自由空間光通信课程设计.docx

兰州交通大学课程设计 中文题目：自由空间光通信网络拓扑形成及路由算法研究 英文题目：Free Space Optical Communication NetworkTopolopy Formation and Routing Algorithm Research课 程： 现代传输技术学 院：电子与信息工程学院专 业： 通 信 工 程姓 名： 任一峰学 号： 201109646 指导教师： 高 丽 二 零 一 四 年 七 月摘 要自由空间光通信（free space optical communication FSO）是一种采用红外激光承载高速信号的无线传输技术，具有成本低、容量大、设计简单、接入方便等优势。FSO网络既具有传统移动Ad Hoc网络的自组织性、独立组网能力、无中心抗毁性强等优点，又能利用FSO高质量的定向无线传输特性，实现网络物理层的收发控制。因此，在无线通信领域，FSO网络技术受到了越来越多的关注。本文在研究传统移动Ad Hoc网络拓扑及路由的基础上，结合当前FSO网络技术发展前沿，深入研究了FSO网络的初始化算法。主要分析了一种分布式拓扑形成算法，它通过迭代建立连接，直至形成一颗树形拓扑结构，目的是在军事应用中提供快速连通性。本文对该算法在Visual C++环境下进行模拟与仿真，并对其结果进行分析，提出改进方案，最终得到了最优拓扑。在此基础上又提出了一种有效的路由算法，并进行了图解说明。最后通过对算法的正确性论证，得出对于度受限的FSO网络初始化，自下而上最小度生成树算法是首选方法。关键词：自由空间光通信，初始化算法，生成树，路由算法AbstractFree space optical communication （FSO） is wireless transmission technology that signal convey by infrared laser, It has low cost but great capacity it is designed to be simple and expediently accessed.FSO network has the same advantages with traditional mobile Ad Hoc network self-organization, independent networking capacity, no center, and invulnerability, also taking advantage of FSO wireless transmission characteristics of high-quality directional for physical layer transceivers control.It has attracted more and more attention in wireless communication.In this paper, based on the study of traditional Mobile Ad Hoc network topology and routing.Combined with the cutting-edge development of the current FSO network technology, FSO network initialization algorithm is researched deeply Mainly analyzes a distributed topology formationalgorithm ,which form a connected topology by iterations.This algorithm is designed to ensure “fast connectivity“ rather than optimizing other metrics.The simulation environment is implemented in Visual C++, but topology obtained is not ideal, This paper proposes the improvement program and eventually obtain the optimal topology.Also proposed an efficient routing algorithm, and had illustrated instructions.Finally, proof of correctness of the algori