A Subcarrier-based Virtual Multiple Antenna Technique for OFDM Cellular Systems 


Vol. 31,  No. 10, pp. 981-990, Oct.  2006


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  Abstract

In this paper, we introduce the concept of a subcarrier-based virtual multiple antennas (SV-MIMO) for OFDM cellular systems, where the multiple antenna techniques are performed on a set of subcarriers, not on the actual multiple antennas. The virtual multiple antenna system can support multiple users simultaneously as well as reduce inter-cell interference (ICI) form adjacent cells with a single antenna. Also, this technique is easily extended to multiple antenna environments. The virtual multiple antenna techniques can be divided into virtual smart antenna technique and a virtual MIMO technique. Especially, this method effectively reduces ICI at cell boundary with frequency reuse factor equal to 1, and can support flexible resource allocation depending on the amount of interference. It is shown by simulation that the proposed method is superior to conventional method under the same condition of data transmission.

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  Cite this article

[IEEE Style]

K. I. Lee, H. S. Ko, K. S. Woo, Y. Ko, Y. J. Kim, J. Y. Ahn, Y. S. Cho, "A Subcarrier-based Virtual Multiple Antenna Technique for OFDM Cellular Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 10, pp. 981-990, 2006. DOI: .

[ACM Style]

Kyu In Lee, Hyun Soo Ko, Kyung Soo Woo, Yo-han Ko, Yeong Jun Kim, Jae Young Ahn, and Yong Soo Cho. 2006. A Subcarrier-based Virtual Multiple Antenna Technique for OFDM Cellular Systems. The Journal of Korean Institute of Communications and Information Sciences, 31, 10, (2006), 981-990. DOI: .

[KICS Style]

Kyu In Lee, Hyun Soo Ko, Kyung Soo Woo, Yo-han Ko, Yeong Jun Kim, Jae Young Ahn, Yong Soo Cho, "A Subcarrier-based Virtual Multiple Antenna Technique for OFDM Cellular Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 10, pp. 981-990, 10. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880