Dahae Chong
ABSTRACT
The conventional ultra-wideband (UWB) synchronization schemes could cause poor performance in receiver operations such as demodulation after the synchronization, since unreliable timing information corresponding to low-power multipath components might be transferred to the next stage. To solve this problem, in this paper, we propose novel synchronization schemes for UWB systems. We first derive an optimal scheme based on the maximum likelihood (ML) criterion and then develop a simpler suboptimal scheme. Simulation results show that both proposed schemes provide a better synchronization performance than the conventional scheme.
- Win, M. Z. and Scholtz, R. A. 1998. Impulse radio: how it works. IEEE Commun. Lett. 2, 2 (Feb. 1998), 36--38.Google Scholar
Cross Ref
- Porcino, D. and Hirt, W. 2003. Ultra-wideband radio technology: potential and challenges ahead. IEEE Commun. Mag. 41, 7 (July 2003), 66--74. Google ScholarDigital Library
- Yang, L. and Giannakis, G. B. 2004. Ultra-wideband communications: an idea whose time has come. IEEE Sig. Process. Mag. 21, 6 (Nov. 2004), 26--54.Google Scholar
- Aedudodla, S. R., Vijayakumaran, S., and Wong, T. F. 2005. Timing acquisition in ultra-wideband communication systems. IEEE Trans. Veh. Technol. 54, 5 (Sep. 2005) 1570--1583.Google ScholarCross Ref
- Wu, L., Wu, X., and Tian, Z. 2006. Asymptotically optimal receivers with noisy templates: design and comparison with RAKE. IEEE J. Sel. Areas Commun. 24, 4 (Apr. 2006) 808--814. Google ScholarDigital Library
- Homier, E. A. and Scholtz, R. A. 2002. Rapid acquisition of ultra-wideband signals in the dense multipath channels. In Proceedings of the IEEE Conference on UWB Systems and Technology (Baltimore, MD, May 21--23, 2002). UWBST '02. IEEE, Piscataway, NJ, 105--109.Google Scholar
- Vijayakumaran, S. and Wong, T. F. 2005. A search strategy for ultra-wideband signal acquisition. IEEE Trans. Commun. 53, 12 (Dec. 2005) 2015--2019.Google ScholarCross Ref
- Ramachandran, I. and Roy, S. 2006. On acquisition of wideband direct-sequence spread spectrum signals. IEEE Trans. Wireless Commun. 5, 6 (June 2006) 1537--1546. Google ScholarDigital Library
- Arias-de-Reyna, E. and Acha-Catalina, J. J. 2009. Blind and efficient serial search strategy for ultrawideband signal initial acquisition. IEEE Trans. Veh. Technol. 58, 6 (July 2009) 3053--3057.Google Scholar
- Molisch, A. F., Foerster, J. R., and Pendergrass, M. 2003. Channel models for ultrawideband personal area networks. IEEE Wireless Commun. 10, 6 (Dec. 2003) 14--21. Google ScholarDigital Library
- Molisch, A. F. 2005. Ultrawideband propagation channels-theory, measurement, and modeling. IEEE Trans. Veh. Technol. 54, 5 (Sep. 2005) 1528--1545.Google ScholarCross Ref
Index Terms
- Novel UWB synchronization schemes based on the maximum likelihood criterion
Recommendations
Optimal and suboptimal synchronization schemes for ultra-wideband systems
ICCSA'10: Proceedings of the 2010 international conference on Computational Science and Its Applications - Volume Part IIIThe conventional ultra-wideband (UWB) synchronization schemes could cause poor performance in receiver operations such as demodulation after the synchronization, since unreliable timing information corresponding to low-power multipath components might ...
New synchronization schemes for UWB systems
ICUIMC '09: Proceedings of the 3rd International Conference on Ubiquitous Information Management and CommunicationThis paper addresses the decision rules for synchronization in ultra-wideband (UWB) systems. The conventional decision rule cannot guarantee a good performance in receiver operations such as detection and decoding after the synchronization. To solve ...
A Technique for Frequency Synchronization in Multi-Band OFDM in Realistic UWB Channel
This paper presents a highly accurate frequency offset estimation algorithm for multi-band orthogonal frequency division multiplexing (MB-OFDM) systems effective for realistic ultra-wideband (UWB) environment. The proposed algorithm derives its ...
Comments