{"title":"在基于ofdm的无线通信系统中提高功率效率的传输技术","authors":"R. Dinis, A. Gusmão","doi":"10.1109/RAWCON.1998.709125","DOIUrl":null,"url":null,"abstract":"Due to their robustness against the time-dispersive effects of multipath propagation, OFDM schemes are widely considered for high rate transmission in digital wireless systems. This paper deals with power efficiency issues in OFDM-based broadband wireless systems for the MM-wave band. We consider grossly nonlinear power amplifiers only, within conventional and two-branch transmitter structures; channel coding and interleaving in the frequency domain; a space-diversity, maximal-ratio combining scheme, and, as an alternative to conventional ARQ, similar time-diversity, packet combining schemes. A set of simulation results is presented and discussed.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Transmission techniques for increased power efficiency in OFDM-based wireless communication systems\",\"authors\":\"R. Dinis, A. Gusmão\",\"doi\":\"10.1109/RAWCON.1998.709125\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Due to their robustness against the time-dispersive effects of multipath propagation, OFDM schemes are widely considered for high rate transmission in digital wireless systems. This paper deals with power efficiency issues in OFDM-based broadband wireless systems for the MM-wave band. We consider grossly nonlinear power amplifiers only, within conventional and two-branch transmitter structures; channel coding and interleaving in the frequency domain; a space-diversity, maximal-ratio combining scheme, and, as an alternative to conventional ARQ, similar time-diversity, packet combining schemes. A set of simulation results is presented and discussed.\",\"PeriodicalId\":226788,\"journal\":{\"name\":\"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)\",\"volume\":\"39 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1998-08-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RAWCON.1998.709125\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RAWCON.1998.709125","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Transmission techniques for increased power efficiency in OFDM-based wireless communication systems
Due to their robustness against the time-dispersive effects of multipath propagation, OFDM schemes are widely considered for high rate transmission in digital wireless systems. This paper deals with power efficiency issues in OFDM-based broadband wireless systems for the MM-wave band. We consider grossly nonlinear power amplifiers only, within conventional and two-branch transmitter structures; channel coding and interleaving in the frequency domain; a space-diversity, maximal-ratio combining scheme, and, as an alternative to conventional ARQ, similar time-diversity, packet combining schemes. A set of simulation results is presented and discussed.
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