Ultra Wideband Systems

Overview

Ultra wideband (UWB) wireless communications have attracted significant attentions from both academic and commercial area. Due to its very high data rates, ultra-low power consumption, robustness to interference and fine ranging capabilities, it has been chosen as candidates for different wireless personal area network (WPAN) standards, including IEEE 802.15.3a and 802.15.4a. Our research work is focused on the low power, area-efficient implementation of different modules in digital baseband system in the wireless UWB systems, including FFT/IFFT processors, time-domain/frequency-domain equalizers, channel code decoders (Viterbi decoders and LDPC decoders). Our research will also address the algorithms related to ranging, geolocation, MIMO-UWB modulation and demodulation.

Related Papers

  • Sangmin Kim, J. Tang, and K. K. Parhi, "Quasi-cyclic low-density parity-check coded multiband-OFDM UWB systems," in IEEE International Symposium on Circuits and Systems, pp. 65-68, May 2005
  • J. Tang and K. K. Parhi, "Viterbi decoder for high-speed ultra-wideband communication systems," Proc. of 2005 IEEE International Conference on Speech, Acoustic, and Signal Processing, Vol. 5, pp. 37-40, Philadelphia, March 2005
  • J. Tang, A. H. Tewfik, and K. K. Parhi, "Reduced complexity sphere decoding and application to interfering IEEE 802.15.3a piconets," in International Conference on Communications, Vol. 5, pp. 2864-2866, June 2004
  • E. Saberinia, J. Tang, A. H. Tewfik, and K. K. Parhi, "Design and implementation of multi-band pulsed-OFDM system for wireless personal area networks," in International Conference on Communications, vol. 2, pp. 862-866, June 2004
  • J. Tang, A. H. Tewfik, and K. K. Parhi, "High performance solution for interfering uwb piconets with reduced complexity sphere decoding," in IEEE International Symposium on Signals and Systems, vol. 5, pp. 377-380, May 2004
  • E. Saberinia, J. Tang, A. H. Tewfik, and K. K. Parhi, "Pulsed OFDM modulation for ultra wideband communications," in IEEE International Symposium on Signals and Systems, 2004, vol. 5, pp. 369-372, May 2004,
  • J. Tang and K. K. Parhi, "On the power spectrum density and parameter choice of multi-carrier UWB communications," in Thirty-Seventh Asilomar Conference on Signals, Systems and Computers, vol. 2, pp. 1230-1234, Nov. 2003
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