DOI QR코드

DOI QR Code

Double Binary Turbo Coded Data Transmission of STBC UWB Systems for U-Healthcare Applications

  • Received : 2012.01.26
  • Published : 2012.05.31

Abstract

In this paper, we analyze and simulate performance of space time block coded (STBC) binary pulse amplitude modulation-direct sequence (BPAM-DS) ultra-wideband (UWB) systems with double binary turbo code in indoor environments for various ubiquitous healthcare (u-healthcare) applications. Indoor wireless channel is modeled as a modified Saleh and Valenzuela (SV) model proposed as a UWB indoor channel model by the IEEE 802.15.SG3a in July 2003. In the STBC encoding process, an Alamouti algorithm for real-valued signals is employed because UWB signals have the type of real signal constellation. It is assumed that the transmitter has knowledge about channel state information. From simulation results, it is shown that the STBC scheme does not have an influence on improving bit error probability performance of the BPAM-DS UWB systems. It is also confirmed that the results of this paper can be applicable for u-healthcare applications.

Keywords

References

  1. M. Z. Win and R. A. Sholtz, "Impulse radio: how it works," IEEE Commun. Lett., vol. 2, no. 2, pp. 36-38, Feb. 1998. https://doi.org/10.1109/4234.660796
  2. M. Z. Win and R. A. Sholtz, "Ultra-wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple-access communications," IEEE Trans. Commun., vol. 48, no. 4, pp. 679-689, Apr. 2000. https://doi.org/10.1109/26.843135
  3. F. R. Mireles, "Performance of ultrawideband SSMA using time hopping and M-ary PPM," IEEE J. Select. Areas Commun., vol. 19, no. 6, pp. 1186-1196, Jun. 2001. https://doi.org/10.1109/49.926374
  4. K. Siwiak and D. McKeown, Ultra-Wideband Radio Technology, John Wiley and Sons Ltd., 2004.
  5. M. Z. Win and R. A. Sholtz, "On the robustness of ultra-wide bandwidth signals in dense multipath environments," IEEE Commun. Lett., vol. 2, no. 2, pp. 51-53, Feb. 1998. https://doi.org/10.1109/4234.660801
  6. F. R. Mireles, "On performance of ultra wideband signals in Gaussian noise and dense multipath," IEEE Trans. Veh. Technol., no. 50, pp. 244-249, Jan. 2001. https://doi.org/10.1109/25.917932
  7. M. Z. Win, R. A. Sholtz, and M. A. Barnes, "Ultra-wide Bandwidth signal propagation for indoor wireless communications," in Proc. of IEEE Int. Conf. Commun., Montreal, Canada, vol. 1, pp. 56-60, June 1997.
  8. I. Oppermann, M. Hamalainen, and J. Iinatti, UWB Theory and Application, John Wiley and Sons Ltd., 2004.
  9. S. Lin and D. J. Costello, Error Control Coding, Prentice Hall, 2004.
  10. S. B. Wicker, Error Control Systems for Digital Communication and Storage, Prentice Hall, 1995.
  11. S. M. Alamouti, "A simple transmit diversity technique for wireless communications," IEEE J. Select. Areas Commun., vol. 16, no. 8, pp. 1451-1458, Oct. 1998. https://doi.org/10.1109/49.730453
  12. V. Tarokh, H. Jafarkhani, and A. R. Calderbank, "Space-time blok coding for wireless: performance results," IEEE J. Select. Areas Commun., vol. 17, no. 3, pp. 451-460, Mar. 1999. https://doi.org/10.1109/49.753730
  13. M. Jankiraman, Space-Time Codes and MIMO Systems, Artech House, 2004.
  14. IEEE 802.15.SG3a, "Channel modeling Sub-committee Report Final," IEEE P802.15-02/490r1-SG3a, Feb. 2003.
  15. S. K. Dwivedi, "Power Quality Improvements and Sensor Reductions in Permanent Magnet Synchronous Drives," PhD. Thesis, IIT Delhi, 2006.