Title :
A downlink adaptive transmitting antenna method for T/F/SDMA FDD systems avoiding DOA estimation
Author :
Aste, T. ; Forster, P. ; Fety, L. ; Mayrargue, S.
Author_Institution :
Lab. d´Electron. et de Commun., Conservatoire Nat. des Arts et Metiers, Paris, France
Abstract :
In this paper, the problem of space only downlink processing for FDD (Frequency Division Duplex) radio-communication systems is considered. It is shown that using criterions based on average C/I, one can avoid DOA estimation and deduce these criterions at downlink frequency from their equivalent at uplink frequency, under sonic assumptions about array topology. Moreover, here, we introduce a more generic approach than the former one. denoted as pattern synthesis.
Keywords :
antenna arrays; array signal processing; direction-of-arrival estimation; frequency division multiple access; frequency division multiplexing; radiocommunication; space division multiple access; time division multiple access; transmitting antennas; DOA estimation; T-F-SDMA FDD systems; array topology; downlink adaptive transmitting antenna method; downlink frequency; frequency division duplex radio-communication systems; pattern synthesis; sonic assumptions; space-only downlink processing; uplink frequency; Antenna arrays; Arrays; Direction-of-arrival estimation; Downlink; Mobile communication; Transmitting antennas; Uplink;
Conference_Titel :
Signal Processing Conference (EUSIPCO 1998), 9th European
Conference_Location :
Rhodes
Print_ISBN :
978-960-7620-06-4
