计算机应用 ›› 2012, Vol. 32 ›› Issue (04): 924-926.

• 网络与通信 • 上一篇    下一篇

基于DRAND算法的漏斗-MAC协议

朱秀丽1,李影洁1,2   

  1. 1. 周口师范学院 计算机科学与技术学院,河南 周口 466099
    2. 周口师院
  • 收稿日期:2011-10-08 修回日期:2011-12-07 发布日期:2012-04-20 出版日期:2012-04-01
  • 通讯作者: 朱秀丽
  • 作者简介:朱秀丽(1976-),女,河南周口人,讲师,硕士,主要研究方向:无线网络设及计仿真、多媒体;
    李影洁(1978-),女,河南周口人,实验师,硕士,主要研究方向:计算机网络。
  • 基金资助:
    河南省自然科学研究项目;河南省科技厅基础与前沿技术研究计划项目

Funneling-MAC protocol based on DRAND algorithm

ZHU Xiu-li1,LI Ying-jie1,2   

  1. 1. School of Computer Science and Technology, Zhoukou Normal University, Zhoukou Henan 466099, China
    2.
  • Received:2011-10-08 Revised:2011-12-07 Online:2012-04-20 Published:2012-04-01
  • Contact: ZHU Xiu-li

摘要: 针对漏斗-MAC协议的不足,给出一种分布式时隙分配(DRAND)算法改进方案。在基于集中式时分多址(TDMA)调度算法的漏斗-MAC协议基础上引入分布式时隙分配方案,保证节点两跳范围内的时隙没有重叠,从而能最大限度地避免数据干扰和冲突。NS-2仿真表明,改进的协议能进一步减少系统能量消耗,维持较高的信道利用率。

关键词: 漏斗-MAC, 分布式时隙分配算法, 时分多址, 分布式, NS-2

Abstract: Concerning the disadvantage of funneling-MAC protocol, this paper gave an improved proposal of DRAND algorithm. Based on the centralized Time Division Multiple Access (TDMA) scheduling algorithm of funneling-MAC protocol, it introduced the DRAND scheme, which guaranteed nodes did not overlap within the time slots in two-hop range, so it could greatly avoid interference and collision. The NS-2 simulation results show that the improved protocol can effectively reduce system power consumption, and maintain higher channel utilization.

Key words: funneling-MAC, distributed randomized algorithm, Time Division Multiple Access (TDMA), distributed, NS-2