Simulation and Evaluation of Synchronization Algorithms in OFDM Systems

In this paper, we ve looked into the OFDM synchronization and modulation. After preparation and the problems, we discuss about the modulation and synchronization of OFDM. For this function, time domain synchronization has studied in OFDM modulation. This Thesis discusses on OFDM synchronization technology predicated on training image. OFDM synchronization algorithms predicated on training sign are looked into, and two algorithms are suggested. A better algorithm is suggested targeted at resolving training image timing and redundancy metric plateau in Schmidl algorithm. Working out mark in this algorithm is conjugated repeated and symmetrical. The timing metric has a sharp peak and eliminates the plateau. Both essential and fractional occurrence offset estimation use the same training mark, and the machine over head is kept and the intricacy is degraded therefore. The consequence of simulation demonstrates this synchronization can improve SNR and tad error rate somewhat. The results express this certainty that the sound to stage proportion will be better because the little bit tails, Will transfer simultaneously.

کلیدواژه ها:

OFDM ، Fading ، Diversity ، Synchronization