Abstract

This paper proposes a MIMO-WPT-based multicarrier system with feedback from the receiver to the transmitter carrying the channel state information (CSI), whereby a steering matrix can be defined to enhance robust performance against multipath fading effects at the receiver. This relies on the time-scale localization of wavelet bases, and is demonstrated in terms of bit error rate performance. In contrast to sinusoidal carriers WP have very narrow side lobes, with most energy contained in the main lobe; this makes the proposed system less susceptible to inter-carrier interference. The main contribution of this work is the evaluation of system parameters using different wavelet families, order of filters and number of elements to balance overall performance and cost of the system, and to provide a reliable system with a high data-rate.

References

• R. G. Gallager, Information theory and reliable communication, New York: Wiley, 1968.
• T. Berger, Rate Distortion Theory: A mathematical basis for data compression, Englewood Cliffs, NJ: Prentice-Hall, 1971.
• H. S. Malvar, Signal processing with lapped transforms, Norwood, MA: Artech, 1992.
• M. Vetterli and J. Kovacevic, Wavelets and sub-band coding, Englewood Cliffs, NJ: Prentice-Hall, 1995.
• S. B. Weinstein and P. M. Ebert, Data transmission by frequency division multiplexing using the discrete Fourier transform, IEEE transaction on communication technology, Vol. 19, pp. 628 – 634, Oct 1971.
• H. Bolcskei, P. Duhamel, and R. Hleiss, “A subspace-based approach to blind channel identification in pulse shaping OFDM/OQAM systems,”IEEE Transaction on Signal Processing, Vol. 49, pp. 1594–1598, Jul. 2001.
• Y. Sun and L. Tong, “Channel equalization using one-tap DFE for wireless OFDM systems with ICI and ISI,” in Proc. IEEE SPAWC’99, Annapolis, MD, pp. 146–149 May 1999.
• G. W. Wornell, Emerging applications of multi-rate signal processing and wavelets in digital communications, Proceedings of the IEEE, Vol. 84, No. 4, pp. 586 – 603, April 1996.
• G. W. Wornell and A. V. Oppenheim, “Wavelet-based representations for a class of self-similar signals with applications to fractal modulation”, IEEE transaction on information theory, Vol. 38, pp. 785 – 800, 1992.
• G. W. Wornell, Signal Processing with fractals: A wavelet-based approach, Upper Saddle River, NJ: Prentice-Hall, 1995.
• F. Daneshgaran and M. Mondin: ‘Bandwidth efficient Modulation with wavelets’, Electronic Letters, Vol. 30, No.1, pp. 1200–1202, July 1994
• R. Asif, R.A. Abd-Alhameed, “Performance Evaluation Of FFT-OFDM and DWT-OFDM for multicarrier communications systems using time domain zero forcing equalization”, International journal of Computer Applications, Foundation of Computer Science, NY, USA, Vol. 51, No. 4, pp- 34-38, August 2012.
• K. Hetling, G. Saulnier, and P. Das, “Spreading codes for wireless spread spectrum communications,” Proceedings of IEEE, Vol. 1, pp. 68–72, 1996.
• A. Muayyadi and M. A. Abu-Rgheff , “Wavelet-based multicarrier CDMA system and its corresponding multi-user detection”, IEE Communication Proceedings, Vol 150, No. 6, Dec 2003.
• R. E. Learned, A. S.Willsky, and D. M. Boroson, “Low complexity optimal joint detection for oversaturated multiple access communications,” IEEE Transactions on Signal Processing, Vol. 45, pp. 113–123, Jan. 1997.
• A. R. Lindsey, “Wavelet packet modulation for orthogonally multiplexed communications,” IEEE Transaction on Signal Processing, Vol. 45, pp. 1336–1339, May 1997.
• K. M. Wong, J. Wu, T. N. Davidson, and Q. Jin, “Wavelet packet division multiplexing and wavelet packet design under timing error effects,” IEEE Transactions on Signal Processing, Vol. 45, pp. 2877–2890, Dec. 1997.
• R. Asif, R. A. Abd-alhameed, “Performance Evaluation of DWT-OFDM and FFT-OFDM for Multicarrier Communications Systems using Time Domain Zero Forcing Equalization”, International Journal of Computer Applications, vol. 51, no.4, August 2012, pp. 34-38. ISSN: 0975 – 8887..
• M. Vetterli and C. Herley, “Wavelets And Filter Banks: Theory And Design,” IEEE Transactions on Signal Processing, Vol. 40, No. 9, pp. 2207 – 2231, Sept.1992.
• I. Daubechies, Ten Lectures on Wavelets, 2nd Edition. Philadelphia, PA, USA. CBMS-NSF-Regional Conference Series on Applied Mathematics, 1992.
• K. Abdullah, A. Z. Sadik, and Zahir M. Hussain, “On the DWT and WPT- OFDM versus FFT-OFDM”, 5th IEEE GCC Conference and Exhibition, Kuwait City, 17-19, pp 1 – 5, March 2009,
• W. C. Jakes, Ed., Microwave Mobile Communications. New York: Wiley, 1974.
• R. Asif, “A Unique Wavelet-based Multicarrier System with and without MIMO over Multipath Channels with AWGN.” International Journal of Computer Applications, Vol 17, No. 9, 2015.
• M. Srivastava, Y. Yashu, S. Singh, P. Panigrahi, “Multi-segmentation through wavelets: Comparing the efficacy of Daubechies vs. Coiflets”, International Conference on Signal Processing and Real Time Operating System (SPRTOS), March 2011.