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计算机工程

• 移动互联与通信技术 • 上一篇    下一篇

基于多信道的快速数据收集MAC协议

谭金勇,杨中亮   

  1. (重庆大学计算机学院,重庆 400030)
  • 收稿日期:2013-03-27 出版日期:2013-12-15 发布日期:2013-12-13
  • 作者简介:谭金勇(1986-),男,硕士研究生,主研方向:无线传感器网络,信息安全;杨中亮,硕士研究生
  • 基金资助:
    重庆市科技攻关计划基金资助项目(CSTC, 2011AC2198)

Fast Data Collection MAC Protocol Based on Multi-channel

(College of Computer Science, Chongqing University, Chongqing 400030, China)   

  1. (College of Computer Science, Chongqing University, Chongqing 400030, China)
  • Received:2013-03-27 Online:2013-12-15 Published:2013-12-13

摘要: 现有的单信道和多信道介质访问控制(MAC)协议不能很好地满足大规模数据收集应用场合对数据速率和时延的要求。为解决该问题,提出一种基于多信道的快速数据收集MAC协议,结合多信道和时分多址复用消除节点间的干扰,在节点进行时槽分配时充分考虑节点半双工通信方式和数据收集公平性,尽可能地在空间上实现信道的复用,提高数据传输的并行性。在时序调度过程中,引入网络时延能耗平衡因子,实现不同应用场合对时延和能耗的平衡调节,增强协议的灵活性。仿真结果表明,该协议在大规模数据收集应用中具有高吞吐量、低时延的特性。

关键词: 无线传感器网络, 多信道, 时分多址, 数据收集, 介质访问控制, 时延能耗平衡因子

Abstract: Many single-channel and mufti-channel Medium Access Control(MAC) protocol can not satisfy the data rate and delay for large-scale data collection applications. To resolve this problem, a new multi-channel-based fast data collection MAC protocol is proposed, which takes advantage of mulch-channel and Time Division Multiple Access(TDMA) to eliminate interference between nodes, considers half-duplex communication mode and fairness of data collection during the time-slot assigning, and increases parallel transmissions by maximizing the spatial channel reuse. During the process of timing scheduling, the introduction of time delay and energy consumption balance factor enhances the flexibility of protocol, and it can be applied to different applications by adjusting the balance between time delay and energy consumption. Simulation results show that this protocol has the performance of high throughput and low time delay for large-scale data collection applications.

Key words: Wireless Sensor Network(WSN), multi-channel, Time Division Multiple Access(TDMA), data collection, Medium Access Control(MAC), time delay and energy consumption balance factor

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