| An efficient training sequences strategy for channel estimation in OFDM systems with transmit diversity |
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| 引用本文： | 宋伯炜,管云峰,张文军. An efficient training sequences strategy for channel estimation in OFDM systems with transmit diversity[J]. 浙江大学学报(A卷英文版), 2005, 6(6): 613-618. DOI: 10.1007/BF02841774 |
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| 作者姓名： | 宋伯炜 管云峰 张文军 |
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| 作者单位： | Institute of Image Communication and Information Processing，Shanghai Jiaotong University，Shanghai 200030，China，Institute of Image Communication and Information Processing，Shanghai Jiaotong University，Shanghai 200030，China，Institute of Image Communication and Information Processing，Shanghai Jiaotong University，Shanghai 200030，China |
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| 基金项目： | 国家科技攻关项目，中国科学院资助项目 |
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| 摘 要： | INTRODUCTION Orthogonal frequency division multiplexing (OFDM) is now a popular technique for high data rate wireless communication. Due to its simple imple-mentation and attractive performance against fre-quency-selective wireless fading channels, it has been adopted in several wireless standards such as digital audio broadcasting (DAB), digital video broadcasting (DVB), IEEE 802.11a local area network (LAN), IEEE 802.16a metropolitan area network (MAN) and asymmetric digital s…
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| 关 键 词： | OFDM 直交频率分割多路技术 时序策略 信道估计 传播多样性 |
| 收稿时间： | 2004-10-18 |
| 修稿时间： | 2004-12-24 |
An efficient training sequences strategy for channel estimation in OFDM systems with transmit diversity |
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| Song Bo-wei,Guan Yun-feng,Zhang Wen-jun. An efficient training sequences strategy for channel estimation in OFDM systems with transmit diversity[J]. Journal of Zhejiang University Science, 2005, 6(6): 613-618. DOI: 10.1007/BF02841774 |
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| Authors: | Song Bo-wei Guan Yun-feng Zhang Wen-jun |
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| Affiliation: | (1) Institute of Image Communication and Information Processing, Shanghai Jiaotong University, 200030 Shanghai, China |
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| Abstract: | This paper deals with channel estimation for orthogonal frequency-division multiplexing (OFDM) systems with transmit diversity. Space time coded OFDM systems, which can provide transmit diversity, require perfect channel estimation to improve communication quality. In actual OFDM systems, training sequences are usually used for channel estimation. The authors propose a training based channel estimation strategy suitable for space time coded OFDM systems. This novel strategy provides enhanced performance, high spectrum efficiency and relatively low computation complexity. |
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| Keywords: | Channel estimation OFDM Transmit diversity Training sequences Pilots Space time |
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