منابع مشابه
On Channel Coherence in the Low SNR Regime
The current study of the low SNR fading channels focuses on two extreme cases: the coherent case with perfect channel state information (CSI) available at the receiver, and the non-coherent case with no hope to obtain the channel information at all. Most of practical channels, with a low SNR and a slowly varying channel, lies in between these two extremes. In this paper, we use training based s...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2007
ISSN: 0018-9448
DOI: 10.1109/tit.2006.890777