{"title":"Few More Quasi-Orthogonal Space-Time Block Codes for Four Transmit Antennas","authors":"N. Thakur, S. S. Thakur, A. Gogoi","doi":"10.1109/CICN.2011.78","DOIUrl":null,"url":null,"abstract":"In this paper, we derive few new quasi-orthogonal space-time block codes for four transmit antennas. These codes differ from each other and existing codes in character matrices and/or correlated values in character matrices. These codes can be constructed using elementary sub-matrices. We also derive corresponding maximum-likelihood decoders for the proposed codes. We observe that decoding complexity of some of these codes is less as compared to the rest of them for rectangular-QAM modulation. Bit error rate performance of these codes have been shown to be same as those of existing quasi-orthogonal space time block codes for four transmit antennas over quasi-static flat Rayleigh fading channels.","PeriodicalId":292190,"journal":{"name":"2011 International Conference on Computational Intelligence and Communication Networks","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 International Conference on Computational Intelligence and Communication Networks","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CICN.2011.78","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
Abstract
In this paper, we derive few new quasi-orthogonal space-time block codes for four transmit antennas. These codes differ from each other and existing codes in character matrices and/or correlated values in character matrices. These codes can be constructed using elementary sub-matrices. We also derive corresponding maximum-likelihood decoders for the proposed codes. We observe that decoding complexity of some of these codes is less as compared to the rest of them for rectangular-QAM modulation. Bit error rate performance of these codes have been shown to be same as those of existing quasi-orthogonal space time block codes for four transmit antennas over quasi-static flat Rayleigh fading channels.
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