The implementation of a CDMA system on a FPGA-based software radio.
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Date
2000
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Abstract
This dissertation exammes two of the rlsing technologies in the world of wireless, cellular
communications - CDMA and the software radio. This thesis covers many of the issues related
to these two emerging field s of wireless communications, establish ing a theoretical framework
for the broader issues of implementation. To this end, the thesis covers many of the basic issues
of spread spectrum communications, in addition to establishing the need for, and defining the
role of, the software radio. Amalgamation of these two key areas of interest is embellished in a
presentation of many of the concerns of implementing a specific CDMA system on a particular
type of software radio - the Alcatel Altech Telecomms Flexible Radio Platform.
Of primary concern in the research methodology embraced in this thesis is the mastering of a
variety of analysis and implementation tools. Once the theoretical background has been
substantiated by current expositions, the thesis launches along a highly deterministic route.
First, the research issues are tested in a mathematical environment for suitability to the given
task. Second, an analysis of the appropriateness of the technique for the software radio
environment is undertaken, culminating in the attempted deployment within the hardware
environmenl. Rigorous testing of the input/output mapping characteristics of the hardware
instantiations created in this manner complements the research methodology with a viability
study. This procedure is repeated with many elements of the CDMA system design as they are
examined, simu lated, deployed and tested.
Description
Thesis (M.Sc.Eng.)-University of Natal, Durban, 2000.
Keywords
Code division multiple access., Wireless communication systems., Mobile communication systems., Spread spectrum communications., Field programmable gate arrays., Theses--Electronic engineering.