基于循环前缀估计技术的空时编码OFDM系统性能评价

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI:10.1109/SPCOM.2004.1458381

V. K. Shrivastava, D. K. Mehra

{"title":"基于循环前缀估计技术的空时编码OFDM系统性能评价","authors":"V. K. Shrivastava, D. K. Mehra","doi":"10.1109/SPCOM.2004.1458381","DOIUrl":null,"url":null,"abstract":"Space-time coding (STC) offers an effective transmit-antenna diversity technique to combat fading. On the other hand, the orthogonal frequency division multiplexing (OFDM) technique transforms a frequency-selective fading channel into parallel correlated fading channels. Hence, in the presence of frequency selectivity, it is natural to combine STC with the OFDM systems. The channel state information is an essential requirement in the case of ST OFDM systems. In this paper, a unique channel estimation technique for MIMO OFDM systems exploiting the cyclic prefix of OFDM symbols has been proposed. The performance of the ST coded OFDM systems have been evaluated for realistic channel conditions.","PeriodicalId":424981,"journal":{"name":"2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.","volume":"44 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Performance evaluation of space-time coded OFDM systems employing cyclic prefix estimation techniques\",\"authors\":\"V. K. Shrivastava, D. K. Mehra\",\"doi\":\"10.1109/SPCOM.2004.1458381\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Space-time coding (STC) offers an effective transmit-antenna diversity technique to combat fading. On the other hand, the orthogonal frequency division multiplexing (OFDM) technique transforms a frequency-selective fading channel into parallel correlated fading channels. Hence, in the presence of frequency selectivity, it is natural to combine STC with the OFDM systems. The channel state information is an essential requirement in the case of ST OFDM systems. In this paper, a unique channel estimation technique for MIMO OFDM systems exploiting the cyclic prefix of OFDM symbols has been proposed. The performance of the ST coded OFDM systems have been evaluated for realistic channel conditions.\",\"PeriodicalId\":424981,\"journal\":{\"name\":\"2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.\",\"volume\":\"44 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-12-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SPCOM.2004.1458381\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SPCOM.2004.1458381","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

摘要

空时编码(STC)为对抗衰落提供了一种有效的发射天线分集技术。另一方面，正交频分复用(OFDM)技术将频率选择性衰落信道转换为并行相关衰落信道。因此，在存在频率选择性的情况下，将STC与OFDM系统相结合是很自然的。在ST OFDM系统中，信道状态信息是一个基本要求。本文提出了一种独特的利用OFDM符号循环前缀的MIMO OFDM系统信道估计技术。ST编码OFDM系统的性能在实际信道条件下进行了评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Performance evaluation of space-time coded OFDM systems employing cyclic prefix estimation techniques

Space-time coding (STC) offers an effective transmit-antenna diversity technique to combat fading. On the other hand, the orthogonal frequency division multiplexing (OFDM) technique transforms a frequency-selective fading channel into parallel correlated fading channels. Hence, in the presence of frequency selectivity, it is natural to combine STC with the OFDM systems. The channel state information is an essential requirement in the case of ST OFDM systems. In this paper, a unique channel estimation technique for MIMO OFDM systems exploiting the cyclic prefix of OFDM symbols has been proposed. The performance of the ST coded OFDM systems have been evaluated for realistic channel conditions.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.

自引率

0.00%

发文量