{"title":"基于波束零化的自适应MIMO系统性能研究","authors":"M. Gheryani, Zhiyuan Wu, Y. Shayan","doi":"10.1109/ICC.2009.5198804","DOIUrl":null,"url":null,"abstract":"In this paper, \"beam-nulling\" is proposed to send signals over a generated subspace orthogonal to the weakest spatial subchannel fed back from the receiver. Signal-to-interference-plus-noise ratio (SINR) of MMSE receiver is derived for beam-nulling. Then the associated average bit-error rate (BER) of beam-nulling is given numerically and verified by simulation results. Simulation results are provided to compare beam-nulling with beamforming at the same data rate. To improve performance further, beam-nulling is concatenated with linear dispersion code. Simulation results are also provided to compare the concatenated scheme with beamforming.","PeriodicalId":383593,"journal":{"name":"2009 4th International Symposium on Wireless Pervasive Computing","volume":"34 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Performance of Adaptive MIMO System Based on Beam-Nulling\",\"authors\":\"M. Gheryani, Zhiyuan Wu, Y. Shayan\",\"doi\":\"10.1109/ICC.2009.5198804\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, \\\"beam-nulling\\\" is proposed to send signals over a generated subspace orthogonal to the weakest spatial subchannel fed back from the receiver. Signal-to-interference-plus-noise ratio (SINR) of MMSE receiver is derived for beam-nulling. Then the associated average bit-error rate (BER) of beam-nulling is given numerically and verified by simulation results. Simulation results are provided to compare beam-nulling with beamforming at the same data rate. To improve performance further, beam-nulling is concatenated with linear dispersion code. Simulation results are also provided to compare the concatenated scheme with beamforming.\",\"PeriodicalId\":383593,\"journal\":{\"name\":\"2009 4th International Symposium on Wireless Pervasive Computing\",\"volume\":\"34 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-07-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2009 4th International Symposium on Wireless Pervasive Computing\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICC.2009.5198804\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 4th International Symposium on Wireless Pervasive Computing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICC.2009.5198804","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Performance of Adaptive MIMO System Based on Beam-Nulling
In this paper, "beam-nulling" is proposed to send signals over a generated subspace orthogonal to the weakest spatial subchannel fed back from the receiver. Signal-to-interference-plus-noise ratio (SINR) of MMSE receiver is derived for beam-nulling. Then the associated average bit-error rate (BER) of beam-nulling is given numerically and verified by simulation results. Simulation results are provided to compare beam-nulling with beamforming at the same data rate. To improve performance further, beam-nulling is concatenated with linear dispersion code. Simulation results are also provided to compare the concatenated scheme with beamforming.
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