Abstract
Rapid and accurate synchronization constitutes a major challenge in deploying Ultra-Wideband impulse radio (UWB-IR) for indoor wireless communications. This paper develops a data-aided (DA) synchronization algorithm dispensing with searching procedures for UWB-IR communications. By adopting a stream of alternating orthogonal pulses, frame-level synchronization can be achieved without channel information. Without utilizing any searching procedure, the timing offset estimator is obtained in a closed form. Because exhaustive search can be avoided, both computational complexity and synchronization time are reduced. Simulations and comparisons are provided to illustrate the advantages of our design over the alternatives.
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References
Win M Z, Scholtz R A. Ultra wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple access communications. IEEE Trans Commun, 2000, 48: 679–691
Wang J Z, Milstein L B. CDMA overlay situations for microcellular mobile communications. IEEE Trans Commun, 1995, 43: 603–614
Tian Z, Giannakis G B. BER sensitivity to mistiming in ultra-wideband impulse radios—part II: fading channels. IEEE Trans Signal Process, 2005, 53: 1897–1907
He N, Tepedelenlioglui C. Joint pulse and symbol level acquisition of UWB receivers. IEEE Trans Commun, 2008, 7: 6–14
Liu B, Lv T J, Qiao Y W, et al. A novel synchronization algorithm in Ultra-Wideband system. In: Proceedings of IEEE International Conference on Ultra-Wideband, Vancouver, BC, Canada, 2009. 556–559
Qiao YW, Lü T J. Blind synchronization and low-complexity demodulation for DS-UWB systems. In: Proceedings of IEEE Wireless Communications and Networking Conference, Sydney, Australia, 2010. 1–5
Chen S Y, Wang L, Chen G R. Data-aided timing synchronization for FM-DCSK UWB communication systems. IEEE Trans Ind Electron, 2010, 57: 1538–1545
Ren ZY, Lü T J. Blind two-step synchronization for direct-sequence UWB systems. In: Proceedings of IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Tokyo, Japan, 2009. 1029–1033
Renzo M D, Annoni L A, Graziosi F, et al. A novel class of algorithms for timing acquisition of differential transmitted reference UWB receivers: architecture, performance analysis and system design. IEEE Trans Wireless Commun, 2008, 7: 2368–2387
Xiao Z Y, Zhang J Q, Jin D P, et al. Two-step data-aided acquisition for high rate DS-UWB systems. In: Proceedings of IEEE International Conference on Communications, Cape Town, South Africa, 2010. 1–5
Tian Z, Giannakis G B. A GLRT approach to data-aided timing acquisition in UWB radios—Part I and II. IEEE Trans Wireless Commun, 2005, 4: 2956–2967, 2994–3004
Shin D H, Cho Y H, Park D J. A new synchronization scheme exploiting mean energy profile in UWB non-coherent receiver. In: Proceedings of IEEE International Conference on Communications, Istanbul, Turkey, 2006. 5721–5725
Wang J, Mai L, Peng Y J, et al. An energy-proportion synchronization method for IR-UWB communications. In: Proceedings of IEEE International Symposium on Circuits and Systems, New Orleans, LA, USA, 2007. 2578–2581
Yang L, Giannakis G B. Blind UWB timing with a dirty template. In: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, Montreal, PQ, Canada, 2004. 509–512
Scholtz R A. Multiple access with time-hopping impulse modulation. In: Proceedings of IEEE Military Communications Conference, Boston, MA, USA, 1993. 447–450
Hu J F, Lü T J. A novel chip-level algorithm for UWB timing. In: Proceedings of IEEE Global Telecommunications Conference, New Orleans, LO, USA, 2008. 1–5
Carbonelli C, Mengali U. Synchronization algorithms for UWB signals. IEEE Trans Commun, 2006, 54: 329–338
Montoya T P, Smith G S. A study of pulse radiation from several broad-band loaded monopoles. IEEE Trans Anten Propag, 1996, 44: 1172–1182
Carbonelli C, Mitra U. Clustered ML channel estimation for ultra-wideband signals. IEEE Trans Wireless Commun, 2007, 6: 2412–2416
Lottici V, DAndrea A, Mengali U. Channel estimation for ultra-wideband communications. IEEE J Select Areas Commun, 2002, 20: 1638–1644
RCD Components Inc. Passive delay lines, dip package P1410 and P2420, 2007. http://216.153.156.169:8080/rcd/rcdpdf/P1410-P2420.pdf
IEEE P802.15 Working Group for WPANs. Channel Modeling Subcommittee Report Final. IEEE P802.15-02/368r5-SG3a. 2002
Qiu R C, Zhou C M, Liu Q C. Physics-based pulse distortion for ultra-wideband signals. IEEE Trans Veh Tech, 2005, 54: 1546–1555
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Ren, Z., Jiang, T., Zhong, Y. et al. Data-aided synchronization algorithm dispensing with searching procedures for UWB communications. Sci. China Inf. Sci. 55, 778–788 (2012). https://doi.org/10.1007/s11432-011-4415-4
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DOI: https://doi.org/10.1007/s11432-011-4415-4