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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.6 P.613~618

10.1631/jzus.2005.A0613


An efficient training sequences strategy for channel estimation in OFDM systems with transmit diversity


Author(s):  SONG Bo-wei, GUAN Yun-feng, ZHANG Wen-jun

Affiliation(s):  Institute of Image Communication and Information Processing, Shanghai Jiaotong University, Shanghai 200030, China

Corresponding email(s):   myfrog@sjtu.edu.cn, yfguan69@sjtu.edu.cn, zhangwenjun@sjtu.edu.cn

Key Words:  Channel estimation, OFDM, Transmit diversity, Training sequences, Pilots, Space time


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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 A, 2005, 6(6): 613~618.

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publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.A0613"
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EP - 618
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DOI - 10.1631/jzus.2005.A0613


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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Alamouti, S.M., 1998. A simple transmitter diversity scheme for wireless communications. IEEE J. Select. Areas Commun., 16:1451-1458.

[2] Barhumi, I., Leus, G., 2003. Optimal training design for MIMO OFDM systems in mobile wireless channels. IEEE Trans. Signal Proc., 51(6):1615-1624.

[3] Hsieh, M.H., 1998. Channel estimation for OFDM systems based on comb-type pilot arrangement in frequency selective fading channels. IEEE Trans. Consumer Elec., 44(1):931-939.

[4] Jeon, W.G., Paik, K.H., Cho, Y.S., 2000. An efficient channel estimation technique for OFDM system with transmitter diversity. IEEE Int. Symp. Personnel, Indoor and Mobile Radio Commun., 2:1246-1250.

[5] Li, Y., 2000. Pilot-symbol-aided channel estimation for OFDM in wireless systems. IEEE Trans. Veh. Technol., 48:1207-1215.

[6] Li, Y., 2002. Simplified channel estimation for OFDM systems with multiple transmit antennas. IEEE Trans. Wireless Commun., 1(1):67-75.

[7] Negi, R., Cioffi, J., 1998. Pilot tone selection for channel estimation in a mobile OFDM system. IEEE Trans. Consumer Elec., 44(3):1122-1128.

[8] Tarokh, V., Jafarkhani, H., Calderbank, A.R., 1999. Space-time block codes from orthogonal designs. IEEE Trans. Infrm. Theory, 45(5):1456-1467.

[9] van de Beek, J.J., Edfors, O., Sandell, M., Wilson, S.K., Borjesson, P.O., 1995. On Channel Estimation in OFDM Systems. Proc. of 45th IEEE Veh. Tech. Conf., p.815-819.

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