Analysis of Physical Layer Performance for MB-OFDM UWB System 


Vol. 34,  No. 10, pp. 293-299, Oct.  2009


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  Abstract

UWB(Ultra Wide Band) is an effective technique that enables coexistence with other radio systems using very short pulses and spread spectrum. Multi band OFDM(MB-OFDM) will be used in same band from 3.1[㎓] to 10.6[㎓] as well as UWB. But, As using the same frequency band, not a few interference problems have been occurred. In this paper, the function of the merging MB-OFDM UWB communication system has been analyzed, and also BER function of the system was analyzed through simulation with the representative physical channel circumstances. Based on the analysis, when the Doppler speed was altered in frequency non-selective fading channel, it was revealed that BER function barely changes when the channel is perfect. But the transferred data have been all corrupted when the channel compensation has not been performed. Also, when pilot symbol coherence scheme was applied with the channel compensation technique, it was confirmed that functional degradation occurs by 2∼3㏈ compare to the perfectly compensated channel. And in frequency selective fading channel, as compared with the small functional degradation caused by the path-delay smaller than the Guard band, the significant functional degradation occurs when the path-delay exceeds the guard band range.

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  Cite this article

[IEEE Style]

M. S. Lee, "Analysis of Physical Layer Performance for MB-OFDM UWB System," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 10, pp. 293-299, 2009. DOI: .

[ACM Style]

Moon Seung Lee. 2009. Analysis of Physical Layer Performance for MB-OFDM UWB System. The Journal of Korean Institute of Communications and Information Sciences, 34, 10, (2009), 293-299. DOI: .

[KICS Style]

Moon Seung Lee, "Analysis of Physical Layer Performance for MB-OFDM UWB System," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 10, pp. 293-299, 10. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880