Wong, Richard S. C.2024-08-152024-08-1519971997https://hdl.handle.net/1828/20185This dissertation investigates two types of diversity techniques for use in direct sequence code division multiple access wireless communication networks. The first diversity system examined is the maximal-ratio combiner (MRC). Two variations of the MRC are compared over a generalized fading channel. The results reveal that the pre­selection MRC outperforms finite tap decisions MRC. The combination of a strong specular component and a heavily decayed multipath intensity profile may result in only a minimal degradation of the receiver performance for a finite tap decisions MRC, and pre-selection MRC over the optimal MRC. Time diversity is the second technique examined. Both Poisson and self-similar traffic models are examined for packet data transmiss ion . The results show that the self-similar traffic has a higher normalized throughput than the Poisson traffic . Also, with a reduced number of fingers in the rake receiver, the performance reduction of the systems with a flatter MIP is higher than that of a more steeply decaying MIP.82 pagesAvailable to the World Wide WebThesis