Title :
Hot-beam traffic relief for cellular SBF multi-beam array antenna CDMA systems
Author :
Kang, Hyunduk ; Sung, Seokjin ; Koo, Insoo ; Kim, Kiseon
Author_Institution :
Dept. of Inf. & Commun., Gwanju Inst. of Sci. & Technol., Gwangju, South Korea
Abstract :
We analyze the performance of the beam reassignment (BR) method, which provides a load sharing to mitigate the hot-spot beam, named hot-beam, of switched beamforming (SBF) array antenna CDMA systems. As a result, it is shown that the feasible range of the traffic load ratio of the hot-beam to the lightly loaded beam, where the total blocking probability of the cell is below 1%, is increased at least 9.49%, 15.19%, and 6.72% when the main beamwidth is 60°, 30°, and 15°, respectively.
Keywords :
antenna arrays; array signal processing; cellular radio; code division multiple access; probability; quality of service; telecommunication congestion control; telecommunication traffic; CDMA systems; beam reassignment method; blocking probability; cellular SBF multi-beam array antenna; hot-beam traffic relief; hot-spot beam; load sharing; performance; switched beamforming; traffic load ratio; Adaptive arrays; Antenna arrays; Array signal processing; Directive antennas; Filtering; Loaded antennas; Multiaccess communication; Quality of service; Telecommunication traffic; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1400128
