Prototyping and Evaluation of Software Defined Radio using GNU Radio-USRP

摘要

Recently, it is found that there are quite a large number of researches utilizing GNU Radio platform for the evaluation purpose. It is because GNU Radio is basically built on open source software which means that anyone can download the software and use it together with low cost hardware called USRP and off-the-shelf computers. It offers large amount of library for physical layer functions, which makes us easy to configure our own evaluation system with minimum effort on hardware. In this article, the concept, architecture of software/hardware and features and limitations will be reviewed. Moreover some of the latest researches on software defined radio and cognitive radios utilizing GNU Radio will be introduced.