{"title":"Band-Split Parallel Signal Processing DPD for Nonlinear Compensation of Broadband RF Signal","authors":"T. Abe, Y. Yamao","doi":"10.1109/ISWCS.2018.8491244","DOIUrl":null,"url":null,"abstract":"A novel wideband digital predistortion (DPD) technique that can relax the requirement for sampling frequency is proposed. The proposed band-split parallel signal processing DPD can reduce the sampling frequency to the half of normal DPD while compensating all nonlinear terms and achieve the same compensation performance. After presenting the principle of the proposed scheme, the simulation results employing two-component carrier (2CC) LTE-A signal are presented that achieve ACLR of less than −50 dB and EVM of less than 2.5 %. The proposed DPDs with four-band and two-band splitting methods can decrease the sampling frequencies to the half and two thirds of the normal DPD, respectively.","PeriodicalId":272951,"journal":{"name":"2018 15th International Symposium on Wireless Communication Systems (ISWCS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 15th International Symposium on Wireless Communication Systems (ISWCS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISWCS.2018.8491244","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
A novel wideband digital predistortion (DPD) technique that can relax the requirement for sampling frequency is proposed. The proposed band-split parallel signal processing DPD can reduce the sampling frequency to the half of normal DPD while compensating all nonlinear terms and achieve the same compensation performance. After presenting the principle of the proposed scheme, the simulation results employing two-component carrier (2CC) LTE-A signal are presented that achieve ACLR of less than −50 dB and EVM of less than 2.5 %. The proposed DPDs with four-band and two-band splitting methods can decrease the sampling frequencies to the half and two thirds of the normal DPD, respectively.
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