时变信道下MIMO OFDM系统的导频符号模式

2015 International Conference on Electrical and Information Technologies (ICEIT) Pub Date : 2015-03-25 DOI:10.1109/EITECH.2015.7162929

M. Youssefi, J. El Abbadi

{"title":"时变信道下MIMO OFDM系统的导频符号模式","authors":"M. Youssefi, J. El Abbadi","doi":"10.1109/EITECH.2015.7162929","DOIUrl":null,"url":null,"abstract":"This paper presents a new approach to achieve optimal training sequences (OTS) in terms of minimizing the mean-square channel estimation error for spectrally efficient MIMO OFDM systems. It is shown that the OTS are equi-powered, equi-spaced and position orthogonal. However, in special cases we can find that required conditions to achieve optimal pilot design are not satisfied, this means the optimum pilot is unachievable. In this paper, an algorithm is proposed to achieve suboptimum pilot design under time varying channels. To offer high throughput gains, we propose an adaptive pilot scheme in order to optimally use pilot tones over time varying channels.","PeriodicalId":405923,"journal":{"name":"2015 International Conference on Electrical and Information Technologies (ICEIT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Pilot-symbol patterns for MIMO OFDM systems under time varying channels\",\"authors\":\"M. Youssefi, J. El Abbadi\",\"doi\":\"10.1109/EITECH.2015.7162929\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a new approach to achieve optimal training sequences (OTS) in terms of minimizing the mean-square channel estimation error for spectrally efficient MIMO OFDM systems. It is shown that the OTS are equi-powered, equi-spaced and position orthogonal. However, in special cases we can find that required conditions to achieve optimal pilot design are not satisfied, this means the optimum pilot is unachievable. In this paper, an algorithm is proposed to achieve suboptimum pilot design under time varying channels. To offer high throughput gains, we propose an adaptive pilot scheme in order to optimally use pilot tones over time varying channels.\",\"PeriodicalId\":405923,\"journal\":{\"name\":\"2015 International Conference on Electrical and Information Technologies (ICEIT)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-03-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 International Conference on Electrical and Information Technologies (ICEIT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EITECH.2015.7162929\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 International Conference on Electrical and Information Technologies (ICEIT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EITECH.2015.7162929","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 4

摘要

针对频谱高效MIMO OFDM系统，从最小化均方信道估计误差的角度，提出了一种实现最优训练序列的新方法。结果表明，该系统具有等功率、等间距和位置正交的特点。然而，在特殊情况下，我们会发现实现最优先导设计所需的条件不满足，这意味着最优先导无法实现。本文提出了一种时变信道下次优导频设计的算法。为了提供高吞吐量增益，我们提出了一种自适应导频方案，以便在随时间变化的信道上最佳地使用导频音调。

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

Pilot-symbol patterns for MIMO OFDM systems under time varying channels

This paper presents a new approach to achieve optimal training sequences (OTS) in terms of minimizing the mean-square channel estimation error for spectrally efficient MIMO OFDM systems. It is shown that the OTS are equi-powered, equi-spaced and position orthogonal. However, in special cases we can find that required conditions to achieve optimal pilot design are not satisfied, this means the optimum pilot is unachievable. In this paper, an algorithm is proposed to achieve suboptimum pilot design under time varying channels. To offer high throughput gains, we propose an adaptive pilot scheme in order to optimally use pilot tones over time varying channels.

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

2015 International Conference on Electrical and Information Technologies (ICEIT)

自引率

0.00%

发文量