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http://dx.doi.org/10.5515/KJKIEES.2014.25.4.411

Efficient OFDM Frame Synchronization Scheme for LED-ID Systems  

Kim, Kyung-Ho (Department of Wireless Communications Engineering, Kwangwoon University)
Park, Young-Sik (Department of Wireless Communications Engineering, Kwangwoon University)
Hwang, Yu-Min (Department of Wireless Communications Engineering, Kwangwoon University)
Kim, Jin-Young (Department of Electronics Convergence Engineering, Kwangwoon University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.25, no.4, 2014 , pp. 411-417 More about this Journal
Abstract
In this paper, we propose an efficient OFDM(Orthogonal Frequency Division Multiplexing) frame synchronization scheme for LED-ID(Identification) systems. A frame synchronization is an essential procedure for normal operations of OFDM systems. Bernoulli-Gaussian noise is considered in LED-ID systems' environments. In order to enhance the OFDM frame synchronization performance, we add a ROGS(Repeated Orthogonal Gold Sequence) to OFDM signals in the time domain. The power level of a ROGS does not affect a normal operation of the LED-ID systems. Frame synchronization can be achieved successfully over LED-ID channels interfered by impulsive noise owing to good auto and cross-correlation properties of the ROGS.
Keywords
LED-ID; OFDM; Synchronization; ROGS; m-Sequence;
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Times Cited By KSCI : 1  (Citation Analysis)
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