{"title":"一种改进的基于量化方法的OFDM-QAM信号PAPR降低裁剪方案","authors":"Zhen He","doi":"10.12733/JICS20105631","DOIUrl":null,"url":null,"abstract":"In recent years, Orthogonal Frequency Division Multiplexing (OFDM) has received widespread attention for high-data rate transmission. One drawback of OFDM is the high Peak-to-average Power Ratio (PAPR). A novel scheme referred to as Quantization Clipping (QC) is proposed to solve the high PAPR problem in OFDM-QAM system. For the QC scheme, we preset several different clipping thresholds, and then quantize the input signal to a group of preset thresholds. Simulation results show that the new scheme can significantly improve the BER performance while guaranteeing the improvement in the PAPR performance of the OFDM-QAM system.","PeriodicalId":213716,"journal":{"name":"The Journal of Information and Computational Science","volume":"273 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Modified Clipping Scheme for PAPR Reduction of OFDM-QAM Signals Based on Quantization Method\",\"authors\":\"Zhen He\",\"doi\":\"10.12733/JICS20105631\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In recent years, Orthogonal Frequency Division Multiplexing (OFDM) has received widespread attention for high-data rate transmission. One drawback of OFDM is the high Peak-to-average Power Ratio (PAPR). A novel scheme referred to as Quantization Clipping (QC) is proposed to solve the high PAPR problem in OFDM-QAM system. For the QC scheme, we preset several different clipping thresholds, and then quantize the input signal to a group of preset thresholds. Simulation results show that the new scheme can significantly improve the BER performance while guaranteeing the improvement in the PAPR performance of the OFDM-QAM system.\",\"PeriodicalId\":213716,\"journal\":{\"name\":\"The Journal of Information and Computational Science\",\"volume\":\"273 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-03-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Journal of Information and Computational Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.12733/JICS20105631\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of Information and Computational Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.12733/JICS20105631","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Modified Clipping Scheme for PAPR Reduction of OFDM-QAM Signals Based on Quantization Method
In recent years, Orthogonal Frequency Division Multiplexing (OFDM) has received widespread attention for high-data rate transmission. One drawback of OFDM is the high Peak-to-average Power Ratio (PAPR). A novel scheme referred to as Quantization Clipping (QC) is proposed to solve the high PAPR problem in OFDM-QAM system. For the QC scheme, we preset several different clipping thresholds, and then quantize the input signal to a group of preset thresholds. Simulation results show that the new scheme can significantly improve the BER performance while guaranteeing the improvement in the PAPR performance of the OFDM-QAM system.
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