{"title":"ESPAR antennas-based signal processing for DS-CDMA signal waveforms in ad hoc network systems","authors":"K. Yang, T. Ohira","doi":"10.1109/SPAWC.2001.923863","DOIUrl":null,"url":null,"abstract":"Electronically steerable passive array radiator (ESPAR) antennas are capable of spatially forming a beam toward the desired signal with the lowest cost, and are suitable to be employed in ad hoc wireless network systems. We propose a cascaded scheme for ESPAR antenna-based signal processing, where the beam toward the desired user terminal is formed in advance, and the equalizer for direct-sequence code division multiple access (DS-CDMA) signal waveforms is followed. According to the scheme, cochannel user-terminal signals and intersymbol interference signals are respectively suppressed by spatial filtering of the desired beam and the waveform-based adaptive equalization. The steady state and convergence performance of the proposed scheme is illustrated numerically by simulations.","PeriodicalId":435867,"journal":{"name":"2001 IEEE Third Workshop on Signal Processing Advances in Wireless Communications (SPAWC'01). Workshop Proceedings (Cat. No.01EX471)","volume":"284 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2001-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2001 IEEE Third Workshop on Signal Processing Advances in Wireless Communications (SPAWC'01). Workshop Proceedings (Cat. No.01EX471)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SPAWC.2001.923863","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
Electronically steerable passive array radiator (ESPAR) antennas are capable of spatially forming a beam toward the desired signal with the lowest cost, and are suitable to be employed in ad hoc wireless network systems. We propose a cascaded scheme for ESPAR antenna-based signal processing, where the beam toward the desired user terminal is formed in advance, and the equalizer for direct-sequence code division multiple access (DS-CDMA) signal waveforms is followed. According to the scheme, cochannel user-terminal signals and intersymbol interference signals are respectively suppressed by spatial filtering of the desired beam and the waveform-based adaptive equalization. The steady state and convergence performance of the proposed scheme is illustrated numerically by simulations.
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