| 摘要: |
| 针对军事航空通信中部分信息传输对时效性和可靠性的严格要求以及传播时延不可忽略的问题,提出一种基于Turbo 编码、猝发技术、异步跳频和优先级区分的媒体接入控制协议(PFH_MAC).通过为高、低两种优先级分组提供不同的排队策略和接入网络权限,以提供差分服务能力.运用Markov 建模、排队理论、组合理论和离散Laplase 变换得到系统各项性能的数学表达式.仿真结果验证了理论推导的准确性及差分服务机制的有效性. |
| 关键词: 航空通信 跳频 自组织网络 媒体接入控制协议 差分服务 |
| DOI：10.3724/SP.J.1001.2013.04335 |
| 分类号: |
| 基金项目:国家自然科学基金(61202490);国防科技重点实验室基金(9140C020102110C0207) |
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| Media Access Control Protocol with Differential Service in Aeronautical Frequency-Hopping Ad Hoc Networks |
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WANG Ye-Qun, YANG Feng, HUANG Guo-Ce, ZHANG Heng-Yang, GUO Jian-Xin
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School of Information and Navigation, Air Force Engineering University, Xi'an 710077, China
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| Abstract: |
| According to the strict demands of timeliness and reliability during military aeronautical communications, and the question of whether propagation delay could not be ignored, a media access control protocol based on Turbo coding, burst technology, asynchronous frequency hopping and priority differentiation (PFH MAC) is proposed. It realizes differential service by providing different queuing strategies and accessing network authority for the high and low priority packets. All of the protocol performance expressions are deduced by Markov model, queuing theory, combination theory and discrete Laplase transformation. The simulation results verify that this theoretical analysis is accurate and the differential service is effective. |
| Key words: aeronautical communication frequency-hopping ad hoc network media access control protocol differential service |
