Patent ID: 7929620
Filing Date: 2011-04-19
Classification: H04L

Abstract:
1. A method of using an orthogonal frequency division multiplexing (OFDM) system for blind channel estimation, comprising the steps of: (a) generating an i-th symbol block S (b) using the OFDM system for performing an inverse fast Fourier transform (IFFT) operation on the i-th symbol block and forming an OFDM symbol block; (c) attaching a guard interval sample in front of the i-th OFDM symbol block U (d) modeling the formed OFDM symbol block U wherein N and i are non-zero positive integers, and wherein the signals y wherein H is a channel matrix, u i−1,q−1 is a signal of a (q−1)th sub-block of an (i−1)th transmission block, and v i is an i-th block noise signal vector.