A study on the Adaptive Subcarrier Assignment techniques for interference suppression in OFDM System 


Vol. 29,  No. 8, pp. 889-897, Aug.  2004


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  Abstract

In this Paper, we propose the algonthm to provide stable communication In OFDM system under the highly interfered environment by the same/dlfferent system Which use same bandwidth or other Jamming signal, 1c, radar signal The proposed Adaptive Subcarrier Assignment(ASA) method first estimates the leceived power of each Subcarrier in the block of FFT of OFDM receivei Then we estimate the threshold level Which is the average power of the transmittcd OFDM signal with AWON The highly interfered subcarrien, Which are greater powers than the specified threshold level, are rejected 1n the next transmission and the only non-interfeied subcarrcrs ale selected as the next transmission This algorithm provides stable communication 1Il any OFDM systems without changing the physical layer under the highly interfeied communication envnonment We estimatcd the status of the subcarneis based on the bandwidth and power of the jammmg signal and showed the performance at the ploposed algoiithm by the simulation

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  Cite this article

[IEEE Style]

S. Cho, Y. Park, J. Choi, D. Lee, W. Chung, "A study on the Adaptive Subcarrier Assignment techniques for interference suppression in OFDM System," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 8, pp. 889-897, 2004. DOI: .

[ACM Style]

Sung-gu Cho, Yong-Wan Park, Jeong-Hee Choi, Dong-Hahk Lee, and Wonsuk Chung. 2004. A study on the Adaptive Subcarrier Assignment techniques for interference suppression in OFDM System. The Journal of Korean Institute of Communications and Information Sciences, 29, 8, (2004), 889-897. DOI: .

[KICS Style]

Sung-gu Cho, Yong-Wan Park, Jeong-Hee Choi, Dong-Hahk Lee, Wonsuk Chung, "A study on the Adaptive Subcarrier Assignment techniques for interference suppression in OFDM System," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 8, pp. 889-897, 8. 2004.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880