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Article: Design of multiplierless correlators for timing synchronization in IEEE 802.11a wireless LANs
Title | Design of multiplierless correlators for timing synchronization in IEEE 802.11a wireless LANs |
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Authors | |
Keywords | Low-complexity implementation Multiplierless correlator Timing synchronization Wireless local area network |
Issue Date | 2003 |
Publisher | IEEE. |
Citation | Ieee Transactions On Consumer Electronics, 2003, v. 49 n. 1, p. 107-114 How to Cite? |
Abstract | Timing 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 Identifier | http://hdl.handle.net/10722/42928 |
ISSN | 2023 Impact Factor: 4.3 2023 SCImago Journal Rankings: 1.298 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yip, KW | en_HK |
dc.contributor.author | Wu, YC | en_HK |
dc.contributor.author | Ng, TS | en_HK |
dc.date.accessioned | 2007-03-23T04:34:54Z | - |
dc.date.available | 2007-03-23T04:34:54Z | - |
dc.date.issued | 2003 | en_HK |
dc.identifier.citation | Ieee Transactions On Consumer Electronics, 2003, v. 49 n. 1, p. 107-114 | en_HK |
dc.identifier.issn | 0098-3063 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/42928 | - |
dc.description.abstract | Timing 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.extent | 704766 bytes | - |
dc.format.extent | 8772 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.format.mimetype | text/plain | - |
dc.language | eng | en_HK |
dc.publisher | IEEE. | en_HK |
dc.relation.ispartof | IEEE Transactions on Consumer Electronics | en_HK |
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. | - |
dc.subject | Low-complexity implementation | en_HK |
dc.subject | Multiplierless correlator | en_HK |
dc.subject | Timing synchronization | en_HK |
dc.subject | Wireless local area network | en_HK |
dc.title | Design of multiplierless correlators for timing synchronization in IEEE 802.11a wireless LANs | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://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+LANs | en_HK |
dc.identifier.email | Wu, YC:ycwu@eee.hku.hk | en_HK |
dc.identifier.email | Ng, TS:tsng@eee.hku.hk | en_HK |
dc.identifier.authority | Wu, YC=rp00195 | en_HK |
dc.identifier.authority | Ng, TS=rp00159 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1109/TCE.2003.1205462 | en_HK |
dc.identifier.scopus | eid_2-s2.0-0037513447 | en_HK |
dc.identifier.hkuros | 81468 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0037513447&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 49 | en_HK |
dc.identifier.issue | 1 | en_HK |
dc.identifier.spage | 107 | en_HK |
dc.identifier.epage | 114 | en_HK |
dc.identifier.isi | WOS:000182657400015 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Yip, KW=7101909909 | en_HK |
dc.identifier.scopusauthorid | Wu, YC=7406894786 | en_HK |
dc.identifier.scopusauthorid | Ng, TS=7402229975 | en_HK |
dc.identifier.issnl | 0098-3063 | - |