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Timing Synchronisation for IR-UWB Communication Systems [chapter]

Rshdee Alhakim, Kosai Raoof, Emmanuel Simeu
2012 Ultra Wideband - Current Status and Future Trends  
SNR per pulse for second-order DLL Timing Synchronisation for IR-UWB Communication Systems 35 Normalized MSE vs.  ...  Figures 15-16 show the comparison of mean square error (MSE) performance in DA & NDA modes with dirty templates for various values of .  ... 
doi:10.5772/48663 fatcat:ooeflnsqhbfwncvqhrjsczmnwy

BER sensitivity to mistiming in ultra-wideband impulse radios - part II: fading channels

Zhi Tian, G.B. Giannakis
2005 IEEE Transactions on Signal Processing  
Through analyses and simulations, we illustrate that the reception quality of a UWB impulse radio is highly sensitive to both timing acquisition and tracking errors.  ...  For a general correlation-based detector, we derived in Part I unifying expressions for the decision statistics as well as BER formulas under mistiming, given fixed channel realizations.  ...  ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for their constructive comments and suggestions.  ... 
doi:10.1109/tsp.2005.845485 fatcat:ql47mlxo3rfrnmg5gqa744otuu

A 0.4-V UWB baseband processor

Vivienne Sze, Anantha P. Chandrakasan
2007 Proceedings of the 2007 international symposium on Low power electronics and design - ISLPED '07  
Measured results for a 20-pJ/bit 100-Mbps UWB baseband processor are presented. Architectural techniques and design methodologies for reducing additional complexity due to parallelism are discussed.  ...  While ultralow voltage operation is usually limited to low energy, low performance applications, this work examines how it can be applied to low energy, high performance applications.  ...  ACKNOWLEDGEMENTS The authors would like to thank Raúl Blázquez for technical discussions and STMicroelectronics for providing process and cell library access.  ... 
doi:10.1145/1283780.1283837 dblp:conf/islped/SzeC07 fatcat:hnqctkzrjraf3e44r5f25brvgi

Timing Acquisition in Ultra-wideband Communication Systems

S.R. Aedudodla, S. Vijayakumaran, T.F. Wong
2005 IEEE Transactions on Vehicular Technology  
We discuss how the distinguishing features of UWB communication systems, such as their wide bandwidth and low transmission power constraints, are responsible for making the acquisition of UWB signals a  ...  The goal of this paper is to highlight the significance of the timing acquisition problem in ultra-wideband (UWB) communication systems and discuss efficient solutions to the problem.  ...  Generalized Likelihood Ratio Test for UWB Signal Acquisition There has not been much effort in the direction of finding the optimal detectors for the timing acquisition problem in UWB systems.  ... 
doi:10.1109/tvt.2005.855495 fatcat:5xrjen7w6vc5tci7k6lysq4sha

Noncoherent Ultra-Wideband (De)Modulation

Liuqing Yang, Georgios B. Giannakis, Ananthram Swami
2007 IEEE Transactions on Communications  
We show that the resultant robust-to-timing TR (RTTR) approach considerably improves performance of the original TR system in the presence of timing offsets or residual timing acquisition errors.  ...  Ultra-wideband (UWB) radios have received increasing attention recently for their potential to overlay legacy systems, their low-power consumption and low-complexity implementation.  ...  Although the original TR-UWB uses the sign detector in (18) in lieu of steps S2 and S3, the low-complexity option S3b for our RTTR-UWB is also essentially a sign detector. VI.  ... 
doi:10.1109/tcomm.2007.894116 fatcat:7lnngrnisrbzrg2yge7ie5fbpa

Intelligent Communication Module for Wireless Biosensor Networks [chapter]

R. Naik, J. Singh, H. P.
2010 Biosensors  
Every component of the WBSN node has to be designed for low power consumption as it directly affects the system reliability, efficiency and life.  ...  This makes the design of the communication module and its receiver section very critical for WBSN applications.  ...  Clock generation module, bank of parallel digital pulse matched filters (PMFs), bank of parallel pseudo noise correlators (PNCs), peak detector, local PN generator, data recovery and control block together  ... 
doi:10.5772/7212 fatcat:orkyphncqbckzewnzucufuadwu

Analysis of UWB Systems for Synchronization and Fine Timing

2020 International journal of recent technology and engineering  
Ultra-Wide Band (UWB) technology due to its high speed, data rate and multipath immune characteristics is one of the promising solutions for communication systems.  ...  In UWB technology challenging task is synchronization and fine timing performance for the specified application.  ...  problem of ISI and hence low performance in comparison to the traditional TR systems.  ... 
doi:10.35940/ijrte.f7661.038620 fatcat:jkuv36tiuvfnblu4o55ko42ba4

Low-Power Impulse UWB Architectures and Circuits

Anantha P. Chandrakasan, Fred S. Lee, David D. Wentzloff, Vivienne Sze, Brian P. Ginsburg, Patrick P. Mercier, Denis C. Daly, RaÚl Blazquez
2009 Proceedings of the IEEE  
Pulsed ultrawide band provides the energy needed for a high data-rate battery-operated transceiver, and a low data-rate transceiver suitable for battery-less operation.  ...  Two custom low-power impulse UWB systems are presented in this paper that address high-and low-data-rate applications. Both systems utilize energy-efficient architectures and circuits.  ...  For real-time acquisition and demodulation of a UWB packet, the baseband processor must perform signal processing with a throughput of 500 MS/s.  ... 
doi:10.1109/jproc.2008.2008787 fatcat:wztqds6eebbjhh734egodrlunm

