Title :
On symbol timing for OFDM based mobile communications systems
Author :
Lu, Feng ; Ohseki, Takm ; Ishikawa, Hiroyasu ; Shinonaga, Hideyuki
Author_Institution :
KDD Kamifukuoka R&D Labs., Saitama, Japan
Abstract :
This paper deals with symbol timing synchronization issue for broadband OFDM based mobile communication system. A symbol timing approach using adaptive threshold is proposed. Several OFDM training symbol formats and the corresponding timing metrics are evaluated. Simulations am carried out using Rayleigh fading model at 5 GHz band, with the velocity being 100 km/h and 150 km/h. The performances of the simulation results demonstrate that the proposed symbol timing method is feasible for mobile telecommunications.
Keywords :
OFDM modulation; land mobile radio; multipath channels; signal detection; synchronisation; timing; 5 GHz; OFDM based mobile communications systems; OFDM training symbol formats; Rayleigh fading model; adaptive threshold; broadband communication system; multipath fading; performance; simulation results; symbol timing detection; symbol timing synchronization; timing metrics; velocity; Autocorrelation; Digital video broadcasting; Doppler shift; Frequency estimation; Frequency synchronization; Mobile communication; OFDM; Telecommunication standards; Timing; Wireless LAN;
Conference_Titel :
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
Print_ISBN :
0-7803-7632-3
DOI :
10.1109/GLOCOM.2002.1188083
