{"title":"基于脉冲整形的多用户OFDM系统PAPR降低方法","authors":"R. Reine, Z. Zang","doi":"10.1109/ICIEA.2016.7603931","DOIUrl":null,"url":null,"abstract":"Multiuser orthogonal frequency division multiplexing (MU-OFDM) communication systems have higher system efficiency compared to single user OFDM systems. However, the high peak-to-average power ratio (PAPR) of the MU-OFDM signal is considered as one of the major drawbacks of the MU-OFDM systems. This paper proposes to use computationally efficient optimisation approach to design a set of orthogonal pulse shaping waveforms to reduce the PAPR of the MU-OFDM signal. Autocorrelation and cross-correlation of the pulse shaping waveforms are specified in the constraints in order to minimise intersymbol interference (ISI) and co-channel interference (CCI). Methods to solve the optimal waveform set design problem are presented. Numerical results illustrate that the designed set of pulse shaping waveforms is efficient in reducing the PAPR of the OFDM signal in multiuser communication systems.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Pulse shaping approach to PAPR reduction for multiuser OFDM systems\",\"authors\":\"R. Reine, Z. Zang\",\"doi\":\"10.1109/ICIEA.2016.7603931\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Multiuser orthogonal frequency division multiplexing (MU-OFDM) communication systems have higher system efficiency compared to single user OFDM systems. However, the high peak-to-average power ratio (PAPR) of the MU-OFDM signal is considered as one of the major drawbacks of the MU-OFDM systems. This paper proposes to use computationally efficient optimisation approach to design a set of orthogonal pulse shaping waveforms to reduce the PAPR of the MU-OFDM signal. Autocorrelation and cross-correlation of the pulse shaping waveforms are specified in the constraints in order to minimise intersymbol interference (ISI) and co-channel interference (CCI). Methods to solve the optimal waveform set design problem are presented. Numerical results illustrate that the designed set of pulse shaping waveforms is efficient in reducing the PAPR of the OFDM signal in multiuser communication systems.\",\"PeriodicalId\":283114,\"journal\":{\"name\":\"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)\",\"volume\":\"4 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-06-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICIEA.2016.7603931\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICIEA.2016.7603931","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Pulse shaping approach to PAPR reduction for multiuser OFDM systems
Multiuser orthogonal frequency division multiplexing (MU-OFDM) communication systems have higher system efficiency compared to single user OFDM systems. However, the high peak-to-average power ratio (PAPR) of the MU-OFDM signal is considered as one of the major drawbacks of the MU-OFDM systems. This paper proposes to use computationally efficient optimisation approach to design a set of orthogonal pulse shaping waveforms to reduce the PAPR of the MU-OFDM signal. Autocorrelation and cross-correlation of the pulse shaping waveforms are specified in the constraints in order to minimise intersymbol interference (ISI) and co-channel interference (CCI). Methods to solve the optimal waveform set design problem are presented. Numerical results illustrate that the designed set of pulse shaping waveforms is efficient in reducing the PAPR of the OFDM signal in multiuser communication systems.
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