{"title":"OFDM系统的位交织空频编码调制迭代译码","authors":"D. Rende, Xin Li, T. Wong","doi":"10.1109/MILCOM.2003.1290096","DOIUrl":null,"url":null,"abstract":"We present a bit-interleaved space-frequency coded modulation (BI-SFCM) scheme with iterative decoding for orthogonal frequency-division multiplexing (OFDM) systems over frequency-selective channels. BI-SFCM is a space-frequency trellis coding method, based on bit-interleaved coded modulation (BICM) and multiple transmit and receive antennas. OFDM is used to transform a frequency-selective fading channel into multiple flat fading channels, and space-frequency trellis coding combined with bit-interleaving is used to exploit space and frequency diversity. BI-SFCM can provide increased data rates and improved performance. BI-SFCM with iterative decoding (BI-SFCM-ID) is proposed to further improve performance by means of increased coding gain by employing iterative decoding between the outer convolutional code and the inner space-frequency modulation. Analytical bounds and simulations are used to evaluate the performance of BI-SFCM-ID.","PeriodicalId":435910,"journal":{"name":"IEEE Military Communications Conference, 2003. MILCOM 2003.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Bit-interleaved space-frequency coded modulation with iterative decoding for OFDM systems\",\"authors\":\"D. Rende, Xin Li, T. Wong\",\"doi\":\"10.1109/MILCOM.2003.1290096\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We present a bit-interleaved space-frequency coded modulation (BI-SFCM) scheme with iterative decoding for orthogonal frequency-division multiplexing (OFDM) systems over frequency-selective channels. BI-SFCM is a space-frequency trellis coding method, based on bit-interleaved coded modulation (BICM) and multiple transmit and receive antennas. OFDM is used to transform a frequency-selective fading channel into multiple flat fading channels, and space-frequency trellis coding combined with bit-interleaving is used to exploit space and frequency diversity. BI-SFCM can provide increased data rates and improved performance. BI-SFCM with iterative decoding (BI-SFCM-ID) is proposed to further improve performance by means of increased coding gain by employing iterative decoding between the outer convolutional code and the inner space-frequency modulation. Analytical bounds and simulations are used to evaluate the performance of BI-SFCM-ID.\",\"PeriodicalId\":435910,\"journal\":{\"name\":\"IEEE Military Communications Conference, 2003. MILCOM 2003.\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-10-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Military Communications Conference, 2003. MILCOM 2003.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MILCOM.2003.1290096\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Military Communications Conference, 2003. MILCOM 2003.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MILCOM.2003.1290096","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Bit-interleaved space-frequency coded modulation with iterative decoding for OFDM systems
We present a bit-interleaved space-frequency coded modulation (BI-SFCM) scheme with iterative decoding for orthogonal frequency-division multiplexing (OFDM) systems over frequency-selective channels. BI-SFCM is a space-frequency trellis coding method, based on bit-interleaved coded modulation (BICM) and multiple transmit and receive antennas. OFDM is used to transform a frequency-selective fading channel into multiple flat fading channels, and space-frequency trellis coding combined with bit-interleaving is used to exploit space and frequency diversity. BI-SFCM can provide increased data rates and improved performance. BI-SFCM with iterative decoding (BI-SFCM-ID) is proposed to further improve performance by means of increased coding gain by employing iterative decoding between the outer convolutional code and the inner space-frequency modulation. Analytical bounds and simulations are used to evaluate the performance of BI-SFCM-ID.
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