Design of path searcher for WCDMA receiver and implementation in DSP
Kai Chen · Diva portal (Dalarna University Library) · 2008
Code Division Multiple Access (CDMA) is a widely used wireless access technology that requires completing huge correlations in real-time, especially at the receiver. Most baseband receivers are hence implemented in hardware to fit this requirement. Meanwhile, the wireless technologies develop so quickly that implementation has to be modified to add new development. This kind of modification is especially costly in hardware design. The purpose of this thesis is to take advantage of Digital Signal Processors (DSP) and to complete a software solution of Path search in Wideband Code Division Multiple Access (WCDMA) receivers. In general, the DSP still can not achieve the same powerful calculation ability as hardware solutions and we will try to modify the inherent algorithms if required. The purpose is to design the algorithm and implement a path searcher following the WCDMA standard. Path searcher is one of the main components in WCDMA receiver. It can be use to detect the many signals in WCDMA channel.