Performance of precoded OFDM with channel estimation error

Pair-wise error probability (PEP) is analyzed in the presence of channel estimation error (CEE) for group linear constellation precoded orthogonal frequency division multiplexing (GLCP-OFDM). It is observed that the CEE does not reduce the diversity order but contributes to a loss of coding gain. Fu...

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Bibliographic Details
Published in:IEEE transactions on signal processing 2006-03, Vol.54 (3), p.1165-1171
Main Authors: Ahmed, K.I., Tepedelenlioglu, C., Spanias, A.
Format: Article
Language:English
Subjects:
Allocations
Applied sciences
Channel estimation
Channel state information
Channels
Coding, codes
Constellations
Detection, estimation, filtering, equalization, prediction
Digital TV
Error analysis
Error probability
Exact sciences and technology
Frequency division multiplexing
Gain
Information, signal and communications theory
Least squares approximation
Linear minimum mean square error (LMMSE)
Mean square error methods
Multiplexing
OFDM
optimal training
Optimization
Orthogonal Frequency Division Multiplexing
orthogonal frequency-division multiplexing (OFDM)
Pairwise error probability
pairwise error probability (PEP)
Performance analysis
Signal and communications theory
Signal, noise
Subcarriers
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Description
Summary:Pair-wise error probability (PEP) is analyzed in the presence of channel estimation error (CEE) for group linear constellation precoded orthogonal frequency division multiplexing (GLCP-OFDM). It is observed that the CEE does not reduce the diversity order but contributes to a loss of coding gain. Furthermore, the proposed optimal power allocation scheme based on the derived PEP has performance that converges to the performance with perfect channel state information when the number of subcarriers to the channel length ratio increases.
ISSN:1053-587X
1941-0476
DOI:10.1109/TSP.2005.862898