• Linear Pre-coding in MIMO-DMA...

Result: Linear Pre-coding in MIMO-DMA Relay Networks

Title:
Linear Pre-coding in MIMO-DMA Relay Networks
Authors:
GOLBON-HAGHIGHI, Mohammad-Hossein, MAHBOOBI, Behrad, ARDEBILIPOUR, Mehrdad
Source:
Wireless personal communications. 79(2):1321-1341
Publisher Information:
Heidelberg: Springer, 2014.
Publication Year:
2014
Physical Description:
print, 58 ref
Original Material:
INIST-CNRS
Subject Terms:
Telecommunications, Télécommunications, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Informatique; automatique theorique; systemes, Computer science; control theory; systems, Logiciel, Software, Systèmes informatiques et systèmes répartis. Interface utilisateur, Computer systems and distributed systems. User interface, Electronique, Electronics, Electronique des semiconducteurs. Microélectronique. Optoélectronique. Dispositifs à l'état solide, Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices, Circuits intégrés, Integrated circuits, Circuits intégrés par fonction (dont mémoires et processeurs), Integrated circuits by function (including memories and processors), Telecommunications et theorie de l'information, Telecommunications and information theory, Télécommunications, Telecommunications, Radiocommunications, Emetteurs. Récepteurs, Transmitters. Receivers, Equipements et installations, Equipments and installations, Radiocommunications du service mobile, Mobile radiocommunication systems, Accès multiple répartition code, Code division multiple access, Acceso múltiple división código, Accès multiple, Multiple access, Acceso múltiple, Analyse non convexe, Non convex analysis, Análisis no convexo, Canal multiple, Multiple channel, Canal múltiple, Canal relais, Relay channel, Canal relé, Canal transmission, Transmission channel, Canal transmisión, Codage linéaire, Linear coding, Codificación lineal, Complexité matériel, Hardware complexity, Complejidad hardware, Emetteur récepteur, Transceiver, Emisor receptor, Estimation canal, Channel estimation, Estimación canal, Formation voie, Beam forming, Formación haz, Multiplicité, Multiplicity, Multiplicidad, Problème NP difficile, NP hard problem, Problema NP duro, Programmation convexe, Convex programming, Programación convexa, Programmation mathématique, Mathematical programming, Programación matemática, Programmation quadratique, Quadratic programming, Programación cuadrática, Rapport signal interférence bruit, Signal to interference plus noise ratio, Relación señal interferencia ruido, Réseau sans fil, Wireless network, Red sin hilo, Source signal, Signal sources, Système MIMO, MIMO system, Sistema MIMO, Radiotéléphonie cellulaire, Cellular radio, Telefonía celular, Beamforming, CDMA, MIMO-relay, MIMO, Power allocation, Relay networks, Semi-definite programming
Document Type:
Academic journal Article
File Description:
text
Language:
English
Author Affiliations:
Electrical Engineering, Communications, K. N. Toosi University of Technology, Tehran, Iran, Islamic Republic of
ISSN:
0929-6212
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=28888548
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:
Computer science; theoretical automation; systems

Electronics

Telecommunications and information theory
Accession Number:
edscal.28888548
Database:
PASCAL Archive

Further Information

Our aim in this paper is to define a novel beamforming approach in wireless multiple-input-multiple-output (MIMO) code-division-multiple-access (CDMA) relay networks, which involves communication between multiple source-destination pairs. It is assumed that full channel state information of source-relay and relay-destination channels are available. Our design consists of a two-step amplify-and-forward protocol. The first step includes signal transmission from the sources to the MIMO relay, and the second step contains transmitting a version of the linear precoded signal to the destinations. Beamforming is investigated only in MIMO-relay node to reduce end user's hardware complexity and save the computational power. Accordingly, the optimization problem is defined to find the MIMO relay beamforming coefficients that minimize total relay transmit power by keeping the signal-to-interference-plus-noise ratio (SINR) of all destinations above a certain threshold value. It is shown that such optimization problem is a non-convex quadratically constrained quadratic programming, which is NP-hard in general. However, by relaxing this problem to a semi-definite programming problem, the problem can be solved efficiently. Simulation results verify the performance gain implied by MIMO-CDMA relay system compared to the non-CDMA coded system.