Energy Efficient Pulsed-UWB CMOS Circuits and Systems

David D. Wentzloff, Fred S. Lee, Denis C. Daly, Manish Bhardwaj, Patrick P. Mercier, Anantha P. Chandrakasan
2007 2007 IEEE International Conference on Ultra-Wideband  
The receiver performs channelselection filtering, energy detection, and bit-slicing. The receiver circuits operate at 0.65V and 0.5V, and can turn on in 2ns for duty-cycled operation.  ...  A custom UWB transceiver chipset is presented that communicates in three 550MHz-wide channels in the 3.1 to 5GHz band by using pulse position modulation (PPM).  ...  The reduction in energy typically comes at the expense of system performance.  ... 
doi:10.1109/icuwb.2007.4380956 fatcat:cor4q2qqpnec5n34mfoqukyspu

Ultrawideband Radio Design: The Promise of High-Speed, Short-Range Wireless Connectivity

S. Roy, J.R. Foerster, V.S. Somayazulu, D.G. Leeper
2004 Proceedings of the IEEE  
This paper provides a tutorial overview of ultrawideband (UWB) radio technology for high-speed wireless connectivity.  ...  Subsequent to establishing a historical and technological context, it describes the new impetus for UWB systems development and standardization resulting from the FCC's recent decision to permit unlicensed  ...  For acquisition of a single user's preamble sequence in AWGN, a matched filter or correlator receiver is optimal.  ... 
doi:10.1109/jproc.2003.821910 fatcat:yrayuvkojzawtluhjg46g43vci

Ultra-Wideband Radio

Robert A. Scholtz, Davida M. Pozar, Won Namgoong
2005 EURASIP Journal on Advances in Signal Processing  
The impact of the US FCC's regulations and the characteristics of the low-power UWB propagation channels are explored, and their effects on UWB hardware design are illustrated.  ...  Further applications resulted in the construction of a sub-nanosecond, single coaxial cable scheme for multiplexing data between computer terminals . . . .  ...  discussions of UWB radio systems.  ... 
doi:10.1155/asp.2005.252 fatcat:42x2nibnwrecvdyjjcb3kswzfa

Performance Evaluation of an IEEE 802.15.4a Physical Layer with Energy Detection and Multi-User Interference

Manuel Flury, Ruben Merz, Jean-Yves le Boudec, Julien Zory
2007 2007 IEEE International Conference on Ultra-Wideband  
Energy detectors are known to have a low implementation complexity and to allow for avoiding the complex channel estimation needed by a Rake receiver.  ...  We evaluate the performance of an IEEE 802.15.4a ultra-wide band (UWB) physical layer, with an energy-detection receiver, in the presence of multi-user interference (MUI).  ...  Both [10] and [3] considered packet detection and timing acquisition. They exposed the excellent trade-off between complexity and performance of an energy detection receiver for IR-UWB.  ... 
doi:10.1109/icuwb.2007.4381027 fatcat:r5issp3hybbxnautkkuohljmgu

Noncoherent ultra-wideband systems

Klaus Witrisal, Geert Leus, Gerard Janssen, Marco Pausini, Florian Troesch, Thomas Zasowski, Jac Romme
2009 IEEE Signal Processing Magazine  
and positioning.  ...  His research interests are in wireless communication, especially narrowband multiuser detection, digital modulation techniques, channel modeling, diversity techniques, and ultra-wideband communications  ...  A variety of leading edge detectors can be applied to the acquired energy samples of the received UWB pulses, as described in [67] .  ... 
doi:10.1109/msp.2009.932617 fatcat:fmukf6ij3ffm5ppi4cg7kxqqfa

Low-complexity synchronization algorithms for orthogonally modulated IR-UWB systems

Rizwan Akbar, Emanuel Radoi, Stéphane Azou, Muhammad Najam-ul-Islam
2013 EURASIP Journal on Wireless Communications and Networking  
The two widely adopted modulation schemes for IR-UWB systems are binary pulse amplitude modulation and binary pulse position modulation.  ...  Timing synchronization is a major issue for any communication system since it is essential to ensure its stable operation and reliable performance.  ...  System model and preliminaries PSM transmission model For a typical IR-UWB system in a single-user scenario, equipped with TH codes and employing orthogonal PSM, the transmitted signal can be expressed  ... 
doi:10.1186/1687-1499-2013-199 fatcat:mzqp37khrzbmzlb27rgandz63i

Energy detection based blind synchronization for pulse shape modulated IR-UWB systems

R. Akbar, E. Radoi, S. Azou
2011 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications  
In this paper, an energy detection based non dataaided (NDA) algorithm for orthogonal pulse shape modulated (PSM) impulse radio ultra wideband (IR-UWB) system is proposed.  ...  Synchronization is a key performance-limiting factor in any communication system and a challenging task to accomplish.  ...  acquisition (P A ) and BER against E x /N 0 (where E x is energy within one pulse) .  ... 
doi:10.1109/pimrc.2011.6140090 dblp:conf/pimrc/AkbarRA11 fatcat:c2dkp6kc3nfvtifippikpaybj4
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