Research On The Exchange Network Structure Based On Software Radio

Software radio is a new technique that combines software with hardware and rose in the nineties of the twentieth century. It can well solve the problem that the radio communication system based on hardware can't suitably develop because of the fast update of the radio communication product, and the difficulty in mutual connect between many kinds of communication system and different kinds of communication protocols. So software radio has become one of the key techniques in the third generation communication system.This paper did research in a most famous software radio structure in recent years, it is called exchange network structure, and provided an improved exchange network structure-compound exchange network structure. It adopts ADSP SHARC disposal system and includes two processors such as DSP (TI) and ADSP in the exchange network platform. It has better ability of real time disposal and efficiency of network data transmission and parallel system.This paper discussed some common structure and capability of software radio. By comparison we obtained that exchange network structure was more suitable for the design idea of software radio. We provided an improved structure based on exchange network structure. Meanwhile by software simulation we obtained its parameters. At last, the paper analyzed the kernel device of exchange network structure-the network adapter's design principle and ADSP SHARC connection into the network and some network protocols of ADSP SHARC.