Publications-Detail

OFDM Turbo DeCodulation with EXIT Optimized Bit Loading and Signal Constellations

Authors:
Lüders, H.Eschbach, B.Schmalen, L.Vary, P.
Book Title:
Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
Organization:
IEEE
Pages:
p.p. 2589-2592
Address:
Taipei, Taiwan
Date:
Apr. 2009
ISBN:
978-1-42442-354-5
Language:
English

Abstract

We propose the combination of Orthogonal Frequency Division Multiplexing (OFDM) and Turbo DeCodulation (TDeC) -- a multiple Turbo process consisting of iterative demodulation and iterative source-channel decoding -- for transmission of correlated source codec parameters over wireless frequency-selective broadband fading channels. As OFDM systems split up frequency-selective fading channels into orthogonal flat-fading channels, individual modulation signal constellations sets with different bit mapping rules can be assigned to subcarriers taking into account the iterative reception and decoding process. The superior performance of the proposed OFDM-TDeC system is demonstrated by analyzing the achieved residual bit error rate (BER) and parameter signal-to-noise ratio (SNR).

Download

BibTeX

Copyright © by IEEE
lueders09.pdf
© 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.