Title :
A fast burst synchronization scheme for OFDM
Author :
Mizoguchi, Masato ; Onizawa, Takeshi ; Kumagai, Tomoaki ; Takanashi, Hitoshi ; Morikura, Masahiro
Author_Institution :
NTT Wireless Syst. Labs., Kanagawa, Japan
Abstract :
This paper proposes a burst synchronization scheme with a short preamble signal for high data rate wireless LAN systems that use orthogonal frequency division multiplexing (OFDM). The proposed scheme, which consists of automatic frequency control (AFC) and symbol timing detection, enables us to shorten the preamble length to 1/4 that of a conventional one. Computer simulation results show that the degradation in required Eb/N0 due to the synchronization scheme is less than 1 dB in a selective Rayleigh fading channel
Keywords :
OFDM modulation; Rayleigh channels; automatic frequency control; data communication; demodulators; signal detection; synchronisation; timing; wireless LAN; AFC; BER performance; OFDM; automatic frequency control; computer simulation results; demodulator; fast burst synchronization; high data rate wireless LAN; orthogonal frequency division multiplexing; preamble length; selective Rayleigh fading channel; short preamble signal; symbol timing detection; Automatic frequency control; Discrete Fourier transforms; Frequency estimation; Frequency synchronization; Interference; OFDM modulation; Telecommunication standards; Timing; Transmitters; Wireless LAN;
Conference_Titel :
Universal Personal Communications, 1998. ICUPC '98. IEEE 1998 International Conference on
Conference_Location :
Florence
Print_ISBN :
0-7803-5106-1
DOI :
10.1109/ICUPC.1998.732816
