Patent ID: 7801247

Claim:
A method of transmitting, comprising: (a) providing a first symbol stream to a first encoder at a first time; (b) providing a second symbol stream to a second encoder at the first time; (c) encoding the first symbol stream to produce streams x 1 , x 2 ; (d) encoding the second symbol stream to produce streams x 3 , x 4 ; (e) linearly transforming the streams x 1 , x 2 , x 3 , x 4 by a permutation of said streams x 1 , x 2 , x 3 , x 4 in response to estimated channel coefficients, wherein said permutation changes the order of symbols in streams x 1 , x 2 , x 3 , x 4 ; and (f) transmitting the linearly transformed streams x 1 , x 2 , x 3 , x 4 to a recipient.