{"title":"Channel Estimator Designs For Emerging 5G New Radio Cellular Systems","authors":"Rakesh Munagala, Rohit Budhiraja","doi":"10.1109/NCC48643.2020.9056078","DOIUrl":null,"url":null,"abstract":"The 5G new radio (NR) cellular system transmits demodulation reference signals (DM-RS) for a user to estimate precoded channel. The DM-RS can be optionally transmitted at various orthogonal frequency division multiplexing (OFDM) symbols. The 5G NR specifications does not explicitly tell how many DM-RS should be used, and needs to be decided by system designers. This work designs various channel estimators for the DM-RS, and based on the MSE performance, proposes an algorithm to decide the number of DM-RS required at a particular user speed.","PeriodicalId":183772,"journal":{"name":"2020 National Conference on Communications (NCC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 National Conference on Communications (NCC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NCC48643.2020.9056078","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
The 5G new radio (NR) cellular system transmits demodulation reference signals (DM-RS) for a user to estimate precoded channel. The DM-RS can be optionally transmitted at various orthogonal frequency division multiplexing (OFDM) symbols. The 5G NR specifications does not explicitly tell how many DM-RS should be used, and needs to be decided by system designers. This work designs various channel estimators for the DM-RS, and based on the MSE performance, proposes an algorithm to decide the number of DM-RS required at a particular user speed.
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