3rd International ICST Conference on COMmunication System SoftWAre and MiddlewaRE

Research Article

Symbol Timing Synchronization for Ultra-Wideband (UWB) Multi-band OFDM (MB-OFDM) Systems

Cite
BibTeX Plain Text
  • @INPROCEEDINGS{10.1109/COMSWA.2008.4554407,
    author={Debarati Sen and Saswat Chakrabarti Member and R. V. Raja Kumar},
    title={Symbol Timing Synchronization for Ultra-Wideband (UWB) Multi-band OFDM (MB-OFDM) Systems},
    proceedings={3rd International ICST Conference on COMmunication System SoftWAre and MiddlewaRE},
    publisher={IEEE},
    proceedings_a={COMSWARE},
    year={2008},
    month={6},
    keywords={MB-OFDM; OFDM; timing synchronization; UWB},
    doi={10.1109/COMSWA.2008.4554407}
}
  • Debarati Sen
    Saswat Chakrabarti Member
    R. V. Raja Kumar
    Year: 2008
    Symbol Timing Synchronization for Ultra-Wideband (UWB) Multi-band OFDM (MB-OFDM) Systems
    COMSWARE
    IEEE
    DOI: 10.1109/COMSWA.2008.4554407
Debarati Sen1,*, Saswat Chakrabarti Member2,*, R. V. Raja Kumar3,*
  • 1: Student Member, IEEE G. S. Sanyal School of Telecommunications Indian Institute of Technology, Kharagpur Kharagpur, India
  • 2: Member, IEEE G. S. Sanyal School of Telecommunications Indian Institute of Technology, Kharagpur India
  • 3: IEEE Electronics and Electrical Communications Engg. Indian Institute of Technology, Kharagpur Kharagpur, India
*Contact email: debarati@gssst.iitkgp.ernet.in, saswat@ece.iitkgp.ernet.in_, rkumar@ece.iitkgp.ernet.in

Abstract

A low-complexity correlation based symbol timing synchronization (CBTS) algorithm for UWB MB-OFDM systems is presented. The correlation based scheme attempts to locate the start of the FFT window during frame synchronization sequence (FS) of the received preamble by firstly correlating the received samples with known training samples and then identifying the first significant multi-path component by comparing the correlated samples of two consecutive OFDM symbols against a predefined threshold. Performance of the proposed algorithm is measured through mean-squared error (MSE) of timing estimation and probability of synchronization. Each of the 100 channel realizations for UWB channel model1 (CM1) (0-4 m LOS) and CM2 (0-4 m NLOS) are simulated for 1000 noisy channel realizations for 17 dB SNR. Synchronization probability and MSE for CM1 and CM2 are reported for 320 Mbps data rate.

Keywords
MB-OFDM; OFDM; timing synchronization; UWB
Published
2008-06-27
Publisher
IEEE
Modified
2010-05-16
http://dx.doi.org/10.1109/COMSWA.2008.4554407
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