Analysis of CDMA Wireless Comm Systems

Student: Aaron Chong

Supervisor: Dr. John Homer

Category: Electrical Engineering Thesis Project

3rd Generation Wireless (3G) is the future of wireless communication system. It offers high transfer rate as well as a wide bandwidth. This will revolutionize the use of wireless devices and introduce new innovative products into the market. All this is possible based on the Code Division Multiple Access (CDMA) technology.

CDMA uses code to share the limited channel with multiple users. Currently the only CDMA system implement is the IS-95. In the coming years other wireless CDMA system will be impledmented such as CDMA 2000. With CDMA becoming the standard in wireless communications system, it is important to examine multipath effects and thermal noise in a CDMA system.

A CDMA system uses Walsh codes to allocate a single channel to a user and Psuedo Noise (PN) sequence to spread a signal. A three arm rake receiver is used to reduce multipath effects in a signal. A Matlab model of the CDMA system is created to examine these in detail.

Poster Presentation (PDF)

Thesis Document (PDF)