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IEEE 802.15.4中信道利用率的分析与改进

Analysis and Improvement of Channel Utilization in IEEE 802.15.4
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摘要 在分析IEEE 802.15.4网络中为时延敏感应用提供的保护时隙(GTS)分配策略后,指出GTS分配中信道利用率低等不足。为此,对IEEE 802.15.4中的GTS进行改进。将GTS时隙再次划分为微时隙,与标准GTS申请命令不同,节点无须指定所需的GTS长度,而是提供需要发送的数据数量和数据长度,通过协调节点来决定所分配的GTS长度。仿真实验结果表明,改进后协议能提高信道利用率和网络吞吐量。 In this paper, the Guaranteed Time Slot（GTS） allocation mechanism used in IEEE 802.15.4 networks for time critical applications is analyzed. In order to improve the utilization of the channel, mainly two changes are made. First the GTS time slots are divided into minislot adaptively. Then the GTS request command is changed slightly; instead of explicitly indicate the GTS length, the number of GTS packet and packet length are notified. Simulation results show that the proposed protocol enhances the channel utilization and network throughput.
作者 孙启 钱汉望 刘建坡 邱云周
机构地区 中国科学院上海微系统与信息技术研究所
出处 《计算机工程》 CAS CSCD 2014年第4期103-107,共5页 Computer Engineering
基金 无线传感器网络重点实验室基金资助项目(9140C18010211ZK3401)
关键词 IEEE 802 15 4标准 无线传感器网络 介质访问控制 保护时隙 信道利用率 IEEE 802.15.4 standard Wireless Sensor Network（WSN） Medium Access Control（MAC） Guaranteed Time Slot（GTS） channel utilization
分类号 TN915.4 [电子电信—通信与信息系统]
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参考文献12

  • 1Callaway E, Gorday P, Hester L, et al. Home Networking with IEEE 802.15.4: A Developing Standard for Low-rate Wireless Personal Area Networks[J]. Communications Magazine, 2002, 40(8): 70-77.
  • 2IEEE. 802.15.4e-2012 IEEE Standard for Local and Metropo- litan Area Networks Part 15.4: Low-rate Wireless Personal Area Networks(LR-WPANs) Amendment 1: MAC Sub- layer[S]. 2012.
  • 3Na C, Yang Yaling, Mishra A. An Optimal GTS Scheduling Algorithm for Time-sensitive Transactions in IEEE 802.15.4 Networks[J]. Computer Networks, 2008, 52(13): 2543-2557.
  • 4Huang Yukai, Pang Aichun, Hung Huinien. An Adaptive GTS Allocation Scheme for IEEE 802.15.4[J]. IEEE Transactions on Parallel and Distributed Systems, 2008, 19(5): 641-651.
  • 5Koubaa A, Song Youqiang. Evaluation and Improvement of Response Time Bounds for Real-time Applications Under Non-pre-emptive Fixed Priority Scheduling[J]. International Journal of Production Research, 2004, 42(14): 2899-2913.
  • 6GTS Allocation in Beacon Enabled IEEE 802.15.4[C]//Proc. of the 6th Annual IEEE Communications Society Conference on the Sensor, Mesh and Ad Hoc Communications and Networks. [S. 1.]: IEEE Press, 2009: 1-9.
  • 7李晓记,陈晨,仇洪冰,莫玮.基于移动性感知的无线传感器网络GTS自适应分配策略[J].通信学报,2010,31(10):212-220. 被引量：3
  • 8Koubaa A, Alves M, Tovar E. GTS Allocation Analysis in IEEE 802.15.4 for Real-time Wireless Sensor Networks[C]// Proc. of the 20th International Parallel and Distributed Processing Symposium. [S. 1.]: IEEE Press, 2006.
  • 9Song J, Ryoo J D, Kim S, et al. A Dynamic GTS Allocation Algorithm in IEEE 802.15.4 for QoS Guaranteed Real-time Applications[C]//Proc. of IEEE International Symposium on the Consumer Electronics. [S. 1.]: IEEE Press, 2007:1-6.
  • 10向碧群,李艳体,王小平,李云.基于IEEE 802.15.4的无线传感器网络性能分析[J].计算机应用研究,2011,28(12):4684-4687. 被引量：6

二级参考文献45

  • 1杨仁忠,侯紫峰.基于AP预先转发的802.11无线局域网切换机制研究[J].计算机研究与发展,2004,41(8):1376-1381. 被引量：13
  • 2MiSic J , Shafi S, MiSic V B. The Impact of MAC Parameters on the Performance of 802. 15. 4 PAN [J]. Elsevier Ad hoc Networks Journal, 3(5) :509-528, 2005.
  • 3Koubaa A, Alves M, Tovar E. A Comprehensive Simulation Study of Slotted CSMA/CA for IEEE 802. 15.4 Wireless Sensor Networks [C]// Workshop on Factory Communication Systems (WFCS'06), Torino (Italy), Jun. 2006.
  • 4Anis Koubaa, Mdrio Alves, Bilel Nefzi, Yeqiong Song. Improving the IEEE 802. 15. 4 Slotted CSMA/CA MAC for Time-Critical Events in Wireless Sensor Networks[C]//Proceedings of the Workshop of Real-Time Networks, 2006.
  • 5Kim T, Choi S. Priority-Based Delay Mitigation for Event- Monitoring IEEE 802. 15.4 LR-WPANs[J]. IEEE Communications Letters, Nov. 2005.
  • 6Zhijia Chen, Chuang Lin, Hao Wen, Hao Yin. An Analytical Model for Evaluating IEEE 802. 15. 4 CSMA/CA protocol in Low-Rate Wireless Application[C]// IEEE 21st International Conference on Advanced Information Networking and Applications Workshops, 2007.
  • 7IEEE 802. 15. 4, Standard -2003, Standard for Part 15. 4, Wireless Medium Access Control (MAC) and Physical layer (PHY) Specifications for Low Rate Wireless Personal Area Networks (WPAN)[S]. New York.. IEEE, NY, 2003.
  • 8Koubaa A, Alves M, Tovar E. IEEE 802. 15. 4 for Wireless Sensor Networks: A Technical Overview[R]. IPP-HURRAY Technical Report (TR-050702), Jul. 2005.
  • 9Zheng J, Lee M L. A Comprehensive Performance Study of IEEE 802. 15. 4[M]. IEEE Press Book, 2004,
  • 10Kouba A, Alves M, Tovar E. A Comprehensive Simulation Study of Slotted CSMA/CA for IEEE 802. 15.4 Wireless Sensor Networks [C]// In Proceedings of the 6th IEEE International Workshop on Factory Communication Systems (WFCS 2006), Torino (ITALY), 2006.

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计算机工程
2014年 第4期

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