A Study on Clustered OFCDM with Transmit Antenna Diversity and Coding Associated with Frequency Spreading over Frequency Selective Fading Channel 


Vol. 31,  No. 3, pp. 267-273, Mar.  2006


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  Abstract

This paper improves the effects of clustered OFCDM scheme considering the frequency diversity effect over a frequency selective fading channel. In OFCDM with frequency domain spreading compared to OFDM, we can increase uncorrelated symbols by frequency allocation method of correspondent symbols over the same antenna and differenct antenna after spreading. The simulation results show that the performance of proposed system is improved by approximately 4 dB in σ=0.02μsec, the performance is improved by approximately 2.5dB in large delay spread in a 12-path Rayleigh fading channel with overall the root mean squared delay spread and the maximum Doppler frequency of 20 Hz. Also, the required average received Eb/N0 at the average BER of 10-3 by optimum method is improved by approximately 2.0 dB, compared to that of STA-OFCDM with frequency rearrange. The new method does not require any bandwidth expansion any feedback from the receiver to the transmitter and its computation complexity is similar to clustered OFCDM.

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  Cite this article

[IEEE Style]

K. Ryu and Y. Park, "A Study on Clustered OFCDM with Transmit Antenna Diversity and Coding Associated with Frequency Spreading over Frequency Selective Fading Channel," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 3, pp. 267-273, 2006. DOI: .

[ACM Style]

Kwan-Woong Ryu and Yong-Wan Park. 2006. A Study on Clustered OFCDM with Transmit Antenna Diversity and Coding Associated with Frequency Spreading over Frequency Selective Fading Channel. The Journal of Korean Institute of Communications and Information Sciences, 31, 3, (2006), 267-273. DOI: .

[KICS Style]

Kwan-Woong Ryu and Yong-Wan Park, "A Study on Clustered OFCDM with Transmit Antenna Diversity and Coding Associated with Frequency Spreading over Frequency Selective Fading Channel," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 3, pp. 267-273, 3. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880