摘要： 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。

关键词: 认知无线电, 动态频谱, 仿真平台, 跨层设计, 无线Mesh网

Abstract: 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.

Key words: cognitive radio, dynamic spectrum, simulation platform, cross-layer design, Wireless Mesh Network(WMN)

中图分类号: 

• TN925