Browse > Article

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

Lee, Kyu-In (중앙대학교 디지털통신연구실)
Ko, Hyun-Soo (중앙대학교 디지털통신연구실)
Woo, Kyung-Soo (중앙대학교 디지털통신연구실)
Ko, Yo-Han (중앙대학교 디지털통신연구실)
Kim, Yeong-Jun (중앙대학교 디지털통신연구실)
Ahn, Jae-Young (한국전자통신연구원 차세대무선전송연구팀)
Cho, Yong-Soo (중앙대학교 디지털통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.10C, 2006 , pp. 981-990 More about this Journal
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 a 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.
Keywords
OFDM; SV-MIMO; STBC; interference cancellation; Smart antenna;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. G. Andrews, 'Interference cancellation for cellular systems: a contemporary overview,' IEEE Wireless Commun. Magazine, vol. 12, pp. 19-29, Apr. 2005   DOI
2 K. W. Park, K. I. Lee, J. Y. Ahn, and Y. S. Cho., 'An Intercell Interference Cancellation Method for OFDM-Based Cellular Systems Using a Virtual Smart Antenna,' Int. Symp. on Personal, Indoor and Mobile Radio Communications (PIMRC2005), Sep. 2005
3 A. F. Naguib, N. Seshadri, and A. R. Calderbank, 'Applications of space-time block codes and interference suppression for high capacity and high data rate wireless systems,' in Proc. 32nd Asilomar Conf. Signals, Systems, and Computers, vol. 2, pp. 1803-1810, Nov. 1998
4 P. W. Wolniansky, C. J. Foschini, G. D. Golden, and R. A. Valenzuela, 'V-BLAST: An architecutre for realizing very high data rates over the rich-scattering wireless channel,' Proc. IEEE ISSSE-98, pp. 295-300, Sept. 1998
5 P. Vandenameele, L. V. D. Perre, and M. Engels, Space Divsion Multiple Access for Wireless Local Area Networks, Boston: Kluwer Academic Publishers, 2001
6 K. I. Lee, H. S. J. Y. Ahn, and Y. S. Cho., 'An Inter-cell Interference Cancellation Method for OFDM-based Cellular Systems Using a Virtual MIMO,' VTC 2006-Fall, Sep. 2006