Title :
Space-time combining in the uplink of UTRA/FDD
Author :
Kopsa, Klaus ; Weinmann, Reinold ; Braun, Volker ; Tangemann, Michael
Author_Institution :
Inst. fur Nachrichtentech. und Hochfrequenztech., Tech. Univ. Wien, Austria
Abstract :
We investigate various array combining algorithms considering the special requirements of the UTRA/FDD uplink. After formulating the algorithms, we assess their performance in a modified vehicular B channel that is spatially inhomogeneous. The bit error ratios in different situations are presented together with some considerations about the computational complexity of the used methods. From bit error performance and required effort, we conclude that the minimum mean squared error (MMSE) algorithm with reduced complexity is the most suitable method for a real operating system
Keywords :
array signal processing; cellular radio; cochannel interference; code division multiple access; diversity reception; error statistics; least mean squares methods; multiuser channels; radio access networks; radio links; BER; MMSE algorithm; UTRA/FDD uplink; array combining algorithms; bit error performance; bit error ratios; cellular CDMA-systems; cochannel interference; computational complexity; minimum mean squared error; modified vehicular B channel; multiple access interference; performance; real operating system; reduced complexity; space-time combining; spatially inhomogeneous channel; Antennas and propagation; Delay effects; Delay estimation; Error correction; Fading; Multiple access interference; Radio communication; Radio transmitters; Receiving antennas; Signal processing;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891953
