Title :
A Time Reversal Transmission Approach for Multiuser UWB Communications
Author :
Nguyen, Hung Tuan ; Kovacs, Istvan Z. ; Eggers, Patrick Claus Friedrich
Author_Institution :
Dept. of Commun. Technol., Aalborg Univ.
Abstract :
We propose and evaluate the performance of the time reversal technique in impulse radio ultrawideband (UWB) communications. The evaluation was based on measured channel impulse responses of a 4times1 multiple input single output (MISO) system in the UWB frequency bandwidth of 3 to 5 GHz with both vertical and horizontal polarization at the receiver. The results show that there is a great potential in combining time reversal and UWB technique with respect to both reducing the receiver complexity and improving the system performance. Simultaneous communication is illustrated with 5 users, each with a bit error rate (BER) of less than 10-3 at an average signal to noise ratio (SNR) of 15 dB
Keywords :
electromagnetic wave polarisation; error statistics; multiuser channels; transient response; ultra wideband communication; wireless channels; 3 to 5 GHz; BER; MISO system; bit error rate; channel impulse response; horizontal polarization; impulse radio; multiple input single output system; multiuser UWB communication; receiver complexity; time reversal transmission approach; ultrawideband frequency bandwidth; vertical polarization; Bandwidth; Bit error rate; Equalizers; Frequency measurement; Interference; Polarization; Receivers; Signal to noise ratio; Ultra wideband communication; Ultra wideband technology; Multiple elements antenna; multiple input single output (MISO) system; spatial focusing; time reversal (TR) techniques; ultrawideband (UWB);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.883959
