Full Text:   <1503>

CLC number: TN929.5

On-line Access: 

Received: 2006-05-11

Revision Accepted: 2006-08-08

Crosschecked: 0000-00-00

Cited: 0

Clicked: 3068

Citations:  Bibtex RefMan EndNote GB/T7714

-   Go to

Article info.
1. Reference List
Open peer comments

Journal of Zhejiang University SCIENCE A 2007 Vol.8 No.1 P.10~17


A novel cell search scheme for OFDM cellular systems

Author(s):  DING Ming, LUO Han-wen, WU Yun

Affiliation(s):  Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Corresponding email(s):   bobbyfalcon@yahoo.com.cn

Key Words:  Orthogonal frequency division multiplexing (OFDM), Cell search, Cell ID, Multi-cell, Mask

DING Ming, LUO Han-wen, WU Yun. A novel cell search scheme for OFDM cellular systems[J]. Journal of Zhejiang University Science A, 2007, 8(1): 10~17.

@article{title="A novel cell search scheme for OFDM cellular systems",
author="DING Ming, LUO Han-wen, WU Yun",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T A novel cell search scheme for OFDM cellular systems
%A DING Ming
%A LUO Han-wen
%A WU Yun
%J Journal of Zhejiang University SCIENCE A
%V 8
%N 1
%P 10~17
%@ 1673-565X
%D 2007
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.A0010

T1 - A novel cell search scheme for OFDM cellular systems
A1 - DING Ming
A1 - LUO Han-wen
A1 - WU Yun
J0 - Journal of Zhejiang University Science A
VL - 8
IS - 1
SP - 10
EP - 17
%@ 1673-565X
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.A0010

A novel cell search scheme for OFDM cellular systems is proposed. It is based on one OFDM symbol with several identical slots as preamble, the time domain repetition structure of which can be utilized to accomplish OFDM timing/frequency synchronization. The cell ID is comprised of two parts: a sub-carrier mask index g and a sequence index x. Each sub-carrier mask activates or deactivates some of the sub-carriers, after which a differentially coded sequence is loaded on pairs of the adjacent active sub-carriers. The user equipment (UE) recognizes the mask with index g via power detection of the received frequency domain signal. Then it estimates the index x from differential demodulation followed by detection of the frequency domain sequence. In order to improve the performance, a method of jointly estimating g and x is devised. Simulation results showed that the proposed scheme is able to support a very large number of cell IDs while maintaining a good performance even in bad multi-cell environment.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


[1] 3GPP TSG-RAN-1, 2005. R1-051329 Cell Search and Initial Acquisition for OFDM Downlink. Http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_43/Docs/R1-051329.zip

[2] 3GPP TSG-RAN-1, 2006a. TR 25.814 Physical Layer Aspects for Evolved UTRA (Release 7). Http://www.3gpp.org/ftp/Specs/achive/25_series/25.814/25814-122.zip

[3] 3GPP TSG-RAN-1, 2006b. R1-060379 Cell Search and Initial Acquisition for EUTRA. Http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_44/Docs/R1-060379.zip

[4] Kim, J., Kim, H., Han, Y., 2005. New Preamble Structures for Synchronization and Cell Searching in OFDM Systems. IEEE VTC’05 Fall. Dallas, TX, p.1623-1627.

[5] Kwon, D.S., Lim, H., Park, H., 2004. Preamble structure for single frequency cellular systems using orthogonal frequency division multiplexing. IEEE Transactions on Consumer Electronics, 50(1):115-118.

[6] Lee, J., Lee, Y., 2005. Rapid Cell Search in OFDM-based Cellular Systems. IEEE VTC’05 Spring. Stockholm, Sweden, p.1273-1277.

[7] Selesnick, I.W., Burrus, C.S., 1996. Automatic generation of prime length FFT programs. IEEE Transactions on Signal Processing, 44(1):14-24.

Open peer comments: Debate/Discuss/Question/Opinion


Please provide your name, email address and a comment

Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - Journal of Zhejiang University-SCIENCE