[1] Li Wei, Cheng Shixin, Chen Ming,. Different known guard intervals for single/multi-carrier transceiver [J]. Journal of Southeast University (English Edition), 2006, 22 (1): 11-15. [doi:10.3969/j.issn.1003-7985.2006.01.003]

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Different known guard intervals for single/multi-carrier transceiver()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

22

Issue:

2006 1

Page:

11-15

Research Field:

Information and Communication Engineering

Publishing date:

2006-03-20

Info

Title:

Different known guard intervals for single/multi-carrier transceiver

Author(s):

Li Wei;  Cheng Shixin;  Chen Ming

National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China

Keywords:

cyclic prefix;  zero padding;  fixed symbol padding;  channel estimation

PACS:

TN911.5

DOI:

10.3969/j.issn.1003-7985.2006.01.003

Abstract:

To enhance the bandwidth efficiency of the guard interval(GI)assisted wireless communication system, an attractive scheme is proposed, which combines the functions of pilots and the GI together, so that the pilot resource used for estimating channel state is saved.Based on the proposed different known guard intervals(DKGI), the time-domain channel estimation can be simply applied on the receiver side.After channel estimation, the receiver can employ the cyclic convolution restoring(CCR)function to reconstruct the cyclical convolution relationship between the signal and the channel, by which the receiver can also achieve good performance through the conventional 1-tap frequency domain equalization(FDE).

References:

[1] Neigi R, Cioffi J.Pilot tone selection for channel estimation in a mobile OFDM system [J].IEEE Transactions on Consumer Electronics, 1998, 44(3):1122-1128.
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[4] Wang Z D, Georgios B G.Wireless multicarrier communications [J].IEEE Signal Processing Magazine, 2000, 17(3):29-48.
[5] Wang Z D, Georgios B G, Pierre D.Cyclic prefixing or zero padding for wireless multicarrier transmissions [J].IEEE Transactions on Communications, 2002, 50(12):2136-2148.
[6] Petre F, Leus G, Deneire L, et al.Downlink frequency domain chip equalization for single-carrier block transmission DS-CDMA with known symbol padding [C]//Global Telecommunications Conference.Taipei, 2002: 453-457.
[7] Witschnig H, Mayer T, Springer A, et al.A different look on cyclic prefix for SC/FDE [C]//Personal, Indoor and Mobile Radio Communications.Lisbon, Portugal, 2002: 824-828.
[8] Witschnig H, Mayer T, Maurer L, et al.The advantages of a known sequence versus cyclic prefix in a SCFDE system [C]//Wireless Personal Multimedia Communications.Honolulu, Howaii, 2002: 1328-1332.
[9] Huemer M, Witschnig H, Hausner J.Unique word based phase tracking algorithms for SCFDE systems [C]//Global Telecommunications Conference.San Francisco, 2003: 70-74.

Memo

Memo:

Biographies: Li Wei(1976—), male, graduate;Cheng Shixin(corres-ponding author), male, professor, sxcheng@seu.edu.cn.

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