A transmitted symbol matrix and a received symbol vector are transformed based on a non-identity transformation. The non-identity transformation is based on a finite spread of a channel impulse response in a time domain and is usable to improve accuracy of channel estimation in a frequency domain. A...http://www.google.fr/patents/US7551547?utm_source=gb-gplus-shareBrevet US7551547 - Delay restricted channel estimation for multi-carrier systems
Delay restricted channel estimation for multi-carrier systems