Title :
Transition probabilities of coded BPSK signals for hard-decision decoding with k-bit CSI in Nakagami-m fading channels
Author :
Lee, Youngkou ; Choi, Sungsoo ; Kim, Seung-Geun ; Kim, Kiseon
Author_Institution :
Dept. of Inf. & Commun., KJIST, Kwangju, South Korea
Abstract :
We evaluate a closed form expression of the transition probabilities used for calculating metric values and pairwise error probabilities of convolutional codes, equipped with coherent BPSK signals, for hard-decision decoding with k-bit channel state information (CSI) in slow varying frequency nonselective Nakagami-m fading channels. It is noted that 1-bit CSI is sufficient to take advantage of channel information under deep fadings.
Keywords :
Viterbi decoding; convolutional codes; error statistics; fading channels; modulation coding; multipath channels; phase shift keying; CSI; Nakagami-m fading channels; Viterbi decoder; channel information; channel state information; coded BPSK signals; coherent BPSK signals; convolutional codes; deep fadings; hard-decision decoding; multipath fading; pairwise error probabilities; slow varying frequency nonselective fading channels; transition probabilities; wireless communication; Binary phase shift keying; Channel state information; Convolution; Convolutional codes; Decoding; Fading; Interleaved codes; Nakagami distribution; Pairwise error probability; Viterbi algorithm;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.975489