NDLI: A new frame synchronization algorithm for OFDM WiMAX system in Simulink

Content Provider	IEEE Xplore Digital Library
Author	Xiaoyan Zhao Lizhen Cui
Copyright Year	2011
Description	Author affiliation: School of Information Engineering, Inner Mongolia University Of Science&Technology, Baotou, China (Xiaoyan Zhao; Lizhen Cui)
Abstract	PHY(Physical Layer) of WiMAX(Worldwide Interoperability for Microwave Access) which is one of 4G core technique adopts OFDM(Orthogonal Frequency Division Multiplexing)/OFDMA(Orthogonal Frequency Division Multiplexing Access), and the frame synchronization is key factor of the OFDM implementation. In this paper, a WiMAX system simulation model is achieved by Simulink firstly, and then a new frame synchronization algorithm based on IEEE802.16d downlink frame structure is proposed. The proposed algorithm first makes coarse synchronization with the first OFDM symbol in long preamble to identify the probable start point of OFDM symbol, and then makes fine synchronization with the second OFDM symbol in long preamble to identify the true start of OFDM symbol. In the end, the new algorithm is embedded into the WiMAX PHY model with the embedded MATLAB function block. The results of the simulation show that the proposed algorithm can produce impulse-shaped timing metric under the low SNR (signal-to-noise ratio) or over multiple fading channel, and timing estimation is more accurate than conventional algorithms.
Starting Page	2321
Ending Page	2325
File Size	1547617
Page Count	5
File Format	PDF
ISBN	9781457715860
e-ISBN	9781457715877
DOI	10.1109/ICCSNT.2011.6182438
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-12-24
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	PHY OFDM Neodymium Multipath fading Frame synchronization WiMAX Simulink IEEE802.16d
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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