Low-complexity iterative decoding for coded differential transmission

In this paper, a power-efficient low-complexity iterative receiver structure for noncoherent transmission over Rayleigh flat fading channels without channel state information (CSI) is presented. As the main contribution, several novel decision-feedback assisted differential demodulators are derived,...

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Bibliographic Details
Main Authors: Lampe, L.H.-J., Schober, R.
Format: Conference Proceeding
Language:English
Subjects:
Analytical models
Bit error rate
Channel state information
Convolutional codes
Demodulation
Fading
Iterative decoding
Modulation coding
Receiving antennas
Transmitting antennas
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Summary:In this paper, a power-efficient low-complexity iterative receiver structure for noncoherent transmission over Rayleigh flat fading channels without channel state information (CSI) is presented. As the main contribution, several novel decision-feedback assisted differential demodulators are derived, which are well-suited implementation. Thereby, the general case of multiple transmit and multiple receive antennas is considered. We further provide analytical expressions for the achievable bit-error rate, which in good accordance with simulation results highlight the advantageous properties of the proposed receiver structure. Despite its simple components, the noncoherent iterative receiver without CSI can outperform a coherent scheme assuming perfect CSI.
ISSN:1525-3511
1558-2612
DOI:10.1109/WCNC.2003.1200361