This paper considers the performance of a DS-CDMA system which employs adaptive antenna technology at the base station site, for both the umbrella and the micro-cells in a mixed cell structure. The possible advantages from such a deployment are discussed before presenting some initial results from a new adaptive antenna simulation model. This exploits the capabilities of ray tracing to generate the complex channel impulse response and provide the angle of arrival of each received ray. The results illustrate the potential benefits of adaptive antenna technology when used in conjunction with DS-CDMA.
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