无线Mesh认知网络仿真研究

Research on Simulation of Wireless Mesh Cognitive Network

介绍一种基于C++的认知无线电仿真平台,针对平台中广度优先路由算法相对单一的问题,根据跨层设计思想,提出一种动态频谱分配的路由算法,实现吞吐量最大化、动态频谱分配和路由传输功耗控制。仿真结果表明,该算法能有效提高认知用户接入率、节点传输功率和端到端吞吐量等方面的性能。

Due to the scarcity and imperfection of cognitive radio software simulation platform,this paper analyzes a simulation platform in depth,and proposes a dynamic routing algorithm for spectrum allocation based on cross-layer design,aiming to solve the deficiency of the Breadth-First Search（BFS） algorithm applied by the platform.In conclusion,through a series of simulations carried out by the updated simulation platform which adopts the new routing algorithm,it makes a better improvement in the accessing,transmission power and end-to-end throughput of the cognitive user.