Title :
Performance of space time coding in subway tunnel environments
Author :
Baudet, J. ; Gonzalez-Lopez, M. ; Degardin, D. ; Dapena, A. ; Lienard, M. ; Castedo, L. ; Degauque, P.
Author_Institution :
Dept. Electronique, Lille I Univ., Villeneuve d´´Ascq, France
Abstract :
We investigate how to increase the capacity of GSM (global system for mobile communications) radio interfaces in a subway tunnel environments by means of antenna arrays and space-time coding (STC) techniques. We demonstrate that the wireless channels encountered in subway tunnels behave as flat fading channels with strong spatial correlations. We also analyzed the performance of several STC techniques that do not introduce spatial correlation and, thus, maximize transmission rate. These techniques are evaluated with experimental channels measured in the subway of Paris.
Keywords :
antenna arrays; cellular radio; channel capacity; error statistics; fading channels; indoor radio; maximum likelihood decoding; multipath channels; BER; GSM radio interfaces; antenna arrays; channel capacity; flat fading channels; multipath channels; space time coding; space-time coding; space-time maximum-likelihood decoding; spatial correlation; subway tunnel environments;
Conference_Titel :
MIMO: Communications Systems from Concept to Implementations (Ref. No. 2001/175), IEE Seminar on
DOI :
10.1049/ic:20010192
