无线紫外光通信网络中区域覆盖算法研究

发布时间：2018-06-19 22:33

本文选题：紫外光通信 + 无线Ad　；参考：《西安理工大学》2017年硕士论文

【摘要】：无线紫外光(Ultraviolet,UV)通信是通过大气粒子散射实现非直视通信,且具有抗干扰能力强、保密性高等优势,但同时也存在通信距离短的不足。Ad hoc网络是一种多跳的、无中心的、自组织的无线网络,无固定的基础设施,所有节点都是移动的,且都能动态地以任意方式保持与其余节点的通信。无线紫外光通信与Ad hoc 网络各有其独特的通信优势,因此可将两者相结合使用。这样无线紫外光通信就可借助Ad hoc网络的多跳传输性能扩大其通信范围,很好的弥补了无线紫外光通信传输距离有限的劣势。在无线紫外Ad hoc网络的构建过程中,覆盖控制可有效地增强网络覆盖、降低网络部署成本、优化网络连通性等。本文以非直视紫外光通信技术为对象,对无线紫外Ad hoc网络中区域覆盖算法进行研究。具体的研究内容如下:(1)阐述了本课题的研究背景及意义,介绍了无线紫外光网络、覆盖控制和Ad hoc组网技术等相关概念及其H内外研究现状.(2针对无线紫外Ad hoc网络中节点位置的随机性,为增强无线紫外Ad hoc网络的覆盖性能,提出了基于遗传算法的分等级区域覆盖优化算法(GACOA).仿真结果表明在无线紫外Ad hoc 网络中使用GACOA算法可以快速、准确地构建满足需求的通信网络.同时,可使无线紫外Ad hoc网络的部署成本降低,且覆盖率高于随机部署.(3)讨论了三维无线紫外Ad hoc网络中发射及接收仰角、发射功率、数据速率、误码率、调制方式和噪声模型对通信网络性能(覆盖率和连通性)的影响,为了在有障碍物的场景下增强网络的覆盖率和连通性,设计了一种三维无线紫外Ad hoc网络的组网策略(UVNNS)。实验结果表明UVNNS是一种有效、可靠的组网方案,且在三维无线紫外Ad hoc网络中应优先使用PPM和泊松分布噪声模型。综上所述,本文所提出的无线紫外Ad hoc网络覆盖控制算法可在特定的目标区域里构建覆盖率较高、部署代价相对较低、连通性好的无线紫外Ad hoc通信网络。
[Abstract]:Wireless UV Ultraviolet (UV) communication is realized by atmospheric particle scattering, and has the advantages of strong anti-jamming ability and high confidentiality. However, there are also some disadvantages of short communication distance. Ad hoc network is multi-hop and centreless. Self-organized wireless network, no fixed infrastructure, all nodes are mobile, and can dynamically maintain communication with the rest of the nodes in any way. Wireless ultraviolet communication and Ad hoc network have their unique communication advantages, so they can be used in combination. In this way, the wireless ultraviolet communication can extend the range of wireless ultraviolet communication with the multi-hop transmission performance of Ad hoc network, which makes up for the disadvantage of the limited transmission distance of wireless ultraviolet communication. In the process of constructing wireless ultraviolet Ad hoc network, coverage control can effectively enhance network coverage, reduce network deployment cost, optimize network connectivity and so on. In this paper, the area coverage algorithm in wireless UV Ad hoc networks is studied. The specific research contents are as follows: (1) the research background and significance of this subject are expounded, and the wireless ultraviolet light network is introduced. Related concepts such as coverage control and Ad hoc networking technology, as well as the current research situation inside and outside H, aiming at the randomness of node positions in wireless ultraviolet Ad hoc networks, to enhance the coverage performance of wireless ultraviolet Ad hoc networks. A hierarchical area coverage optimization algorithm based on genetic algorithm (GA) is proposed. Simulation results show that using GACOA algorithm in wireless ultraviolet Ad hoc networks can quickly and accurately construct communication networks that meet the requirements. At the same time, the deployment cost of wireless UV Ad hoc network can be reduced, and the coverage is higher than that of random deployment. The elevation angle, transmission power, data rate and bit error rate of transmitting and receiving in 3D wireless ultraviolet Ad hoc network are discussed. The effect of modulation mode and noise model on the performance of communication network (coverage and connectivity) is studied. In order to enhance the coverage and connectivity of the network in the presence of obstacles, a three dimensional wireless UV Ad hoc network networking strategy is designed. The experimental results show that UVNNS is an effective and reliable networking scheme, and PPMs and Poisson distributed noise models should be preferred in 3D wireless UV Ad hoc networks. To sum up, the proposed coverage control algorithm for wireless ultraviolet Ad hoc networks can construct wireless ultraviolet Ad hoc communication networks with high coverage, relatively low deployment cost and good connectivity in specific target areas.
【学位授予单位】：西安理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.1

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