A signal combining technique based on channel shortening for cooperative sensor networks

Handle URI:
http://hdl.handle.net/10754/564282
Title:
A signal combining technique based on channel shortening for cooperative sensor networks
Authors:
Hussain, Syed Imtiaz; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 ) ; Hasna, Mazen Omar
Abstract:
The cooperative relaying process needs proper coordination among the communicating and the relaying nodes. This coordination and the required capabilities may not be available in some wireless systems, e.g. wireless sensor networks where the nodes are equipped with very basic communication hardware. In this paper, we consider a scenario where the source node transmits its signal to the destination through multiple relays in an uncoordinated fashion. The destination can capture 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. 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. ©2010 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2010 IEEE International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM)
Conference/Event name:
2010 IEEE International Symposium on A World of Wireless Mobile and Multimedia Networks - WoWMoM 2010
Issue Date:
Jun-2010
DOI:
10.1109/WOWMOM.2010.5534947
Type:
Conference Paper
ISBN:
9781424472659
Appears in Collections:
Conference Papers; 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.accessioned2015-08-04T06:22:02Zen
dc.date.available2015-08-04T06:22:02Zen
dc.date.issued2010-06en
dc.identifier.isbn9781424472659en
dc.identifier.doi10.1109/WOWMOM.2010.5534947en
dc.identifier.urihttp://hdl.handle.net/10754/564282en
dc.description.abstractThe cooperative relaying process needs proper coordination among the communicating and the relaying nodes. This coordination and the required capabilities may not be available in some wireless systems, e.g. wireless sensor networks where the nodes are equipped with very basic communication hardware. In this paper, we consider a scenario where the source node transmits its signal to the destination through multiple relays in an uncoordinated fashion. The destination can capture 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. 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. ©2010 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectChannel shorteningen
dc.subjectCombining techniquesen
dc.subjectCooperative communicationsen
dc.subjectSelection combiningen
dc.titleA signal combining technique based on channel shortening for cooperative sensor networksen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2010 IEEE International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM)en
dc.conference.date14 June 2010 through 17 June 2010en
dc.conference.name2010 IEEE International Symposium on A World of Wireless Mobile and Multimedia Networks - WoWMoM 2010en
dc.contributor.institutionTexas A and M University at Qatar, Doha, Qataren
dc.contributor.institutionQatar University, Doha, Qataren
kaust.authorAlouini, Mohamed-Slimen
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