Date of Award


Document Type



Edith Cowan University

Degree Name

Bachelor of Engineering Honours


Faculty of Science, Technology and Engineering

First Supervisor

Dr Tadeusz Wysocki

Second Supervisor

Dr Hans Juergen Zepernick


An implementation of a Code Division Multiple Access (CDMA) transmitter has been developed using SIMULINK and MATLAB. This transmitter uses a modified carrier in modulation. This modified carrier, which is frequency modulated, has been shown to reduce intersymbol interference (ISI) and multiple access interference (MAl). These two types of interference are caused by multipath propagation which results in delayed versions of the original signal. The benefits of this modified modulation technique are apparent when there are delays involved. The spreading sequences used are 7- bit Gold codes which allow a maximum of nine users. The initial trials of the transmitter indicate that it is functioning correctly.