Title :
Optimization of downlink beamforming for systems with frequency division duplex
Author :
Czylwik, Andreas ; Dekorsy, Armin
Author_Institution :
Inst. for Commun. Technol., Technische Univ. Braunschweig, Germany
Abstract :
In this paper downlink beamforming for cellular radio systems with frequency division duplex (FDD) is optimized. System level simulations shall clarify what gain can be achieved by applying circular arrays with omnidirectional antenna elements in contrast to linear arrays with sectorizing antenna elements. Furthermore, the parameters of the antenna arrays like element spacing and beamwidth of the sector antennas are optimized
Keywords :
adaptive antenna arrays; array signal processing; cellular radio; digital simulation; linear antenna arrays; optimisation; radio links; antenna array parameters; beamwidth; cellular radio systems; circular arrays; covariance matrix; downlink beamforming; downlink beamforming optimization; element spacing; frequency division duplex system; linear arrays; omnidirectional antenna elements; sector antennas; sectorizing antenna elements; smart antennas; system level simulations; Array signal processing; Attenuation; Base stations; Delay; Downlink; Fading; Frequency conversion; Laplace equations; Linear antenna arrays; Power system modeling;
Conference_Titel :
Broadband Communications, 2002. Access, Transmission, Networking. 2002 International Zurich Seminar on
Conference_Location :
Zurich
Print_ISBN :
0-7803-7257-3
DOI :
10.1109/IZSBC.2002.991751
