{"title":"大规模MIMO系统线性化的功放特性公差","authors":"Jianxin Jing, Jialin Cai, Chao Yu","doi":"10.1109/ICMMT.2018.8563858","DOIUrl":null,"url":null,"abstract":"In this paper, the tolerance of power amplifier's (PA) characteristics is investigated for a shared digital predistortion (DPD) solution for massive multiple-input multiple-output (MIMO) systems. By modeling different behaviors, the range of model coefficients can be employed to indicate the similarity of PAs and calculated by adding an offset to the least-squares objective function. Simulation results of a 16-path transmitter with 16 similar PAs are presented, which show that these PAs can be linearized by only one share DPD and the adjacent channel leakage ratio (ACLR) for all branches can meet the specific spectrum requirement, that is, -45 dBc.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Tolerance on Power Amplifier Characteristics for the Linearization of Massive MIMO Systems\",\"authors\":\"Jianxin Jing, Jialin Cai, Chao Yu\",\"doi\":\"10.1109/ICMMT.2018.8563858\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, the tolerance of power amplifier's (PA) characteristics is investigated for a shared digital predistortion (DPD) solution for massive multiple-input multiple-output (MIMO) systems. By modeling different behaviors, the range of model coefficients can be employed to indicate the similarity of PAs and calculated by adding an offset to the least-squares objective function. Simulation results of a 16-path transmitter with 16 similar PAs are presented, which show that these PAs can be linearized by only one share DPD and the adjacent channel leakage ratio (ACLR) for all branches can meet the specific spectrum requirement, that is, -45 dBc.\",\"PeriodicalId\":190601,\"journal\":{\"name\":\"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)\",\"volume\":\"16 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-05-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICMMT.2018.8563858\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICMMT.2018.8563858","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Tolerance on Power Amplifier Characteristics for the Linearization of Massive MIMO Systems
In this paper, the tolerance of power amplifier's (PA) characteristics is investigated for a shared digital predistortion (DPD) solution for massive multiple-input multiple-output (MIMO) systems. By modeling different behaviors, the range of model coefficients can be employed to indicate the similarity of PAs and calculated by adding an offset to the least-squares objective function. Simulation results of a 16-path transmitter with 16 similar PAs are presented, which show that these PAs can be linearized by only one share DPD and the adjacent channel leakage ratio (ACLR) for all branches can meet the specific spectrum requirement, that is, -45 dBc.
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