Title :
Transmitting array antenna beamforming based on linear goal programming for forward link of DS-CDMA
Author :
Aoki, Tsuguhide ; Yoshii, Isamu ; Hirano, Norimichi ; Kohno, Ryuji
Author_Institution :
Div. of Artificial Environ. Syst., Yokohama Nat. Univ., Japan
Abstract :
This paper investigates improvement of the radiation pattern design of the transmitting array antenna beamforming and transmission power control (TPC) for the forward link of DS-CDMA/FDD system. Optimum transmission beamforming and power can be derived with the information of the propagation channel of the forward link in order to improve user capacity. It is assumed that a channel is static, all mobile stations (MSs) report measured channel characteristics to a base station (BS) and that controls received SIRs of all MSs by using this information. Then, the optimum control of transmitting beam pattern based on linear goal programming is proposed to improve user capacity
Keywords :
antenna arrays; antenna radiation patterns; array signal processing; cellular radio; channel capacity; code division multiple access; frequency division multiplexing; linear programming; optimal control; power control; radio links; spread spectrum communication; transmitting antennas; DS-CDMA; FDD; SIRs; channel characteristics; forward link; linear goal programming; mobile stations; optimum transmission beamforming; propagation channel; radiation pattern design; transmission power control; transmitting array antenna beamforming; user capacity; Antenna arrays; Antenna radiation patterns; Antennas and propagation; Array signal processing; Base stations; Linear antenna arrays; Linear programming; Multiaccess communication; Power control; Transmitting antennas;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881450
