Browse > Article

Performance of MIMO-OFDM systems with multi-beamforming based on MMSE  

Kim, Chan-Kyu (Department of Electronic Engineering Hanbat University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.48, no.6, 2011 , pp. 6-13 More about this Journal
Abstract
Multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) with space-time coding (STC) is a promising technology for future wireless communication systems. However, MIMO-OFDM systems are greatly impaired by large cochannel interference (CCI) from the multiple transmitters. In this paper, we propose pre-fast Fourier transform (FFT) multibeamforming based on MMSE(minimizing the mean squared error) for a MIMO-OFDM system to preserves the STC diversity and to remove the CCI. The improvement in bit error rate is investigated through computer simulation of a MIMO-OFDM system in a multipath channel with CCI.
Keywords
OFDM; multibeamforming; MMSE;
Citations & Related Records
연도 인용수 순위
  • Reference
1 C. K. Kim and Y. S. Cho, "Pre-FFT adaptive bemaforming algorithm for OFDM systems with array antenna," IEICE Trans. Commun., Vol. E86-B, No.3, pp. 1144-1148, March, 2003.
2 F. Ivanek, "Convergence and competition on the way toward 4G: Where are we going? In Proc. IEEE Radio Wireless Symp., pp. 265-268, Jan., 2007.
3 Y. Li and N. R. Sollenberger, "Adaptive antenna arrays for OFDM systems cochannel intereference," IEEE Trans. Commun., vol.47, no.3, pp.217-229, Feb. 1999.   DOI
4 J. Li, K. B. Letaief, and Z. Cao, "Co-channel interference cancellation for space-time coded OFDM system," IEEE Tran. Commun., vol.2,no.1,pp.41-49, Jan. 2003.
5 Henfnawi, M., Millette, S, "Performance evaluation of space-time coded smart antenna systems in frequency selective channels," WCT 2003, pp.290-296
6 N. Achoura and R. Bouallegue, "Multi-user detection for MIMO-OFDM system using joint adaptive Beamforming," ICTTA2008, 3rd ,pp.1-5, Apr.2008.
7 J. Lorincz and D. Begusic, "Adaptive beamforming structure with STBC for IEEE 802.11n WLAN systems," SoftCOM 2008, 16th, pp. 258-263, Sept. 2008.
8 E. G. Larsson and P. Stoica, "Space-time block coding for wireless communications," Cambridge, 2003.
9 S. Haykin, Adaptive filter theory, Prentice Hall, 1996.
10 A. Paulraj, D. Gore, R. Nabar, and H. Bolcskei, "An Overview of MIMO communications-A Key to gigabit wireless," Proceedings of the IEEE, vol.92,no.2,pp.198-218,Feb. 2004.   DOI   ScienceOn
11 S. M. Alamouti, "A simple transmitter diversity scheme for wireless communications," IEEE J. Select. Area Commun. Vol. 16, No. 8, pp. 1451-1458, Oct. 1998.   DOI   ScienceOn
12 V. Tarokh, N. Seshadri, and A. R.Calderbank, "Space-time codes for high data rate wireless communication: Performance criterion and code construction," IEEE Trans. Inform. Theory, vol.4,pp.744-765,Mar.1998.
13 Richard D. TJ. Van Nee and Ramjee Prasad, "OFDM for wireless multimedia communication," Artech House, 2000.
14 Ahmadi,S., "An overview of next-generation mobile WiMAX technology," IEEE comm. Vol.47, no.6, 2009, pp. 84-98.