Patent ID: 7844018

Claim:
A receiver, comprising: a canceller configured to reduce inter-carrier interference (ICI) in the frequency domain between a plurality of sub-carriers associated with an Orthogonal Frequency Division Multiplexing (OFDM) symbol by performing an iterative process on each of one or more of selected sub-carriers by: initializing R′ to the OFDM symbols carried by a sub-carrier; and setting R′ to a value computed as a function of R′ using the following formula: R′=Y−ηψΩR′, where Y represents an OFDM symbol in the frequency domain, η represents one of εN/2 or ε(N-E)/2 with ε corresponding to a frequency error, N corresponding to the number of the plurality of sub-carriers, and E indicating a number of subcarriers in an edge-band, ψ represents a Toeplitz matrix, and Ω represents a scaling matrix; and wherein R′ is used to recover a transmitted data/pilot/zero symbol on a sub-carrier.