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Evolved data scheduling scheme based on layered P2P streaming in mobile network

Evolved data scheduling scheme based on layered P2P streaming in mobile network
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摘要 To relieve the negative effect brought by the intricate wireless network environment and unstable user behavior in layered mobile peer-to peer（P2P） streaming service, an evolved layered P2P （E-LP2P） data scheduling scheme in the process of service delivery is introduced in this paper. The data in base layer is scheduled according to its importance in streaming play to guarantee the basic play of streaming. The data in enhancement layer is scheduled according to the characters of streaming data, including its position and amount in server peer set in a multiple tied way towards the data in enhancement layer. To cope with the layer jitter caused by the fluctuation of bandwidth, jitter prevent mechanism is used to adjust the highest layer dynamically during the process of data scheduling. Simulation results show that the E-LP2P can provide good quality of service（QoS） performance in terms of throughput, layer delivery ratio, server load and useless packet ratio. To relieve the negative effect brought by the intricate wireless network environment and unstable user behavior in layered mobile peer-to peer（P2P） streaming service, an evolved layered P2P （E-LP2P） data scheduling scheme in the process of service delivery is introduced in this paper. The data in base layer is scheduled according to its importance in streaming play to guarantee the basic play of streaming. The data in enhancement layer is scheduled according to the characters of streaming data, including its position and amount in server peer set in a multiple tied way towards the data in enhancement layer. To cope with the layer jitter caused by the fluctuation of bandwidth, jitter prevent mechanism is used to adjust the highest layer dynamically during the process of data scheduling. Simulation results show that the E-LP2P can provide good quality of service（QoS） performance in terms of throughput, layer delivery ratio, server load and useless packet ratio.
作者 XIA Hai-lun WANG Ning ZENG Zhi-min
机构地区 School of Information and Communication Engineering
出处 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2012年第3期60-67,共8页 中国邮电高校学报（英文版）
基金 supported by the National Natural Science Foundation of China (60902047) the Fundamental Research Funds for the Central Universities (BUPT 2009RC0120)
关键词 layered streaming P2P mobile network data scheduling layered streaming, P2P, mobile network, data scheduling
分类号 TP368.5 [自动化与计算机技术—计算机系统结构] TN943 [电子电信—信号与信息处理]
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参考文献13

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The Journal of China Universities of Posts and Telecommunications
2012年 第3期

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