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6LoWPAN网络节点信道接入延时性能研究 被引量：5

Channel access delay analysis of node for 6LoWPAN
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摘要 为了优化6LoWPAN网络MAC协议性能,提出了一种基于饱和负载的时隙CSMA/CA机制的Markov链模型,并对协议主要网络参数进行了数学推导。基于该模型对节点平均接入延时及网络的信道接入概率等参数进行数值计算,重点分析了协议参数对网络延时性能的影响。数学分析表明,该模型较好地描述了基于饱和负载的IEEE 802.15.4 MAC协议的信道竞争接入机制,而合理的协议参数设置能够有效地改善网络节点平均信道接入延时性能。 To optimize the performance of MAC in 6LoWPAN,this paper proposed a mechanism based on saturated traffic for slotted CSMA/CA algorithm,and it established a Markov chain model for it.Then,this paper gave ont an expression using the new model for calculating the main parameters.Furthermore,it carried out the numerical analysis based on the model of the node access delay and channel access probability,and analyzed the impact of protocol parameters to the node average access delays.Finally,by the theoretical analysis showes that the model describes the slotted CSMA/CA mechanism well,and reasonable settings for CSMA/CA parameters can improve the performance of node average access delay.
作者 程宏斌 王晓喃 孙霞 聂盼红
机构地区 常熟理工学院计算机科学与工程学院
出处 《计算机应用研究》 CSCD 北大核心 2013年第1期246-248,共3页 Application Research of Computers
基金 江苏省自然科学基金资助项目(BK2009133)
关键词 6LoWPAN 时隙CSMA CA 接入延时 参数 6LoWPAN slotted CSMA/CA access delay parameter
分类号 TP393.03 [自动化与计算机技术—计算机应用技术]
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参考文献8

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同被引文献28

  • 1程远,张源,高西奇.差错信道下无线局域网丢包率性能分析[J].通信学报,2007,28(5):126-131. 被引量：13
  • 2RAMACHANDRAN I,DAS A K,ROY S.Analysis of the contention access period of IEEE 802.15.4 MAC[J].ACM Transactions on Sensor Networks,2007,3(1):319-321.
  • 3HE J,TANG Z,CHEN H H,et al.An accurate Markov model for slotted CSMA/CA algorithm in IEEE 802.15.4networks[J].IEEE Communications Letters,2008,12(6):420-422.
  • 4Wen Hao,Lin Chuang,Chen Zhijia,et al.An improved Markov model for IEEE 802.15.4 slotted CSMA/CA mechanism[J].Journal of Computer Science and Technology,2009,24(3):495-504.
  • 5PARK P,ERGEN S C,FISCHIONE C,et al.Duty-cycle optimization for IEEE 802.15.4 wireless sensor networks[J].ACM Transactions on Sensor Networks(TOSN),2013,10(1):739-751.
  • 6PRASAD Y,PACHAMUTHU R.Analytical model of adaptive CSMA-CA MAC for reliable and timely clustered wireless multi-hop communication[C].Internet of Things(WF-Io T),2014 IEEE World Forum on.IEEE,2014:212-217.
  • 7PARK P,MARCO P D,FISCHIONE C,et al.Modeling and optimization of the IEEE 802.15.4 protocol for reliable and timely communications[J].IEEE Transactions on Parallel and Distributed Systems,2013,24(3):550-564.
  • 8Pollin S,Ergen M,Ergen S,et al.Performance analysis of slotted carrier sense IEEE 802.15.4 medium access layer[J].IEEE Trans on Wireless Communications,2008,7(9):3359-3371.
  • 9Wen Hao,Lin Chuang,Chen Zhijia,et al.An improved Markov model for IEEE 802.15.4 slotted CSMA/CA mechanism[J].Journal of Computer Science and Technology,2009,24(3):495-504.
  • 10Park P,Fischione C,Johansson K H.Adaptive IEEE 802.15.4 protocol for energy efficient,reliable and timely communications[C]//Proc of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks.New York:ACM Press,2010:327-338.

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计算机应用研究
2013年 第1期

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