Channel Estimation Using Extended Technique of Guard Band Reduction

OFDM channel is used to pass multiple sub carriers for the optimization of the channel performance. When multiple subcarriers passes through one channel, as the bandwidth is fixed it is necessary to keep a gap between the subcarriers so that the interference between them does not occur .This paper describes the efficiency of OFDM by the number of signals being passed. The numbers of transmitters increases and interferences increases when the guard band decreases, so Guard band is designed & it is the difference between two signals. Here, the value of guard band has been halved to make the channel performance better.