New schemes of integer frequency offset estimation using pilots for DVB-T systems
Pages 606 - 610
Abstract
This paper proposes two novel schemes for pilot-aided integer frequency offset (IFO) estimation in orthogonal frequency division multiplexing (OFDM)-based digital video broadcasting-terrestrial (DVB-T) systems. The conventional scheme proposed for estimating the IFO uses only partial information of combinations that pilots can provide, which stems from a rigorous assumption that the channel responses of pilots used for estimating the IFO change very rapidly. Thus, in this paper, we propose the novel IFO estimation schemes exploiting additional information of combinations that pilots can provide to improve the performance of the IFO estimation. The simulation results show that the proposed schemes are highly accurate in terms of the IFO detection probability.
References
[1]
Morelli, M. and Moretti, M. 2008. Integer frequency offset recovery in OFDM transmissions over selective channels. IEEE Trans. Wireless Commun. 7, 12 (Dec. 2008), 5220--5226.
[2]
Filippi, A. and Serbetli, S. 2009. OFDM symbol synchronization using frequency domain pilots in time domain. IEEE Trans. Wireless Commun. 8, 6 (June 2009), 3240--3248.
[3]
Wang, M. M., Xiao, L., Brown, T., and Dong, M. 2009. Optimal symbol timing for OFDM wireless commun. IEEE Trans. Wireless Commun. 8, 10 (Oct. 2009), 5328--5337.
[4]
Shim, E.-S., Kim, S.-T., Song, H.-K., and You, Y.-H. 2007. OFDM carrier frequency offset estimation methods with improved performance. IEEE Trans. Broadcast. 53, 2 (June 2007), 567--573.
[5]
Speth, M., Fechtel, S., Fock, G., and Meyr, H. 2001. Optimum receiver design for OFDM-based broadband transmission - part II: a case study. IEEE Trans. Commun. 49, 4 (Apr. 2001), 571--578.
[6]
Lee, K.-T. and Seo, J.-S. 2007. Pilot-aided iterative frequency offset estimation for digital video broadcasting (DVB) systems. IEEE Trans. Consumer Electron. 53, 1 (Feb. 2007), 11--16.
[7]
ETSI EN 300 744. 2001. Digital video broadcasting (DVB); framing structure, channel coding and modulation for digital terrestrial television. ETSI, Tech. Rep., (Jan. 2001).
Index Terms
- New schemes of integer frequency offset estimation using pilots for DVB-T systems
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Published In
June 2010
1371 pages
ISBN:9781450300629
DOI:10.1145/1815396
- General Chairs:
- Ahmed Helmy,
- Peter Mueller,
- Program Chair:
- Yan Zhang
Copyright © 2010 ACM.
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Published: 28 June 2010
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IWCMC '10
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IWCMC '10: 2010 International Wireless Communications and Mobile Computing Conference
June 28 - July 2, 2010
Caen, France
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