{"title":"用于3GPP LTE系统的低计算I/ q不匹配补偿器","authors":"Terng-Yin Hsu, Wei-Chi Lai, Shao-Ying Yeh","doi":"10.1109/CSQRWC.2012.6294955","DOIUrl":null,"url":null,"abstract":"Variations of I/Q gains and phases of RF frontend, namely I/Q mismatch (I/Q-M), are the important impact in OFDM-based wireless accesses. Making a 2×2 MIMO-OFDM modem of 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) work properly, this work investigates a low computing cross-ratio engine to deal with serious I/Q-M by using only synchronization signal (SS). Through performance evaluation, our approach incurs a 0.3-dB SNR loss to maintain BER<;10-5 at 1-dB gain error and 15°-phase error. Hence, this work not only ensures adequate performances, but also makes low computing I/Q-M estimation and compensation.","PeriodicalId":250360,"journal":{"name":"CSQRWC 2012","volume":"33 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A low computing I/Q-mismatch compensator for 3GPP LTE systems\",\"authors\":\"Terng-Yin Hsu, Wei-Chi Lai, Shao-Ying Yeh\",\"doi\":\"10.1109/CSQRWC.2012.6294955\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Variations of I/Q gains and phases of RF frontend, namely I/Q mismatch (I/Q-M), are the important impact in OFDM-based wireless accesses. Making a 2×2 MIMO-OFDM modem of 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) work properly, this work investigates a low computing cross-ratio engine to deal with serious I/Q-M by using only synchronization signal (SS). Through performance evaluation, our approach incurs a 0.3-dB SNR loss to maintain BER<;10-5 at 1-dB gain error and 15°-phase error. Hence, this work not only ensures adequate performances, but also makes low computing I/Q-M estimation and compensation.\",\"PeriodicalId\":250360,\"journal\":{\"name\":\"CSQRWC 2012\",\"volume\":\"33 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-07-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"CSQRWC 2012\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CSQRWC.2012.6294955\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"CSQRWC 2012","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CSQRWC.2012.6294955","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A low computing I/Q-mismatch compensator for 3GPP LTE systems
Variations of I/Q gains and phases of RF frontend, namely I/Q mismatch (I/Q-M), are the important impact in OFDM-based wireless accesses. Making a 2×2 MIMO-OFDM modem of 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) work properly, this work investigates a low computing cross-ratio engine to deal with serious I/Q-M by using only synchronization signal (SS). Through performance evaluation, our approach incurs a 0.3-dB SNR loss to maintain BER<;10-5 at 1-dB gain error and 15°-phase error. Hence, this work not only ensures adequate performances, but also makes low computing I/Q-M estimation and compensation.
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