一种跳频MAC协议的自适应机制

doi:10.3969/j.issn.1001-2400.2013.05.013

J4 ›› 2013, Vol. 40 ›› Issue (5): 78-85.doi: 10.3969/j.issn.1001-2400.2013.05.013

一种跳频MAC协议的自适应机制

王叶群;叶向阳;戚云军;黄国策;张衡阳

(空军工程大学电讯工程学院，陕西西安 710077)

收稿日期:2012-05-18 出版日期:2013-10-20 发布日期:2013-11-27
通讯作者: 王叶群
作者简介:王叶群(1985-)，男，空军工程大学博士研究生，E-mail: wangyequnhao@163.com．
基金资助:
国家自然科学基金资助项目(61202490)；航空科学基金资助项目(20095596016)；陕西省自然科学基金资助项目(2010JQ8010)；空军工程大学博士创新基金资助项目(200901)

Adaptive mechanism for the frequency hopping MAC

WANG Yequn;YE Xiangyang;QI Yunjun;HUANG Guoce;ZHANG Hengyang

(Inst. of Telecommunication Eng., Air Force Eng. Univ., Xi'an 710077， China)

Received:2012-05-18 Online:2013-10-20 Published:2013-11-27
Contact: WANG Yequn

摘要/Abstract

摘要：

根据跳频媒体接入控制协议(FH_MAC)中“业务负载—系统吞吐量”呈抛物线的关系,提出一种自适应协议AFH_MAC．该协议通过设置分组接入网络的权限来控制网络中业务负载的数量，使得系统吞吐量最大，适合于航空自组网中高时效性业务的传输．运用排队理论、组合理论和离散拉普拉斯变换，得到AFH_MAC的系统吞吐量、分组成功传输概率和分组端到端时延均值数学表达式．仿真结果表明:FH_MAC时延性能优于TDMA和IEEE 802.11 DCF协议的时延性能，在轻负载情况下FH_MAC系统吞吐量和分组成功传输概率均优于ALOHA协议的．AFH_MAC的理论计算结果与仿真结果一致，且自适应机制能正常工作．

关键词: 航空自组网, 媒体接入控制协议, 跳频, 时延, 吞吐量, 自适应

Abstract:

For the frequency hopping media access control protocol (FH_MAC), there is a parabola relationship between throughput and traffic, and then an adaptive FH_MAC (AFH_MAC) is proposed for the maximum throughput, which is fit for timeliness traffic in aeronautical ad hoc networks. The paper works out the expression for the throughput, success transmission probability and average time delay based on the queuing theory, combination theory and discrete laplase transformation. The results show that, the time delay performance of the FH_MAC is better than that of the time division multiple access (TDMA) and IEEE 802.11 distributed coordination function (DCF), that the throughput and success transmission probability of the FH_MAC are higher than that of the ALOHA when the traffic load is low, and that the theoretic analysis of the AFH_MAC is in accordance with simulation, and the adaptive mechanism works well.

Key words: aeronautical ad hoc networks, media access control protocol, frequency hopping, time delay, throughput, adaptive

中图分类号:

TP393.0

王叶群;叶向阳;戚云军;黄国策;张衡阳. 一种跳频MAC协议的自适应机制[J]. J4, 2013, 40(5): 78-85.

WANG Yequn;YE Xiangyang;QI Yunjun;HUANG Guoce;ZHANG Hengyang. Adaptive mechanism for the frequency hopping MAC[J]. J4, 2013, 40(5): 78-85.

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一种跳频MAC协议的自适应机制

Adaptive mechanism for the frequency hopping MAC

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