| Summary: | 碩士 === 國立臺灣大學 === 電機工程學研究所 === 91 === We are now in an epoch of mobile communication. According to the report of newspaper, the ratio of people owning mobile phones in Taiwan has reached 93%. Among numerous wireless communication technologies, WCDMA (Wideband Code Division Multiple Access) is a more advanced technology. The specification of WCDMA has been set by Third Generation Partner Project (3GPP) organization. The main feature of WCDMA is the Orthogonal Variable Spreading Factor (OVSF) codes that are used to preserve the orthogonality between different physical channels, and furthermore they can reduce the inference of AWGN inference and promote the ability of anti-jamming.
High Speed Downlink Packet Access (HSDPA) is a more spectral efficient method that can transport considerable amount of data (image, music, etc.) from base stations to mobile phones according to the latest 3GPP specifications. There will be some illustrations and discussions on its influence on communication quality, theory and function of some receiver modules, and procedure of system design in this thesis. Then we will enter the main subject, and discuss how to design a 64QAM baseband receiver.[1]
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