Adaptive antennas for third generation DS-CDMA cellular systems

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 as well as providing propagation measurements in order to validate some of the claims. By exploiting the capabilities of ray tracing to provide the complex channel impulse response, a new adaptive antenna simulation model is presented along with some initial results. These illustrate the potential benefits of adaptive antenna technology when used in conjunction with DS-CDMA.