• Space-Time Network Coding

Treffer: Space-Time Network Coding

Title:
Space-Time Network Coding
Authors:
LAI, Hung-Quoc, LIU, K. J. Ray
Source:
IEEE transactions on signal processing. 59(4):1706-1718
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2011.
Publication Year:
2011
Physical Description:
print, 35 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, Représentation du signal. Analyse spectrale, Signal representation. Spectral analysis, Détection, estimation, filtrage, égalisation, prédiction, Detection, estimation, filtering, equalization, prediction, Codage, codes, Coding, codes, Accès multiple répartition code, Code division multiple access, Acceso múltiple división código, Accès multiple répartition fréquence, Frequency division multiple access, Acceso múltiple distribución frecuencia, Accès multiple répartition temps, Time division multiple access, Acceso múltiple distribución tiempo, Classification automatique, Automatic classification, Clasificación automática, Classification signal, Signal classification, Codage linéaire, Linear coding, Codificación lineal, Code espace temps, Space-time codes, Commutation paquet, Packet switching, Conmutación por paquete, Diversité spatiale, Space diversity, Diversidad espacial, Délai transmission, Transmission time, Plazo transmisión, Economies d'énergie, Energy savings, Ahorros energía, Evaluation performance, Performance evaluation, Evaluación prestación, Relais, Relay, Relé, Réseau sans fil, Wireless network, Red sin hilo, Synchronisation, Synchronization, Sincronización, Taux transmission, Transmission rate, Relación transmisión, Timing, Traitement signal, Signal processing, Procesamiento señal, Télécommunication sans fil, Wireless telecommunication, Telecomunicación sin hilo, Codage de réseau, Network coding, Cooperative communications, frequency synchronization, linear network coding, space-time network codes, timing synchronization, wireless network cocast
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
U.S. Army RDECOM CERDEC, RDER-STA-DS, Aberdeen Proving Ground, MD 21005, United States
Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, United States
ISSN:
1053-587X
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=24343166
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.24343166
Database:
PASCAL Archive

Weitere Informationen

Traditional cooperative communications can improve communication reliability. However, transmissions from multiple relay nodes are challenging in practice. Single transmissions in time-division multiple-access (TDMA) manner cause large transmission delay, but simultaneous transmissions from two or more nodes using frequency-division multiple access (FDMA) and code-division multiple access (CDMA) are associated with the issue of imperfect frequency and timing synchronization. In this work, a novel framework for cooperative communications is proposed to achieve full spatial diversity with low transmission delay and eliminate the issue of imperfect synchronization. This is realized by the use of space-time network codes (STNCs) associated with a novel concept of wireless network cocast. For a network of N client nodes, R relay nodes and a base node, the STNCs provide a diversity order of (R + 1) for each symbol with (N + R) time slots, a reduction from 2N time slots in traditional FDMA and CDMA cooperative communications for N being usually greater than R and from N(R + 1) time slots in traditional TDMA cooperative communications. The STNCs are also applied in networks, where the client nodes located in a cluster act as relays to help one another to improve their transmission performance. The performance in clustering setting is studied to show the improvement in power saving, range extension, and transmission rate.