基于无线传感器网络的协议序列研究

发布时间：2018-05-28 08:55

本文选题：协议序列 + 时隙非同步　；参考：《南京理工大学》2017年硕士论文

【摘要】：协议序列是一种具有汉明互相关特性的确定性二进制周期序列,用于无反馈冲突信道的信道接入控制,可以无需时钟同步为各网络节点提供吞吐率以及时延性能保障。UI序列是一种特殊的协议序列,能够基于时隙同步信道以及单包接收机制保证各节点在一个序列周期内至少成功发送一次数据,因此对于对传输时限和可靠性有严格要求的无线传感器网络有重要研究意义。本论文基于UI序列的设计目标,分别针对更灵活的数据传输要求、时隙非同步信道以及物理层多包接收机制,对序列构造以及序列平均时延性能进行进一步深入研究,具体工作包括:(1)提出能够确保每个节点基于时隙同步信道以及单包接收机制在一个序列周期内至少成功发送g个数据的g-UI序列,并对其构造方法以及理论平均传输时延进行研究。(2)针对能够基于时隙非同步信道以及单包接收机制保证各节点在一个序列周期内至少成功发送一次数据的CI序列,进行平均传输时延的理论分析。(3)提出能够基于时隙同步信道以及多包接收机制确保每个节点在一个周期内至少成功发送一次数据的UI序列,并对其序列构造以及理论平均传输时延进行研究。论文通过仿真实验验证了以上三项工作理论分析的准确性,并且表明各类序列相比于Aloha随机接入机制的时延性能具有优越性。
[Abstract]:Protocol sequence is a deterministic binary periodic sequence with the property of hamming cross-correlation, which is used for channel access control in non-feedback conflict channel. It is a special protocol sequence that can provide throughput and delay performance guarantee for each network node without clock synchronization. Based on slot synchronization channel and single packet receiving mechanism, each node can successfully transmit data at least once in a sequence cycle, so it is important to study wireless sensor networks with strict transmission time and reliability. Based on the design goal of UI sequence, this paper makes further research on sequence construction and average delay performance for more flexible data transmission requirements, time-slot asynchronous channel and physical layer multi-packet reception mechanism. The specific work includes: (1) A proposed g-UI sequence that can ensure that each node can transmit at least g data successfully in a sequence cycle based on slot synchronization channel and single packet receiving mechanism. The construction method and the theoretical average transmission delay are studied. (2) aiming at CI sequences which can transmit data successfully at least once in a sequence cycle based on time slot non-synchronous channel and single packet receiving mechanism. A theoretical analysis of average transmission delay. (3) A UI sequence based on slot synchronization channel and multi-packet receiving mechanism is proposed to ensure that each node successfully transmits data at least once in a period. The sequence construction and theoretical average transmission delay are studied. The accuracy of the theoretical analysis of the above three tasks is verified by simulation experiments, and it is shown that the delay performance of all kinds of sequences is superior to that of the Aloha random access mechanism.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP212.9;TN929.5

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