Title :
Frame Synchronization for OFDM-Based High-Speed Wireless Communication Systems in an Impulsive Channel
Author :
Lim, Young Sun ; Kim, Sung-won ; Kim, Jin Young
Author_Institution :
Dept. of Radio Sci. & Eng., Kwangwoon Univ., Seoul
Abstract :
Frame synchronization is an critical factor for an effective operation of OFDM (orthogonal frequency division multiplexing) based communication systems. In this paper, we present and analyze an efficient frame synchronization method based on m-sequence for OFDM-based mobile multimedia communication systems. Repeated m-sequence is superimposed directly to OFDM frames in the time domain. By utilizing the autocorrelation characteristics of m-sequence, efficient frame synchronization can be achieved. And we also consider frequency offset estimation jointly. Both theoretical and simulated results are presented. The proposed technique can be applied to the OFDM-based mobile multimedia communication systems.
Keywords :
OFDM modulation; frequency estimation; m-sequences; mobile radio; multimedia communication; synchronisation; wireless channels; OFDM; autocorrelation characteristics; frame synchronization; frequency offset estimation; high-speed wireless communication systems; impulsive channel; m-sequence; mobile multimedia communication systems; orthogonal frequency division multiplexing; Communication systems; Frequency estimation; Frequency synchronization; Intersymbol interference; Land mobile radio; Multimedia communication; Multimedia systems; OFDM; Radio transmitters; Wireless communication;
Conference_Titel :
Advanced Communication Technology, The 9th International Conference on
Conference_Location :
Gangwon-Do
Print_ISBN :
978-89-5519-131-8
DOI :
10.1109/ICACT.2007.358600
