| 摘要: |
| 针对密度非均匀Ad Hoc网络,提出了一种基于预留的时隙混合类MAC——RTV协议.该协议将业务区分为预留和非预留,以提供不同质量的接入传输服务.通过时延调整预留算法来满足多种预留业务的不同时延要求.同时,通过预留机制解决了TDMA技术不适应于密度非均匀网络的问题.最后,通过数学建模分析得到了协议的时隙利用率和系统吞吐量.仿真实验结果表明:在密度非均匀的大型Ad Hoc网络中,RTV协议可以为混合业务的传输提供时延保障,并在时隙利用率和吞吐量方面呈现出较好的性能. |
| 关键词: 密度非均匀ad hoc网络 媒体接入控制协议 实时业务 预留 延时调整 |
| DOI：10.13328/j.cnki.jos.004552 |
| 分类号: |
| 基金项目:陕西省自然科学基金(2009JM8001-4);陕西省电子信息系统集成重点实验室重点基金(2011.ZD01) |
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| Design and Analysis of Kinematic Delay MAC for Non-Uniform Ad Hoc Network |
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WEI Xiao-Long, LI Jian-Hai, XU Hao-Jun, YANG Hai-Dong
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Institute of Aerospace Engineering, Air Force Engineering University, Xi'an 710038, China
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| Abstract: |
| A hybrid slot MAC protocol based on reservation mechanism for multi-density ad hoc network, short for RTV, is presented in this paper. The service is distinguished into the reservation and the contention-free in RTV for providing different qualities of access transportation service. The variable delay reservation algorithm is adapted to support different time-delay services, which solves the problem that TDMA isn't applicable to the multi-density network. The throughputs and slot-utilization rate of the RTV are obtained. The simulation results indicate that the RTV presents good performance on throughputs and slot-utilization rate in large multi-density network. |
| Key words: non-uniform ad hoc network MAC protocol real-time service reservation variable delay |
