A New Synchronization Algorithm for OFDM in IEEE Standard 802.11a
Hewei Yu · Telecommunication Engineering · 2004
According to the packet structure of IEEE Standard 802.11a and the characters of short training symbols, shifting windows of received short training symbols are correlated. Mathematical methods for OFDM symbol timing can be confirmed from the correlating peak, and coarse carrier frequency offset estimating can be done using short training symbols. The result of emluator shows that this algorithm can overcome the influence of noise and carrier frequency offset, get an exact symbol timing, and eliminate the carrier frequency offset. Comparing with the algorithm in other papers, this algorithm has characters of exact symbol timing, a fell of calculating and a wide range of carrier frequency offse estimation.