Post-Time-Reversed MIMO Ultrawideband Transmission Scheme

A post-time-reversed multiple-input multiple-output ultrawideband (UWB) transmission scheme is proposed, which enhances the energy capture and improves the system robustness against channel estimation error when compared with the pre-time-reversed UWB scheme and the classical (no TR) scheme. The advantages are: an improvement in bit-error-rate; and flexibility in a fast varying or extremely complex environment. Following the theoretical model description, simulation results are reported over two types of channels, the IEEE 802.15.3a proposed channel model, and a realistic office environment channel model. The results demonstrate the promise of the proposed scheme for higher data rates in a harsh environment.

[1]  Moe Z. Win,et al.  On the robustness of ultra-wide bandwidth signals in dense multipath environments , 1998, IEEE Communications Letters.

[2]  Hung Tuan Nguyen,et al.  A Time Reversal Transmission Approach for Multiuser UWB Communications , 2006, IEEE Transactions on Antennas and Propagation.

[3]  Ghaïs El Zein,et al.  Performance Enhancement of Multiuser Time Reversal UWB Communication System , 2007, 2007 4th International Symposium on Wireless Communication Systems.

[4]  Moe Z. Win,et al.  Impulse radio: how it works , 1998, IEEE Communications Letters.

[5]  Rohit U. Nabar,et al.  Introduction to Space-Time Wireless Communications , 2003 .

[6]  A.A.M. Saleh,et al.  A Statistical Model for Indoor Multipath Propagation , 1987, IEEE J. Sel. Areas Commun..

[7]  M. Fink,et al.  Taking advantage of multiple scattering to communicate with time-reversal antennas. , 2003, Physical review letters.

[8]  Robert C. Qiu.  A generalized time domain multipath channel and its application in ultra-wide-band (UWB) wireless optimal receiver design: system performance analysis , 2004, 2004 IEEE Wireless Communications and Networking Conference (IEEE Cat. No.04TH8733).

[9]  M. Fink,et al.  Time reversal of ultrasonic fields. I. Basic principles , 1992, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[10]  Yi Jiang,et al.  Multiple Antenna Time Reversal Transmission in Ultra-Wideband Communications , 2007, IEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference.

[11]  Moe Z. Win,et al.  Evaluation of an ultra-wide-band propagation channel , 2002 .

[12]  R.C. Qiu,et al.  A generalized time domain multipath channel and its application in ultra-wideband (UWB) wireless optimal receiver design-Part II: physics-based system analysis , 2004, IEEE Transactions on Wireless Communications.

[13]  M. Fink.  Time reversed acoustics , 2001 .

[14]  M. Fink,et al.  Ultrasonic pulse compression with one-bit time reversal through multiple scattering , 1999 .

[15]  Arogyaswami Paulraj,et al.  Application of time-reversal with MMSE equalizer to UWB communications , 2004, IEEE Global Telecommunications Conference, 2004. GLOBECOM '04..

[16]  Brian M. Sadler,et al.  Performance Study on Time Reversed Impulse MIMO for UWB Communications Based on Measured Spatial UWB Channels , 2007, MILCOM 2007 - IEEE Military Communications Conference.

[17]  H.C. Song,et al.  Underwater acoustic communications using time reversal , 2001, IEEE Journal of Oceanic Engineering.

[18]  R.C. Qiu,et al.  A Theory of Time-Reversed Impulse Multiple-Input Multiple-Output (MIMO) for Ultra-Wideband (UWB) Communications , 2006, 2006 IEEE International Conference on Ultra-Wideband.

[19]  Rodney G. Vaughan,et al.  Super-resolution of pulsed multipath channels for delay spread characterization , 1999, IEEE Trans. Commun..

[20]  Guerino Giancola,et al.  Understanding Ultra Wide Band Radio Fundamentals , 2004 .

[21]  J. Foerster,et al.  Channel modeling sub-committee report final , 2002 .

[22]  Kyritsi,et al.  MISO time reversal and delay-spread compression for FWA channels at 5 GHz , 2004, IEEE Antennas and Wireless Propagation Letters.