Title :
Space-time processing for co-channel interference rejection and channel estimation in GSM/DCS systems
Author :
Fanfoni, S. ; Giancola, D. ; Girola, U. ; Parolari, S. ; Picciriello, A. ; Spagnolini, U.
Author_Institution :
Italtel R&S, Italy
fDate :
29 Sep-2 Oct 1998
Abstract :
In this paper there is proposed a space-time algorithm for co-channel interference (CCI) and intersymbol interference (ISI) reduction for GSM/DCS systems. The temporal channel for the Viterbi receiver and the beam-former weights for CCI rejection are estimated jointly by optimizing a suitable cost function for low-rank space-time channels. Compared to the solutions proposed in the literature, the advantages are: i) the reduction of the CCIs still using, for the equalization, a scalar Viterbi receiver and ii) the convergence of the estimates within a few symbols of the training sequence. Performances are evaluated by simulations
Keywords :
antenna arrays; array signal processing; cellular radio; cochannel interference; digital radio; equalisers; interference suppression; intersymbol interference; radio receivers; receiving antennas; GSM/DCS systems; ISI; Viterbi receiver; beam-former weight; channel estimation; co-channel interference rejection; convergence; cost function; equalization; intersymbol interference; low-rank space-time channels; scalar Viterbi receiver; space-time processing; temporal channel; training sequence; Channel estimation; Cost function; Distributed control; GSM; Interchannel interference; Intersymbol interference; Linear antenna arrays; Radiofrequency interference; Signal to noise ratio; Viterbi algorithm;
Conference_Titel :
Signals, Systems, and Electronics, 1998. ISSSE 98. 1998 URSI International Symposium on
Conference_Location :
Pisa
Print_ISBN :
0-7803-4900-8
DOI :
10.1109/ISSSE.1998.738056
