Title :
Sectorized antenna system for CDMA cellular networks
Author :
Mahmoudi, Manouchehr ; Sousa, Elvino S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
Application of cell sectorization with small sectors as a means to improve the CDMA system signal to interference ratio (SIR) and hence capacity is investigated. To reduce the inter-sector handoff overheads, asynchronous CDMA with mobile transparent handoffs are considered. The system performance in terms of average and fading range of the SIR is evaluated and compared with a conventional omnidirectional RAKE receiver. The effects of system and environment parameters on the performance are investigated
Keywords :
antenna arrays; array signal processing; cellular radio; channel capacity; code division multiple access; direction-of-arrival estimation; fading; land mobile radio; pseudonoise codes; radio networks; radio receivers; radiofrequency interference; spread spectrum communication; CDMA cellular networks; DS-CDMA; antenna patterns; asynchronous CDMA; average SIR; dense urban areas; digital radio; environment parameters; fading range; intersector handoff overheads; mobile transparent handoffs; omnidirectional RAKE receiver; rural areas; sectorized antenna system; signal to interference ratio; system capacity; system parameters; system performance; Application software; Base stations; Diversity reception; Fading; Filtering; Frequency; Interference; Land mobile radio cellular systems; Multiaccess communication; Switches;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.596308
