We apologize for a recent technical issue with our email system, which temporarily affected account activations. Accounts have now been activated. Authors may proceed with paper submissions. PhDFocusTM
CFP last date
20 December 2024
Reseach Article

A Novel MIMO - OFDM Technique for Improving Wireless Communications System Performance based on SF–BC

by Ali Jasim Ramadhan
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 131 - Number 1
Year of Publication: 2015
Authors: Ali Jasim Ramadhan
10.5120/ijca2015907225

Ali Jasim Ramadhan . A Novel MIMO - OFDM Technique for Improving Wireless Communications System Performance based on SF–BC. International Journal of Computer Applications. 131, 1 ( December 2015), 28-31. DOI=10.5120/ijca2015907225

@article{ 10.5120/ijca2015907225,
author = { Ali Jasim Ramadhan },
title = { A Novel MIMO - OFDM Technique for Improving Wireless Communications System Performance based on SF–BC },
journal = { International Journal of Computer Applications },
issue_date = { December 2015 },
volume = { 131 },
number = { 1 },
month = { December },
year = { 2015 },
issn = { 0975-8887 },
pages = { 28-31 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume131/number1/23415-2015907225/ },
doi = { 10.5120/ijca2015907225 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T23:26:07.252438+05:30
%A Ali Jasim Ramadhan
%T A Novel MIMO - OFDM Technique for Improving Wireless Communications System Performance based on SF–BC
%J International Journal of Computer Applications
%@ 0975-8887
%V 131
%N 1
%P 28-31
%D 2015
%I Foundation of Computer Science (FCS), NY, USA
Abstract

In this work, the author implemented a NOVEL technique of multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) based on space frequency - block coding (SF-BC). Where, the implemented code is designed based on the QOC using the techniques of the reconfigurable antennas. The proposed system is implemented using MATLAB program, and the results showing best performance of a wireless communications system of higher coding gain and diversity.

References
  1. Y.Wu, and W.Y.Zou, “Orthogonal frequency division multiplexing a multi-carrier modulation scheme,” IEEE Trans. on Consumer Electronics, vol. 41, no. 3, pp. 392399, Aug. 1995.
  2. Yang, Z. Bai, W. Liu, Z., "A Decision-Aided Residual ISI Cancellation Algorithm for OFDM Systems," Signal Processing, 2006 8th IEEE International Conference on, vol.3, pp.16-20, 2006.
  3. R.j Baxley, and T.Zhou, “PoIr Saving Analysis of Peak-to-Average PoIr Ratio Reduction in OFDM”. IEEE Transactions on Consumer Electronics, VOL.50, NO.3,pp.792-798, August 2004 World Academy of Science, Engineering and Technology 50 2009.
  4. Costantine J., Tawk Y., Barbin S.E., Christodoulou C.G. “Reconfigurable Antennas: Design and Applications”, IEEE, pp. 424 – 437, March 2015.
  5. Vida Vakilian, Jean-Francois Frigon and Sandip Roy “Space-frequency block code for MIMO-OFDM communication systems with reconfigurable antennas”, IEEE Wireless Communications, pp. 4221-4225, 2013.
  6. A. Grau, H. Jafarkhani, and F. De Flaviis, “A reconfigurable multipleinput multiple-output communication system,” IEEE Trans. on Wireless Commun., vol. 7, pp. 1719–1733, May 2008.
  7. F. Fazel, A. Grau, H. Jafarkhani, and F. Flaviis, “Space-time-state block coded MIMO communication systems using reconfigurable antennas,” IEEE Trans. on Wireless Commun., vol. 8, pp. 6019–6029, Dec. 2009.
  8. D. Agrawal, V. Tarokh, A. Naguib, and N. Seshadri, “Space-time coded OFDM for high data-rate wireless communication over wideband channels,” in Proc. IEEE Veh. Technol. Conf. (VTC), vol. 3, 1998, pp. 2232–2236.
  9. K. F. Lee and D. B. Williams, “A space-time coded transmitter diversity technique for frequency selective fading channels,” in in Proc. IEEE Sensor Array and Multichannel Signal Processing Workshop, March 2000, pp. 149–152.
  10. K. F. Lee and D. B. Williams, “A space-frequency transmitter diversity technique for OFDM systems,” in Proc. IEEE Global Commun. Conf. (GLOBECOM), vol. 3, 2000, pp. 1473–1477.
  11. A. F. Molisch, M. Z. Win, and J. H. Winters, “Space-time-frequency (STF) coding for MIMO-OFDM systems,” IEEE Commun. Lett., vol. 6, pp. 370–372, Sept. 2002.
  12. W. Su, Z. Safar, M. Olfat, and K. R. Liu, “Obtaining full-diversity spacefrequency codes from space-time codes via mapping,” IEEE Trans. Signal Process., vol. 51, no. 11, pp. 2905–2916, Nov. 2003.
  13. W. Su, Z. Safar, and K. R. Liu, “Full-rate full-diversity space-frequency codes with optimum coding advantage,” IEEE Trans. Inf. Theory, vol. 51, pp. 229–249, Jan. 2005.
  14. F. Fazel and H. Jafarkhani, “Quasi-orthogonal space-frequency and space-time-frequency block codes for MIMO OFDM channels,” IEEE Trans. on Wireless Commun., vol. 7, pp. 184–192, Jan. 2008.
  15. O. Tirkkonen, “Optimizing space-time block codes by constellation rotations,” in Finnish Wireless Commun. Workshop (FWWC), Oct. 2001, pp. 59–60.
  16. W. Su and X.-G. Xia, “Signal constellations for quasi-orthogonal spacetime block codes with full diversity,” IEEE Trans. Inf. Theory, vol. 50, pp. 2331–2347, Oct. 2004.
Index Terms

Computer Science
Information Sciences

Keywords

MIMO OFDM SF-BC QOC.