Title :
Performance enhancement of DS-CDMA microcellular networks with adaptive antennas
Author :
Tsoulos, George V. ; Beach, Mark A. ; Swales, Simon C.
Author_Institution :
Centre for Commun. Res., Bristol Univ., UK
Abstract :
This paper considers the performance of a DS-CDMA system which employs adaptive antenna technology at the base station site of a microcell. By utilising the capability of ray-tracing to provide the complex channel impulse response, a new ray-based simulation methodology for an adaptive antenna in a DS-CDMA system is presented. Results for a typical microcellular environment highlight the behaviour of the adaptive antenna. Finally, with the help of a Monte-Carlo type DS-CDMA capacity analysis, the potential performance enhancement and the sensitivity of the system upon the misspointing of the main beam, are evaluated
Keywords :
Monte Carlo methods; adaptive antenna arrays; antenna radiation patterns; cellular radio; code division multiple access; digital simulation; land mobile radio; multipath channels; pseudonoise codes; ray tracing; simulation; spread spectrum communication; transient response; DS-CDMA microcellular networks; Monte-Carlo type analysis; adaptive antennas; base station site; capacity analysis; complex channel impulse response; main beam; microcell; misspointing; performance enhancement; ray-based simulation methodology; ray-tracing; sensitivity; Adaptive arrays; Adaptive systems; Antenna accessories; Directive antennas; Microcell networks; Mobile communication; Modulation coding; Multiaccess communication; Performance analysis; Ray tracing;
Conference_Titel :
Vehicular Technology Conference, 1996. Mobile Technology for the Human Race., IEEE 46th
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3157-5
DOI :
10.1109/VETEC.1996.501479
