Cell Search Synchronization under the Presence of Timing and Frequency Offsets in W-CDMA

Wisam K. HUSSAIN; Loay D. KHALAF; Mohammed HAWA

doi:10.1587/transcom.E96.B.1012

Cell Search Synchronization under the Presence of Timing and Frequency Offsets in W-CDMA

Wisam K. HUSSAIN, Loay D. KHALAF, Mohammed HAWA

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Initial cell search in wideband code-division multiple-access (W-CDMA) systems is a challenging process. On the one hand, channel impairments such as multipath fading, Doppler shift, and noise create frequency and time offsets in the received signal. On the other hand, the residual synchronization error of the crystal oscillator at the mobile station also causes time and frequency offsets. Such offsets can affect the ability of a mobile station to perform cell search. Previous work concentrated on cell synchronization algorithms that considered multipath channels and frequency offsets, but ignored clock and timing offsets due to device tolerances. This work discusses a robust initial cell search algorithm, and quantifies its performance in the presence of frequency and time offsets due to two co-existing problems: channel impairments and clock drift at the receiver. Another desired performance enhancement is the reduction of power consumption of the receiver, which is mainly due to the computational complexity of the algorithms. This power reduction can be achieved by reducing the computational complexity by a divide and conquer strategy during the synchronization process.

Publication: IEICE TRANSACTIONS on Communications Vol.E96-B No.4 pp.1012-1018

Publication Date: 2013/04/01

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Online ISSN: 1745-1345

DOI: 10.1587/transcom.E96.B.1012

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

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Wisam K. HUSSAIN, Loay D. KHALAF, Mohammed HAWA, "Cell Search Synchronization under the Presence of Timing and Frequency Offsets in W-CDMA" in IEICE TRANSACTIONS on Communications, vol. E96-B, no. 4, pp. 1012-1018, April 2013, doi: 10.1587/transcom.E96.B.1012.
Abstract: Initial cell search in wideband code-division multiple-access (W-CDMA) systems is a challenging process. On the one hand, channel impairments such as multipath fading, Doppler shift, and noise create frequency and time offsets in the received signal. On the other hand, the residual synchronization error of the crystal oscillator at the mobile station also causes time and frequency offsets. Such offsets can affect the ability of a mobile station to perform cell search. Previous work concentrated on cell synchronization algorithms that considered multipath channels and frequency offsets, but ignored clock and timing offsets due to device tolerances. This work discusses a robust initial cell search algorithm, and quantifies its performance in the presence of frequency and time offsets due to two co-existing problems: channel impairments and clock drift at the receiver. Another desired performance enhancement is the reduction of power consumption of the receiver, which is mainly due to the computational complexity of the algorithms. This power reduction can be achieved by reducing the computational complexity by a divide and conquer strategy during the synchronization process.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E96.B.1012/_p

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@ARTICLE{e96-b_4_1012,
author={Wisam K. HUSSAIN, Loay D. KHALAF, Mohammed HAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={Cell Search Synchronization under the Presence of Timing and Frequency Offsets in W-CDMA},
year={2013},
volume={E96-B},
number={4},
pages={1012-1018},
abstract={Initial cell search in wideband code-division multiple-access (W-CDMA) systems is a challenging process. On the one hand, channel impairments such as multipath fading, Doppler shift, and noise create frequency and time offsets in the received signal. On the other hand, the residual synchronization error of the crystal oscillator at the mobile station also causes time and frequency offsets. Such offsets can affect the ability of a mobile station to perform cell search. Previous work concentrated on cell synchronization algorithms that considered multipath channels and frequency offsets, but ignored clock and timing offsets due to device tolerances. This work discusses a robust initial cell search algorithm, and quantifies its performance in the presence of frequency and time offsets due to two co-existing problems: channel impairments and clock drift at the receiver. Another desired performance enhancement is the reduction of power consumption of the receiver, which is mainly due to the computational complexity of the algorithms. This power reduction can be achieved by reducing the computational complexity by a divide and conquer strategy during the synchronization process.},
keywords={},
doi={10.1587/transcom.E96.B.1012},
ISSN={1745-1345},
month={April},}

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TY - JOUR
TI - Cell Search Synchronization under the Presence of Timing and Frequency Offsets in W-CDMA
T2 - IEICE TRANSACTIONS on Communications
SP - 1012
EP - 1018
AU - Wisam K. HUSSAIN
AU - Loay D. KHALAF
AU - Mohammed HAWA
PY - 2013
DO - 10.1587/transcom.E96.B.1012
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E96-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2013
AB - Initial cell search in wideband code-division multiple-access (W-CDMA) systems is a challenging process. On the one hand, channel impairments such as multipath fading, Doppler shift, and noise create frequency and time offsets in the received signal. On the other hand, the residual synchronization error of the crystal oscillator at the mobile station also causes time and frequency offsets. Such offsets can affect the ability of a mobile station to perform cell search. Previous work concentrated on cell synchronization algorithms that considered multipath channels and frequency offsets, but ignored clock and timing offsets due to device tolerances. This work discusses a robust initial cell search algorithm, and quantifies its performance in the presence of frequency and time offsets due to two co-existing problems: channel impairments and clock drift at the receiver. Another desired performance enhancement is the reduction of power consumption of the receiver, which is mainly due to the computational complexity of the algorithms. This power reduction can be achieved by reducing the computational complexity by a divide and conquer strategy during the synchronization process.
ER -