A diversity compression and combining technique based on channel shortening for cooperative networks

Handle URI:
http://hdl.handle.net/10754/562081
Title:
A diversity compression and combining technique based on channel shortening for cooperative networks
Authors:
Hussain, Syed Imtiaz; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 ) ; Hasna, Mazen Omar
Abstract:
The cooperative relaying process with multiple relays needs proper coordination among the communicating and the relaying nodes. This coordination and the required capabilities may not be available in some wireless systems where the nodes are equipped with very basic communication hardware. We consider a scenario where the source node transmits its signal to the destination through multiple relays in an uncoordinated fashion. The destination captures the multiple copies of the transmitted signal through a Rake receiver. We analyze a situation where the number of Rake fingers N is less than that of the relaying nodes L. In this case, the receiver can combine N strongest signals out of L. The remaining signals will be lost and act as interference to the desired signal components. To tackle this problem, we develop a novel signal combining technique based on channel shortening principles. This technique proposes a processing block before the Rake reception which compresses the energy of L signal components over N branches while keeping the noise level at its minimum. The proposed scheme saves the system resources and makes the received signal compatible to the available hardware. Simulation results show that it outperforms the selection combining scheme. © 2012 IEEE.
KAUST Department:
Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Wireless Communications
Issue Date:
Feb-2012
DOI:
10.1109/TWC.2011.121911.101960
Type:
Article
ISSN:
15361276
Sponsors:
This work is supported by Qatar National Research Fund (QNRF) grant through National Priority Research Program (NPRP) No. 08-055-2-011. QNRF is a member of Qatar Foundation.
Appears in Collections:
Articles; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorHussain, Syed Imtiazen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.contributor.authorHasna, Mazen Omaren
dc.date.accessioned2015-08-03T09:44:22Zen
dc.date.available2015-08-03T09:44:22Zen
dc.date.issued2012-02en
dc.identifier.issn15361276en
dc.identifier.doi10.1109/TWC.2011.121911.101960en
dc.identifier.urihttp://hdl.handle.net/10754/562081en
dc.description.abstractThe cooperative relaying process with multiple relays needs proper coordination among the communicating and the relaying nodes. This coordination and the required capabilities may not be available in some wireless systems where the nodes are equipped with very basic communication hardware. We consider a scenario where the source node transmits its signal to the destination through multiple relays in an uncoordinated fashion. The destination captures the multiple copies of the transmitted signal through a Rake receiver. We analyze a situation where the number of Rake fingers N is less than that of the relaying nodes L. In this case, the receiver can combine N strongest signals out of L. The remaining signals will be lost and act as interference to the desired signal components. To tackle this problem, we develop a novel signal combining technique based on channel shortening principles. This technique proposes a processing block before the Rake reception which compresses the energy of L signal components over N branches while keeping the noise level at its minimum. The proposed scheme saves the system resources and makes the received signal compatible to the available hardware. Simulation results show that it outperforms the selection combining scheme. © 2012 IEEE.en
dc.description.sponsorshipThis work is supported by Qatar National Research Fund (QNRF) grant through National Priority Research Program (NPRP) No. 08-055-2-011. QNRF is a member of Qatar Foundation.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectchannel shorteningen
dc.subjectcombining techniquesen
dc.subjectCooperative communicationsen
dc.subjectselection combiningen
dc.titleA diversity compression and combining technique based on channel shortening for cooperative networksen
dc.typeArticleen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journalIEEE Transactions on Wireless Communicationsen
dc.contributor.institutionElectrical and Computer Engineering Program, Texas A and M University at Qatar, Education City, Doha, Qataren
dc.contributor.institutionDepartment of Electrical Engineering, Qatar University, Doha, Qataren
kaust.authorAlouini, Mohamed-Slimen
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