作者：C.Kalyana Chakravarthy ; Prof. P.V.G.D. Prasad Reddy
期刊名称：International Journal of Wireless & Mobile Networks
印刷版ISSN：0975-4679
电子版ISSN：0975-3834
出版年度：2009
卷号：1
期号：2
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：Packet and flow scheduling algorithms for WiMAX has been a topic of interest for a long time since the very inception of WiMAX networks. WiMAX offers advantages particularly in terms of Quality of service it offers over a longer range at the MAC level. In our paper, we propose two credit based scheduling schemes one in which completed flows distributes the left over credits equally to all higher priority flows(FDCBSS) and another in which completed flows give away all the excess credits to the highest priority uncompleted flow(SDCBSS). Both the schemes are compatible with 802.16 MAC protocol and can efficiently serve real time bursty traffic with reduced latency and hence improved QOS for real time flows. We compare the two proposed schemes for their latency, bandwidth utilization and throughput for real time burst flows with the basic Deficit Round Robin scheduling scheme.
关键词：scheduling; quality of service; latency