Inter-Carrier Interference Cancellation for ＯＦＤＭＡ Systems

摘要

Inter-Carrier Interference (ICI) is a received signal removing method comprising a plurality of user signals transmitted from the transmitter is carried on. ICI removal method is to determine the transmitted different user causing the greatest carrier-to-interference (ICI) in the transmitted signal to the user that received signal, and a given user is performed by selectively removing the part from the transport ICI. This can be achieved by calculating the ICI component, based on the estimation of the transmitted signal calculated by dividing the received signal by the estimated value of the channel. Instead, the transmission causes the ICI is optionally demodulation and decoding (decode) being, and an improved estimate of the transmitted signal is used to estimate and remove the ICI. Causing the transmission to the other users are the largest ICI depends on that the relative length of the corresponding data and pilot symbols, and how much the orthogonality loss.