Parallel signal acquisition time with timing with dirty templates in ultra-wideband systems using delay-hopping-transmitted reference receiver
Taijung Huang
Longyan University, Institute of Mathematics and Information Engineering
DOI: https://doi.org/10.59429/esta.v12i1.9684
Keywords: Index Terms—frame-differential (FD); Shared looped delay-line (SLD); Acquisition timing with dirty templates (TDT)
Abstract
Synchronization poses a major challenge to UWB systems due to the low acquisition time in UWB. This study develops an Shared Loopded Delay -Line for FD-IR-UWB receivers to improve the synchronization performance. The proposed parallel search architecture reduces the search time of the symbol boundaries. Moreover, one branch needs a time delay element, since SDL was proposed to lower the implementation complexity of the parallel search architecture. Finally, simulations and theoretical analysis show that the proposed architecture obtains a lower MSE and a higher PD than other alternatives.
References
[1] FCC First Report and Order: In the matter of revision of part 15 of the commission’s rules regarding ultra-wideband transmission systems, FCC 02-48, Apr. 2002.
[2] M. Z. Win and R. A. Scholtz, ”Ultra-wide Bandwidth Time-hopping Spread-spectrum Impulse forWireless Multiple-access Communications,” IEEE Transactions on Communications, vol. 48, pp. 679-689, Apr. 2000.
[3] M. Z. Win, R. A. Scholtz, and M. A. Barnes, ”Ultra-wide Bandwidth Signal Propagation for Indoor Wireless Communications,” Proceedings of the IEEE Internal Conf. on Communications, vol. 1, June 1997, pp. 56-60.
[4] L. Yang and G. B. Giannakis, ”Low-Complexity Training for Rapid Timing Acquisition in UltraWideband Communications,” in Proceedings of IEEE Global Telecommunications Conference, San Francisco, CA, December 1-5, 2003, vol. 2, pp. 769-773.
[5] Tony Q. S. Quek and Moe Z. Win, ”Analysis of UWB TransmittedReference Communication Systems in Dense Multipath Channels,” IEEE J. Select. Areas Commun., vol. 23, no 9, pp. 1863-1874, Sept. 2005.
[6] K. Witrisal, G. Leus, M. Pausini and C. Krall, ”Equivalent System Model and Equalization of Differential Impulse Radio UWB Systems,” IEEE J. Sel. Areas Commun., vol. 23, no. 9, pp. 1851-1862, Sept. 2005.
[7] L. Yang and G. B. Giannakis, ”Timing Ultra-wideband Signals with Dirty Templates,” IEEE Trans. Commun., vol, 53, no. 11, pp. 1952 - 1963, Nov. 2005.
[8] L. W. Hughes, ”A Simple Upper Bound on the Error Probability for Orthogonal Signals in White Noise,” IEEE Trans. Commun., vol. 40, no. 4, p. 670, Apr. 1992.
[9] D. B. Maria-Gabriella and G. Guerino, Understanding Ultra Wide Band Radio Fundamentals, 1st ed., Prentice Hall. Jun. 17, 2004, pp. 277 294.