JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 29 Issue 4
July 2014
Article Contents
ZHOU Jing. An improved low-delay MAC protocol for WSNs[J]. Journal of Light Industry, 2014, 29(4): 82-87. doi: 10.3969/j.issn.2095-476X.2014.04.019
Citation: ZHOU Jing. An improved low-delay MAC protocol for WSNs[J]. Journal of Light Industry, 2014, 29(4): 82-87. doi: 10.3969/j.issn.2095-476X.2014.04.019 shu

An improved low-delay MAC protocol for WSNs

  • Received Date: 2014-03-25
    Available Online: 2014-07-15
  • Aiming at the problem that IEEE 802.15.4 MAC protocols in wireless sensor networks had high delivery latency,an improved low-delay MAC mechanism LD-MAC based on the existing LE-MAC protocol was proposed.The protocol reduced the delivery latency by improving the number of CCA.When the backoff counter reached zero,the node performed carrier sensing that consisted of clear channel assessment (CCA) for the next CW consecutive backoff slots.If the channel was sensed idle during the first CCA,the node tansmitd the data directly. The properties of the improved mechanism were analyzed theoretically by using two-dimensional Markov chain model. The simulation results showed that LD-MAC not only reduced the delivery latency but also improved the throughput significantly by only increasing energy consumption slightly.
  • 加载中
    1. [1]

      Ye Wei,Heidemann J,Estrin D.Medium access control with coordinated adaptive sleeping for wireless sensor networks[J].IEEE/ACM Transactions on Networking,2004,12(3):493.

    2. [2]

      LEE M,LEE J J,KIM J B,et al.Adaptive packing strategy to reduce packing loss in MF-TDMA satellite networks[C]//Proceeding of International Conference on Computational Science and Its Applications,Berlin:Springer,2011:133.

    3. [3]

      Wen H,Lin C,Chen Z J,et al.An improved Markov model for IEEE 802.15.4 slotted CSMA-CA mechanism[J].Computer Science and Technology,2009,24(3):495.

    4. [4]

      Buratti C,Das A K,Roy S.Performance analysis of IEEE 802.15.4 Beacon-Enabled mode[J].IEEE Vehicular Technology Society,2010,59(4):2031.

    5. [5]

      陈金,樊晓平.非饱和状态下时隙CSMA/CA机制改进与性能分析[J].计算机工程与应用,2012,48(30):140.

    6. [6]

      Lai S W,Ravindran B.On Distributed time-dependentshortest paths over duty-cycled wireless sensor networks[C]//Proceeding of the 29th Annual Joint Conference of the IEEE Computer and Communiactions Societies,Washington D.C.:IEEE,2010:1.

    7. [7]

      何剑,白光伟,曹磊.DQ-MAC:一种基于区分服务的WSN信道访问机制[J].计算机科学,2010,37(12):30.

    8. [8]

      Bianchi G.Performance analysis of the IEEE802.11 distributed coordination function[J].IEEE Journal on Selected Areas in Communications,2000,18(3):535.

    9. [9]

      Sun Y,Du S,Gurewitz O,et al.DW-MAC:a low latency,energy efficient demand wakeup MAC protocol for wireless sensor networks[C]//Proceeding of ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc),NY:ACM,2008:53.

Article Metrics

Article views(1162) PDF downloads(34) Cited by()

Ralated
    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return