Channel-parameter estimation for turbo trellis coded modulation in OFDM systems

In this paper, a blind maximum-likelihood channel-parameter estimation algorithm is developed for turbo trellis coded modulation (TTCM) in orthogonal frequency division multiplexing (OFDM) systems. We modify the Baum-Welch (BW) parameter estimation algorithm to provide a computationally efficient so...

Full description

Saved in:

Bibliographic Details
Published in:	Journal of communications technology & electronics Vol. 52; no. 4; pp. 431 - 440
Main Authors:	Ucan, O. N., Osman, O.
Format:	Journal Article
Language:	English
Published:	Silver Spring Springer Nature B.V 01-04-2007
Subjects:	Algorithms Blinds Channels Codes Computational efficiency Doppler effect Electronics Modulation Orthogonal Frequency Division Multiplexing Parameter estimation
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	In this paper, a blind maximum-likelihood channel-parameter estimation algorithm is developed for turbo trellis coded modulation (TTCM) in orthogonal frequency division multiplexing (OFDM) systems. We modify the Baum-Welch (BW) parameter estimation algorithm to provide a computationally efficient solution for error performance. The bit-error performance of the TTCM-OFDM scheme has been investigated in AWGN, Rayleigh, Rician channels with and without channel-state information (CSI) for different Doppler shifts, signal-to-noise ratios (SNR), iteration numbers, number of subcarriers, and frame sizes.[PUBLICATION ABSTRACT]
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1064-2269 1555-6557
DOI:	10.1134/S1064226907040080