{"title":"瑞利衰落信道中IQ不平衡OFDM通信的分集效应","authors":"H. Ryu","doi":"10.1109/ICCSN.2010.78","DOIUrl":null,"url":null,"abstract":"Orthogonal frequency division multiplexing (OFDM) has been used widely in several communication systems. However, OFDM is very sensitive to the radio frequency (RF) impairments. One of the serious major impairments is the IQ imbalance between In-phase (I) and Quadrature (Q) branches. This IQ imbalance can be the mail reason of bit error rate (BER) performance degradation in the high-speed OFDM communication system. In this paper, the closed form of BER of OFDM with IQ imbalance is derived in the Rayleigh fading channel and novelly investigates the effect of transmit and receive diversity on this OFDM communication system with Q imbalance in the Rayleigh fading channel. Via the computer simulation, it is verified that analytical result is very close to simulation result. So, it is very useful and convenient to evaluate the BER performance of multi-input multi-output (MIMO) system with IQ imbalance in the Rayleigh fading environment.","PeriodicalId":255246,"journal":{"name":"2010 Second International Conference on Communication Software and Networks","volume":"2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Diversity Effect of OFDM Communication with IQ Imbalance in the Rayleigh Fading Channel\",\"authors\":\"H. Ryu\",\"doi\":\"10.1109/ICCSN.2010.78\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Orthogonal frequency division multiplexing (OFDM) has been used widely in several communication systems. However, OFDM is very sensitive to the radio frequency (RF) impairments. One of the serious major impairments is the IQ imbalance between In-phase (I) and Quadrature (Q) branches. This IQ imbalance can be the mail reason of bit error rate (BER) performance degradation in the high-speed OFDM communication system. In this paper, the closed form of BER of OFDM with IQ imbalance is derived in the Rayleigh fading channel and novelly investigates the effect of transmit and receive diversity on this OFDM communication system with Q imbalance in the Rayleigh fading channel. Via the computer simulation, it is verified that analytical result is very close to simulation result. So, it is very useful and convenient to evaluate the BER performance of multi-input multi-output (MIMO) system with IQ imbalance in the Rayleigh fading environment.\",\"PeriodicalId\":255246,\"journal\":{\"name\":\"2010 Second International Conference on Communication Software and Networks\",\"volume\":\"2 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-02-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 Second International Conference on Communication Software and Networks\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCSN.2010.78\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 Second International Conference on Communication Software and Networks","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCSN.2010.78","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Diversity Effect of OFDM Communication with IQ Imbalance in the Rayleigh Fading Channel
Orthogonal frequency division multiplexing (OFDM) has been used widely in several communication systems. However, OFDM is very sensitive to the radio frequency (RF) impairments. One of the serious major impairments is the IQ imbalance between In-phase (I) and Quadrature (Q) branches. This IQ imbalance can be the mail reason of bit error rate (BER) performance degradation in the high-speed OFDM communication system. In this paper, the closed form of BER of OFDM with IQ imbalance is derived in the Rayleigh fading channel and novelly investigates the effect of transmit and receive diversity on this OFDM communication system with Q imbalance in the Rayleigh fading channel. Via the computer simulation, it is verified that analytical result is very close to simulation result. So, it is very useful and convenient to evaluate the BER performance of multi-input multi-output (MIMO) system with IQ imbalance in the Rayleigh fading environment.
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