Title :
Robust power adjustment for transmit beamforming in cellular communication systems
Author :
Biguesh, Mehrzad ; ShahbazPanahi, Shahram ; Gershman, Alex B.
Author_Institution :
Dept. of Commun. Syst., Gerhard Mercator Univ., Duisburg, Germany
Abstract :
A new robust power adjustment method is proposed for transmit beamforming in cellular communication systems that use antenna arrays at base stations (BSs). Our method provides an improved robustness against imperfect knowledge of the wireless channel by means of maintaining the required quality of service (QoS) for the worst-case channel uncertainty.
Keywords :
array signal processing; cellular radio; matrix algebra; power control; quality of service; telecommunication channels; telecommunication control; QoS; base station antenna arrays; cellular communication systems; downlink channel correlation matrices; quality of service; robust power adjustment; transmit beamforming; wireless channel; Antenna arrays; Array signal processing; Base stations; Closed-form solution; Downlink; Length measurement; Quality of service; Robustness; Signal to noise ratio; Uncertainty;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1199879
