Patent ID: 7415076

Claim:
A method of encoding, comprising: generating a space-time code word using a stacking construction for a multi-input multi-output (MIMO) block fading channel, the code word being defined by c = [ x _ ⁢ M 11 x _ ⁢ M 12 … x _ ⁢ M 1 ⁢ M x _ ⁢ M 21 x _ ⁢ M 22 … x _ ⁢ M 2 ⁢ M ⋮ ⋮ ⋮ x _ ⁢ M L t ⁢ 1 x _ ⁢ M L t ⁢ 2 … x _ ⁢ M L t ⁢ m ] , wherein the stacking construction specifies C as a linear L t ×n space-time code of dimension k, x is an arbitrary k-tuple of information bits, and M ij is a k×n/M binary matrix, L t representing the number of transmit antennas.