Satellite Communications White Papers
Burst Timing Synchronization for OFDM - Based LEO and MEO Wideband Mobile Satellite Systems
Overview A burst timing offset estimation method is examined in fast time varying frequency selective fading channels for broadband orthogonal frequency division multiplexing (OFDM)-based systems. The estimation is obtained in the presence of Gaussian noise and Rayleigh or Rice multipath fading. Two formats for the OFDM training symbol and the corresponding timing metrics are proposed and compared with respect to their estimation performance and improvement is succeeded. The performance is evaluated by computer simulation in terms of estimation variance. The synchronization in the OFDM system is examined by setting as parameters the number of subcarriers, the signal-to-noise ratio (SNR) and the high Doppler shift present in LEO/MEO satellite communications.
| Publisher | University of Athens | File Format | PDF, requires Acrobat Rdr 5 |
|---|---|---|---|
| Date Published | August 2001 | Downloads | 296 |
| Format | White Papers | ||
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