基于软件无线电的COFDM通信系统实现

In order to improve the design flexibility and data transmission reliability of wireless communication system, by using Turbo codes as channel coding scheme, a Coded Orthogonal Frequency Division Multiplexing (COFDM) wireless communication system based on the software defined radio platform composed of the Universal Software Radio Peripheral (USRP) and a general purpose computer is designed and implemented. Simulation and test results demonstrate that adopting the COFDM technique can effectively combat fading and noise, reduce the transmission frame error rate, thus improve data transmission reliability.