High Order Template Scheme for Rapid Acquisition in the UWB Communication System

The low power of ultra-wideband (UWB) signal makes the acquisition of UWB signal be a more challenging task. In this paper, we propose the method of high order template signal technique that reduces the synchronization time. Experimental results are presented to show the improvements of performance in the mean acquisition time (MAT) and the probability of detection. The performance compared with the serial search, the truly random search and the random permutation search. It is shown that over typical UWB multipath channels, a random permutation search scheme may yield lower MAT than serial search.

[1]  Kannan Ramchandran,et al.  Channel estimation and synchronization with sub-Nyquist sampling and application to ultra-wideband systems , 2004, 2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512).

[2]  Andreas Polydoros,et al.  A Unified Approach to Serial Search Spread-Spectrum Code Acquisition - Part I: General Theory , 1984, IEEE Transactions on Communications.

[3]  Jari Iinatti.  Mean acquisition time of DS code synchronization in fixed multipath channel , 1998, 1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333).

[4]  Jawad A. Salehi,et al.  Multiple-shift acquisition algorithm in ultra-wide bandwidth frame time-hopping wireless CDMA systems , 2002, The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications.

[5]  R. Kohno,et al.  Initial timing acquisition for asynchronous DS-UWB transmissions by burst synchronization signal , 2005, 2005 IEEE International Conference on Ultra-Wideband.

[6]  R.A. Scholtz,et al.  Rapid acquisition of ultra-wideband signals in the dense multipath channel , 2002, 2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580).

[7]  Anantha Chandrakasan,et al.  Coarse acquisition for ultra wideband digital receivers , 2003, 2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)..

[8]  Tan F. Wong,et al.  Equal gain combining for acquisition of UWB signals , 2003, IEEE Military Communications Conference, 2003. MILCOM 2003..

[9]  Martin Vetterli,et al.  Low-sampling rate UWB channel characterization and synchronization , 2003, Journal of Communications and Networks.

[10]  Sumit Roy,et al.  Acquisition of direct-sequence ultra-wideband signals , 2005, IEEE Wireless Communications and Networking Conference, 2005.

[11]  Heinrich Meyr,et al.  Synchronization in digital communications , 1990 .

[12]  Andreas F. Molisch,et al.  A rapid acquisition technique for impulse radio , 2003, 2003 IEEE Pacific Rim Conference on Communications Computers and Signal Processing (PACRIM 2003) (Cat. No.03CH37490).

[13]  Tan F. Wong,et al.  Rapid ultra-wideband signal acquisition , 2004, 2004 IEEE Wireless Communications and Networking Conference (IEEE Cat. No.04TH8733).

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