Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32601
Novel Schemes of Pilot-Aided Integer Frequency Offset Estimation for OFDM-Based DVB-T Systems

Authors: Youngyoon Lee, Dahae Chong, Myungsoo Lee, Seongho Chae, Seokho Yoon


This paper proposes two novel schemes for pilot-aided integer frequency offset (IFO) estimation in orthogonal frequency division multiplexing (OFDM)-based digital video broadcastingterrestrial (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 all information of combinations that pilots can provide to improve the performance of IFO estimation. The simulation results show that the proposed schemes are highly accurate in terms of the IFO detection probability.

Keywords: OFDM, DVB-T, pilot, IFO, estimation

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1725


[1] R. V. Nee and R. Prasad, OFDM for Wireless Multimedia Communications. London, England: Artech House, 2000.
[2] S. Chang and E. J. Powers, "Efficient frequency-offset estimation in OFDM-based WLAN systems," Electron. Lett., vol. 39, no. 21, pp. 1554- 1555, Oct. 2003.
[3] K.-T. Lee and J.-S. Seo, "Pilot-aided iterative frequency offset estimation for digital video broadcasting (DVB) systems," IEEE Trans. Consumer Electron., vol. 53, no. 1, pp. 11-16, Feb. 2007.
[4] A. Filippi and S. Serbetli, "OFDM symbol synchronization using frequency domain pilots in time domain," IEEE Trans. Wireless Commun., vol. 8, no. 6, pp. 3240-3248, June 2009.
[5] M. Morelli, A. N. D-Andrea, and U. Mengali, "Frequency ambiguity resolution in OFDM systems," IEEE Commun. Lett., vol. 4, no. 4, pp. 134-136, Apr. 2000.
[6] ETSI EN 300 744, "Digital video broadcasting (DVB); framing structure, channel coding and modulation for digital terrestrial television," ETSI, Tech. Rep., Jan. 2001.