3 research outputs found

    N-time Division Multiple Access Dynamic Slot Allocation Protocol Based on I-Sequential Vertex Coloring Algorithm

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    针对移动自组网中介质访问控制层协议的特性,结合实际工程需求,基于I-序列顶点着色算法,提出一种N-时分多址动态时隙分配协议。对协议的帧结构、交互过程及动态时隙分配算法进行分析。在NS2软件上的仿真结果表明,该协议的时隙利用率、吞吐量、平均时延、公平性等均优于IEEE802.11和时分多址协议。According to the characteristics of Medium Access Control(MAC) layer protocol in mobile Ad Hoc network,combining with the actual engineering requirements,N-time Division Multiple Access(TDMA) dynamic slot allocation protocol based on I-sequential Vertex Coloring(SVC) algorithm is proposed.The protocol frame structure,interaction and dynamic slot allocation algorithm are specifically analysed and described.This protocol is simulated under NS2 Jesuits show that the algorithm has better performance on high slot utilization throughput,average latency,fairness and other parameters than IEEE802.11 and Time Division Multiple Access(TDMA) protocols.厦门大学海西通信工程技术中心开放基金资助项目(HXCXJJ2014-012

    Research and Simulation of slot allocation in broadband wireless ad hoc network MAC protocol

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    移动Adhoc网络是一种全新的移动通信技术,它是一种无中心自组织的多跳无线通信网络,它能随时随地的组建临时性网络,不需要其它已有的固定设施。为了能够实现无线自组织网络的正常运行,面临许多挑战和问题,其中信道接入(MediaAccessControl,MAC)协议的设计是Adhoc面临的关键技术问题。因此,提高MAC层协议性能对整个网络性能的提高具有重要的影响。本文以宽带无线自组网MAC层协议为研究目标,对竞争机制的协议和基于TDMA的时隙分配的协议进行深入研究,并对TDMAMAC协议进行设计和改进。 首先,本文调研了国内外Adhoc网络MAC协议的研究现状,主要分析了基于TDMA时隙分配的M...Mobile Ad hoc network is a new mobile communication technology,it is a center self-organizing multi-hop wireless communication network,it do not need other existing fixed facilities,it can set up a temporary network anytime and anywhere.In order to enable normal operation of wireless ad-hoc network,it faces many challenges and problems,which channel access(Media Access Control,MAC)protocol design ...学位:工程硕士院系专业:信息科学与技术学院_工程硕士(电子与通信工程)学号:2312012115288

    Surveys on MAC Protoclo in Ad Hoc Network

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    在移动Ad Hoc网络中,媒体接入层的性能(Media Access Control,MAC)对整个网络性能的提高具有重要的影响,对该层协议的设计是Ad Hoc面临的关键技术问题。本文在充分调研了国内外Ad Hoc网络MAC协议的研究现状基础上,从信道的分离与接入、拓扑、功率、传输主动方式、业务负载和可扩展性、范围、层次设计等7个方面对现有协议进行分类。并探讨了常见的协议验证分析手段与仿真技术,对衡量MAC层协议的主要性能指标作进一步的分析,最后对MAC层协议研究热点与发展趋势进行综述与展望。In mobile Ad Hoc network,the performance of the MAC( Media Access Control) layer protocol has a significant impact on improving overall network performance. Thus,the design of protocol is the key technical issues facing the Ad Hoc. In this article,we survey and analyze the broadband wireless Ad Hoc network MAC layer protocol. We classify seven key features: channel separation and access,topology,power,transmission initiation,traffic load and scalability,hierarchical design and range. We explore common verification,analysis tools and simulation technology. Then,we make a further analysis of the main performance indicators of MAC layer protocol. Finally,we discusse and reviewe the research hotspot and development trend of MAC layer protocol.海西通信工程技术中心开放课题“无线动态TDMA网络的时隙分配技术”(HXCXJJ2014-012);; 闽南师范大学教改项目“基于物联网的嵌入式系统课程群建设”(JG201519);; 2015年福建省中青年教师教育科研项目“基于对数微分法的多电容同步测量系统研究”(JA15319
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