Wireless Communications: OFDM (Second Part)
Keywords:
Wireless Communications, OFDM, Radiocommunications, WLANsAbstract
In this second part, the article refers to different methods — coherent and differential detection — used in phase estimation and reference amplitudes in the constellation of every subcarrier. In this sense, some aspects related to bidimensional channel estimator, power peak problems, amplifiers linearity and reduction as an important characteristic are described. Errors control coding, peak cancellation, pair reduction and symbol coding technique are mentioned as well.