西安电子科技大学学报 ›› 2016, Vol. 43 ›› Issue (3): 131-136.doi: 10.3969/j.issn.1001-2400.2016.03.023

• 研究论文 • 上一篇    下一篇

多跳无线网络跨层自适应协同TDMA协议

黄绍城1;马林华1;蔡钊1;张嵩1;茹乐1;田雨2   

  1. (1. 空军工程大学 航空航天工程学院,陕西 西安  710038;
    2. 95876部队,甘肃 张掖  734100)
  • 收稿日期:2015-03-22 出版日期:2016-06-20 发布日期:2016-07-16
  • 通讯作者: 黄绍城
  • 作者简介:黄绍城(1990-),男,空军工程大学硕士研究生, E-mail: huangshaocheng606@163.com.
  • 基金资助:

    国家自然科学基金资助项目(61472442);航空科学基金资助项目(20130596008,20145596025);综合业务网理论及关键技术国家重点实验室开放研究资助项目(ISN15-13)

Cross-layer adaptive cooperative TDMA protocol for multi-hop wireless networks

HUANG Shaocheng1;MA Linhua1;CAI Zhao1;ZHANG Song1;RU Le1;TIAN Yu2   

  1. (1. Aeronautics and Astronautics Engineering College, Air Force Engineering Univ., Xi'an  710038, China;
    2. No. 95876 Unit, Zhangye  734100, China)
  • Received:2015-03-22 Online:2016-06-20 Published:2016-07-16
  • Contact: HUANG Shaocheng

摘要:

针对多跳无线网络中信道衰落和业务突发性导致的信道浪费与超负载问题,提出了多跳无线网络跨层自适应协同时分多址接入协议.该协议通过利用路由层周期性更新拓扑的特点,获知信道的中断概率和位置信息,在不增加额外协商开销和保证信息传输效率的前提下自适应判断是否作为协同中继,从而减少了等待延时,提高了信道利用率.通过建立跨层自适应协同时分多址接入协议的马尔科夫链数学分析模型,从理论上分析了协议在吞吐量、丢包率和延时方面的性能.理论和仿真结果显示,与传统时分多址接入协议相比, 提升了网络性能,吞吐量最大增加了36%,延时降低了40%.

关键词: 信道浪费, 无线网络, 跨层, 自适应, 协同, 马尔科夫链

Abstract:

Aiming at signal fading in the Rayleigh channel and channel waste or overload caused by the sudden traffic transmission in multi-hop wireless networks, a cross-layer adaptive cooperative time division multiple access protocol(CAC-TDMA) for multi-hop wireless networks is proposed. By taking advantage of the routing layer characteristics that periodically update topology, nodes can get the channel outage probability and position, determine whether they are cooperative relays themselves by no additional consultations overhead, which can decrease the waiting delay and increase channel utilization. To make a numerical analysis of the throughput, packet drop rate and delay of CAC-TDMA, a Markov chain analysis models of CAC-TDMA is constructed. Numerical and simulation results show that the proposed protocol can guarantee better performance than the conventional TDMA, that is, the maximum increase of throughput is 36% and the maximum decrease of delay is 40%.

Key words: channel waste, wireless networks, cross-layer, adaptive, cooperative, Markov chain