{"title":"SIMO diversity reception in Rayleigh and Rician fading with imperfect channel estimation","authors":"Y. Vasavada, A. Beex, Jeffrey H. Reed","doi":"10.1109/ICACCI.2016.7732030","DOIUrl":null,"url":null,"abstract":"Several new results are presented for optimum (diversity) combining with imperfect channel estimates (OC-ICE). A thresholding effect is demonstrated for the Rician fading channel; it is shown that the OC-ICE performance is near optimal (i.e., similar to that for the maximum ratio combiner (MRC)) below a (Rician K factor dependent) threshold irrespective of the pilot channel received SNR. Above the threshold, the performance degrades and in certain cases approaches the performance of the Rayleigh fading case. A new analytical evaluation of the bit error probability of the OC-ICE in Rician fading is presented. This analysis is based on an observation made in this paper that an effect of imperfect channel estimates is to effectively lower the Rician K factor.","PeriodicalId":371328,"journal":{"name":"2016 International Conference on Advances in Computing, Communications and Informatics (ICACCI)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 International Conference on Advances in Computing, Communications and Informatics (ICACCI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICACCI.2016.7732030","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Several new results are presented for optimum (diversity) combining with imperfect channel estimates (OC-ICE). A thresholding effect is demonstrated for the Rician fading channel; it is shown that the OC-ICE performance is near optimal (i.e., similar to that for the maximum ratio combiner (MRC)) below a (Rician K factor dependent) threshold irrespective of the pilot channel received SNR. Above the threshold, the performance degrades and in certain cases approaches the performance of the Rayleigh fading case. A new analytical evaluation of the bit error probability of the OC-ICE in Rician fading is presented. This analysis is based on an observation made in this paper that an effect of imperfect channel estimates is to effectively lower the Rician K factor.