Title :
Channel coherence in the low SNR regime
Author :
Zheng, Lizhong ; Tse, David N C ; Médard, Muriel
Author_Institution :
Dept. of EECS, Massachusetts Inst. of Technol., MA, USA
fDate :
27 June-2 July 2004
Abstract :
The effect of channel coherence on the capacity and energy efficiency of noncoherent fading channels at low SNR is studied. A simple characterization is given, and a new approach is developed, which can be used to study a wide variety of problems for communications over a wideband channel. The flat block fading channel is studied, which transmits one scalar symbol per symbol time distorted by a multiplicative fading coefficient and the additive Gaussian noise.
Keywords :
AWGN channels; channel capacity; fading channels; additive Gaussian noise; channel coherence; flat block fading channel; low SNR; multiplicative fading coefficient; noncoherent fading channel; scalar symbol transmission; symbol time; wideband channel; AWGN channels; Bandwidth; Channel capacity; Channel state information; Energy efficiency; Fading; Network address translation; Peak to average power ratio; Ultra wideband communication; Wireless communication;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365450
