Multi-user channel estimation exploiting pulse shaping information

A method for joint estimation of wireless communication channels to multiple users utilizing pulse shaping knowledge is presented. The pulse shaping in the transmitter and the receiver is incorporated into the channel estimation by approximating it with a set of pulse shaping functions. In joint multi-user channel estimation the number of parameters to be estimated grows linearly with the number of users while the number of equations remains constant. Utilizing the pulse shaping information is therefore especially useful since this economizes on the number of parameters to be estimated per user. This is illustrated with a multi-user channel estimation example.