CIR Performance Enhancement by Frequency Offset Estimation in OFDM System 


Vol. 34,  No. 4, pp. 446-452, Apr.  2009


PDF
  Abstract

OFDM system has a disadvantage of sensitiveness about the effect of frequency offset caused by the discord of oscillators in the transmitter and receiver. Either, the frequency offsets in mobile radio channels distort the orthogonality between sub-carriers resulting in the inter-carrier interference(ICI). In this paper, we analyze the effect of the ICI and propose a new method using SC technique. To analyze BER(Bit Error Rate) and CIR(Carrier to Interference Ratio) performance of the proposed method. the simulation program MATLAB is used. By the simulation results, SNR performance is improved by this method. In case the frequency offset is 0.3 and 0.5, SNR gains are over 0.5dB and 1dB in the BPSK modulation and 1dB and 2dB in the QPSK modulation at BER of 10-3 respectively. In addition, CIR performance is improved over 15dB. As a result, the proposed method is more effective to improve the system performance than the conventional method.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

S. Ko, J. Choi, D. Lee, N. Kim, "CIR Performance Enhancement by Frequency Offset Estimation in OFDM System," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 4, pp. 446-452, 2009. DOI: .

[ACM Style]

Seonghui Ko, Junghun Choi, Dongho Lee, and Nam Kim. 2009. CIR Performance Enhancement by Frequency Offset Estimation in OFDM System. The Journal of Korean Institute of Communications and Information Sciences, 34, 4, (2009), 446-452. DOI: .

[KICS Style]

Seonghui Ko, Junghun Choi, Dongho Lee, Nam Kim, "CIR Performance Enhancement by Frequency Offset Estimation in OFDM System," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 4, pp. 446-452, 4. 2009.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)






pISSN : 1226 - 4717
eISSN : 2287 - 3880