Treffer: A Walsh-Hadamard Coded Spectral Efficient Full Frequency Diversity OFDM System

Title:
A Walsh-Hadamard Coded Spectral Efficient Full Frequency Diversity OFDM System
Authors:
SHAOPENG WANG, SHIHUA ZHU, GUOMEI ZHANG
Source:
IEEE transactions on communications. 58(1):28-34
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2010.
Publication Year:
2010
Physical Description:
print, 29 ref
Original Material:
INIST-CNRS
Subject Terms:
Telecommunications, Télécommunications, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Telecommunications et theorie de l'information, Telecommunications and information theory, Théorie de l'information, du signal et des communications, Information, signal and communications theory, Théorie du signal et des communications, Signal and communications theory, Signal, bruit, Signal, noise, Détection, estimation, filtrage, égalisation, prédiction, Detection, estimation, filtering, equalization, prediction, Codage, codes, Coding, codes, Multiplexage, Multiplexing, Traitement du signal, Signal processing, Divers, Miscellaneous, Réduction bruit, Noise reduction, Reducción ruido, Algorithme, Algorithm, Algoritmo, Brouillage intersymbole, Intersymbol interference, Interferencia intersímbolo, Combinaison diversité, Diversity combining, Combinación diversidad, Complexité algorithme, Algorithm complexity, Complejidad algoritmo, Diversité fréquence, Frequency diversity, Diversidad frecuencia, Décodage, Decoding, Desciframiento, Evaluation performance, Performance evaluation, Evaluación prestación, Evanouissement sélectif, Selective fading, Desvanecimiento selectivo, Maximum vraisemblance, Maximum likelihood, Maxima verosimilitud, Multiplexage fréquence orthogonal, Orthogonal frequency division multiplexing, Multiplaje frecuencia ortogonal, Méthode itérative, Iterative method, Método iterativo, Sous porteuse, Subcarrier, Subportadora, Suppression interférence, Interference suppression, Sélection fréquence, Frequency selection, Traitement signal, Signal processing, Procesamiento señal, COFDM, SISO, frequency diversity, interference cancelation, spectral efficiency
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Department of Information and Communications Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
ISSN:
0090-6778
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=22346331
Rights:
Copyright 2015 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Telecommunications and information theory
Accession Number:
edscal.22346331
Database:
PASCAL Archive

Weitere Informationen

A full frequency diversity COFDM (FD-COFDM) scheme based on sub-channel multiplexing is proposed to improve the performance of COFDM without sacrificing spectral efficiency. Since the channel suffers the frequency selective fading, the received signal contains strong inter-symbol interference (ISI). To obtain the diversity- and code-gains, an iterative receiving algorithm is presented. By jointly using diversity combining, interference cancelation and soft decoding, the proposed iterative receiving algorithm properly decodes the information bits in the strong ISI environment. Consequently, all the subcarriers of FD-COFDM participate in diversity so that the system can achieve full frequency diversity in most practical channels. The new receiving algorithm is relatively simple compared to the maximum likelihood estimation algorithm, and is therefore a better alternative to balance the algorithm complexity and system performance.