Title :
Low-overhead, low-complexity [burst] synchronization for OFDM
Author :
Schmidl, Timothy M. ; Cox, Donald C.
Author_Institution :
Stanford Univ., CA, USA
Abstract :
A rapid synchronization method is presented for an OFDM system using either a continuous transmission or a burst operation over a time-varying, fading channel. It will acquire the signal and provide channel estimation upon the receipt of just one training sequence of two symbols in the presence of unknown symbol and frame timing, large carrier and sampling frequency offsets, and very low SNRs, while maintaining low latency and low complexity. It can then track the signal with the same algorithms. Digital TV and wireless LAN are used as examples
Keywords :
communication complexity; digital television; fading; frequency division multiplexing; frequency estimation; synchronisation; television broadcasting; time-varying channels; tracking; wireless LAN; OFDM; SNR; burst operation; carrier offsets; channel estimation; complexity; continuous transmission; digital TV; frame timing; latency; low-overhead low-complexity burst synchronization; sampling frequency offsets; symbol timing; time-varying fading channel; track; training sequence; wireless LAN; Channel estimation; Delay; Digital TV; Fading; Frequency estimation; Frequency synchronization; OFDM; Sampling methods; Time varying systems; Timing;
Conference_Titel :
Communications, 1996. ICC '96, Conference Record, Converging Technologies for Tomorrow's Applications. 1996 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-3250-4
DOI :
10.1109/ICC.1996.533620
