Carrier frequency Offset in OFDM Systems

The wireless communication is the method in which information is transmitted from source to goal through the remote channels. The OFDM is the innovation, which is at present being utilized in the field of wireless communication, which transmit signals orthogonally, that increases speed of information transmission. Despite the fact that OFDM faces different issues, for example, signal estimation, high PAPR, frequency offset and so forth. The carrier frequency offset usually emerges because of mismatch in the carrier frequencies at the sender and destination unit. This unfavourably influences the effectiveness of the general communication system. Subsequently it is advantageous to estimate the frequency offset before the transmission procedure. In this paper, the emphasis is made on estimating frequency offset, different strategies has been inspected and talked about which defeats this issue