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Article: Design of multiplierless correlators for timing synchronization in IEEE 802.11a wireless LANs

TitleDesign of multiplierless correlators for timing synchronization in IEEE 802.11a wireless LANs
Authors
KeywordsLow-complexity implementation
Multiplierless correlator
Timing synchronization
Wireless local area network
Issue Date2003
PublisherIEEE.
Citation
Ieee Transactions On Consumer Electronics, 2003, v. 49 n. 1, p. 107-114 How to Cite?
AbstractTiming synchronization for IEEE 802.11a WLANs requires using a correlator to correlate the received signal with a known waveform. Straightforward implementation of this correlator results in the need to perform 320 million complex multiplications per second. This significant requirement can be eliminated by using multiplierless correlators. In this paper, multiplierless correlators are designed based on constraining the real and imaginary parts of correlator coefficients to be sums of powers of two. Sets of coefficients that yield good synchronization performance for simple A WGN channels are first identified; then their goodness for indoor communication environments is verified by simulation for multipath fading channels. Several multiplierless correlators are found. Comparison among these correlators identifies a good one that requires to perform only 26 addition/subtraction operations per correlator output while a similar synchronization performance can be maintained.
Persistent Identifierhttp://hdl.handle.net/10722/42928
ISSN
2015 Impact Factor: 1.12
2015 SCImago Journal Rankings: 0.732
References

 

DC FieldValueLanguage
dc.contributor.authorYip, KWen_HK
dc.contributor.authorWu, YCen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2007-03-23T04:34:54Z-
dc.date.available2007-03-23T04:34:54Z-
dc.date.issued2003en_HK
dc.identifier.citationIeee Transactions On Consumer Electronics, 2003, v. 49 n. 1, p. 107-114en_HK
dc.identifier.issn0098-3063en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42928-
dc.description.abstractTiming synchronization for IEEE 802.11a WLANs requires using a correlator to correlate the received signal with a known waveform. Straightforward implementation of this correlator results in the need to perform 320 million complex multiplications per second. This significant requirement can be eliminated by using multiplierless correlators. In this paper, multiplierless correlators are designed based on constraining the real and imaginary parts of correlator coefficients to be sums of powers of two. Sets of coefficients that yield good synchronization performance for simple A WGN channels are first identified; then their goodness for indoor communication environments is verified by simulation for multipath fading channels. Several multiplierless correlators are found. Comparison among these correlators identifies a good one that requires to perform only 26 addition/subtraction operations per correlator output while a similar synchronization performance can be maintained.en_HK
dc.format.extent704766 bytes-
dc.format.extent8772 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofIEEE Transactions on Consumer Electronicsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.subjectLow-complexity implementationen_HK
dc.subjectMultiplierless correlatoren_HK
dc.subjectTiming synchronizationen_HK
dc.subjectWireless local area networken_HK
dc.titleDesign of multiplierless correlators for timing synchronization in IEEE 802.11a wireless LANsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0098-3063&volume=49&issue=1&spage=107&epage=114&date=2003&atitle=Design+of+multiplierless+correlators+for+timing+synchronization+in+IEEE+802.11a+wireless+LANsen_HK
dc.identifier.emailWu, YC:ycwu@eee.hku.hken_HK
dc.identifier.emailNg, TS:tsng@eee.hku.hken_HK
dc.identifier.authorityWu, YC=rp00195en_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/TCE.2003.1205462en_HK
dc.identifier.scopuseid_2-s2.0-0037513447en_HK
dc.identifier.hkuros81468-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037513447&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume49en_HK
dc.identifier.issue1en_HK
dc.identifier.spage107en_HK
dc.identifier.epage114en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYip, KW=7101909909en_HK
dc.identifier.scopusauthoridWu, YC=7406894786en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK

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