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AuthorHussain S.I.
AuthorAlouini M.-S.
AuthorHasna , Mazen
Available date2022-04-26T11:06:58Z
Publication Date2010
Publication Name2010 IEEE International Symposium on "A World of Wireless, Mobile and Multimedia Networks", WoWMoM 2010 - Digital Proceedings
ResourceScopus
Identifierhttp://dx.doi.org/10.1109/WOWMOM.2010.5534947
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-77955911872&doi=10.1109%2fWOWMOM.2010.5534947&partnerID=40&md5=997e13f36c25a6fa8ddf7c2a242e6fc2
URIhttp://hdl.handle.net/10576/30557
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
Languageen
PublisherIEEE
SubjectChannel shortening
Combining techniques
Communication hardware
Cooperative communication
Cooperative relaying
Cooperative sensor networks
Desired signal
Multiple relays
Noise levels
Process needs
RAKE fingers
RAKE receiver
RAKE reception
Received signals
Relaying Nodes
Selection combining
Signal components
Simulation result
Source nodes
System resources
Transmitted signal
Wireless systems
Frequency shift keying
Sensor networks
Signal receivers
Wireless sensor networks
TitleA signal combining technique based on channel shortening for cooperative sensor networks
TypeConference Paper
dc.accessType Abstract Only


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