1. A method for estimating a vector of emitted symbols over a MIMO transmission channel emitted by a first plurality of emitting antennas, comprising: receiving a vector of received symbols on a second plurality of receiving antennas; estimating said vector of emitted symbols by: calculating a metric associated with a criterion for each vector of a subset of all possible vectors of emitted symbols; and selecting an estimation for said vector of emitted symbol as the vector of emitted symbols among said subset which minimizes said metric.