无线自组织网络多信道路由协议研究

发布时间：2018-04-28 09:02

本文选题：Ad-Hoc网络 + MIMCS方案　；参考：《南昌航空大学》2014年硕士论文

【摘要】：近年来，Ad-Hoc网络普遍应用于交通运输、抗震救灾、医疗保健、环境监测等方面，已逐步渗入到人们的日常生活中。因此人们需要更高的Ad-Hoc网络通信量，单信道Ad-Hoc网络由于受限于系统吞吐量和网络带宽，已很难满足较大通信吞吐量的要求。然而，由于多信道网络环境允许相邻节点在多条路径上同步通信，且能够避免信道冲突，所以多信道无线自组织网络能够显著提高网络吞吐量。因此，对适合多信道Ad-Hoc网络环境路由协议的研究是至关重要的，也是提高网络容量的关键因素，这对促进无线自组织网络的广泛应用具有重大的现实意义。本文在基于Ad-Hoc网络典型单信道路由协议NS-2仿真比较的基础上，搭建多信道多接口路由协议仿真平台，并对典型多信道路由策略方案进行仿真分析，充分利用链路资源、网络资源、用户资源构建Ad-Hoc网络多信道路由策略，在此基础上提出了适合多信道多接口无线Ad-Hoc网络环境的综合路径度量策略SPM和SM-AOMDV协议，并在多信道多接口仿真平台上对其分别进行不同场景的仿真分析，达到适应网络环境、提高网络容量、优化端到端路由性能的目标。首先，对Ad-Hoc网络及其路由协议进行全面的认识，分析介绍NS-2网络仿真流程及用于评价AODV、DSDV、DSR路由协议性能的评价指标，然后对这三种典型单信道Ad-Hoc网络路由协议仿真比较，分析出适合Ad-Hoc网络的路由协议，构建路由优化目标。其次，构建Ad-Hoc网络多信道多接口仿真平台，并在该仿真平台上，对典型多信道路由策略M-AOMDV进行仿真分析。同时分析比较现有的多信道多接口解决方案，着重介绍适合无线Ad-Hoc网络的MIMCS方案，为适合Ad-Hoc网络多信道多接口路由协议的设计奠定了基础。最后，本文提出了适合多信道多接口无线Ad-Hoc网络环境的综合路径度量策略SPM，，将其结合MIMCS方案一同应用到AOMDV协议中便形成了适合多信道多接口无线Ad-Hoc网络环境的SM-AOMDV协议。该策略在AOMDV协议中综合考虑了跳数、链路干扰、同一路径不同链路间的信道干扰CIC以及信道切换代价CSC四个因素，通过将SM-AOMDV协议与典型多信道路由协议M-AOMDV仿真对比，证明了SM-AOMDV协议和SPM策略的优越性。
[Abstract]:In recent years, Ad-Hoc networks have been widely used in transportation, earthquake relief, medical care, environmental monitoring and other aspects, which have gradually penetrated into people's daily life. Therefore, people need higher traffic in Ad-Hoc networks. Because of the limitation of system throughput and network bandwidth, single-channel Ad-Hoc networks are difficult to meet the requirements of larger communication throughput. However multi-channel wireless ad hoc networks can significantly improve network throughput because adjacent nodes are allowed to communicate synchronously over multiple paths and channel conflicts can be avoided in a multi-channel network environment. Therefore, the research of routing protocols suitable for multi-channel Ad-Hoc network environment is very important and the key factor to improve the network capacity. It is of great practical significance to promote the wide application of wireless ad hoc networks. Based on the simulation and comparison of typical single channel routing protocol (NS-2) in Ad-Hoc network, the simulation platform of multi-channel and multi-interface routing protocol is built in this paper, and the typical multi-channel routing strategy scheme is simulated and analyzed to make full use of link resources. Network resources and user resources are used to construct multi-channel routing strategy for Ad-Hoc network. Based on this, a comprehensive path measurement strategy, SPM and SM-AOMDV protocol, is proposed for multi-channel and multi-interface wireless Ad-Hoc network environment. In order to adapt to the network environment, improve the network capacity and optimize the end-to-end routing performance, the simulation analysis of different scenarios is carried out on the multi-channel and multi-interface simulation platform. First of all, the paper makes a comprehensive understanding of Ad-Hoc network and its routing protocols, analyzes and introduces the simulation flow of NS-2 network and the evaluation indexes used to evaluate the performance of NS-2 network routing protocols, and then compares these three typical single-channel Ad-Hoc routing protocols by simulation. The routing protocol suitable for Ad-Hoc network is analyzed and the route optimization target is constructed. Secondly, the multi-channel and multi-interface simulation platform of Ad-Hoc network is constructed, and the typical multi-channel routing policy M-AOMDV is simulated and analyzed on the platform. At the same time, the existing multi-channel and multi-interface solutions are analyzed and compared, and the MIMCS scheme suitable for wireless Ad-Hoc network is introduced emphatically, which lays a foundation for the design of multi-channel and multi-interface routing protocol suitable for Ad-Hoc network. Finally, this paper proposes a comprehensive path measurement strategy for multi-channel and multi-interface wireless Ad-Hoc network environment, which is combined with MIMCS scheme to form a SM-AOMDV protocol suitable for multi-channel and multi-interface wireless Ad-Hoc network environment. The strategy takes into account four factors in AOMDV protocol, such as hop number, link interference, channel interference CIC between different links of the same path, and channel switching cost CSC. By comparing SM-AOMDV protocol with M-AOMDV, a typical multi-channel routing protocol is simulated and compared. The superiority of SM-AOMDV protocol and SPM strategy is proved.
【学位授予单位】：南昌航空大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.04

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