Title :
Effect of nonstationarity on radio-mobile channel capacity
Author :
Florens, Olivier ; Roviras, Daniel ; Thomas, Nathalie ; Lanciaux, Jacques
Author_Institution :
TeSA-IRIT, Toulouse, France
Abstract :
Mobile radio channels are often frequency selective channels and time varying channels. The purpose of this paper is to compute the maximal achievable mutual information for radio-mobile communications in presence of both time and frequency dispersion. The maximal mean capacity is computed when the channel frequency response is perfectly known at both the receiver and emitter sides. This paper also presents the impact of imperfect channel estimation on the channel capacity. A simulation with the GSM Hilly Terrain channel model is also considered.
Keywords :
cellular radio; channel capacity; channel estimation; frequency response; radio receivers; time-varying channels; GSM Hilly Terrain channel model; frequency response; frequency selective channels; imperfect channel estimation; maximal mean capacity; mobile communications; mobile radio channel capacity; nonstationarity effect; time varying channels; time-frequency dispersion; Additive noise; Additive white noise; Channel capacity; Channel estimation; Delay effects; Estimation error; Frequency response; Gaussian noise; Mutual information; Wireless communication;
Conference_Titel :
Information and Communication Technologies: From Theory to Applications, 2004. Proceedings. 2004 International Conference on
Print_ISBN :
0-7803-8482-2
DOI :
10.1109/ICTTA.2004.1307722