Design on Unitary Space-time Constellation based on Weak-Group
Wang Jun-sheng · Communications technology · 2011
A new construction for unitary space-time codes with Givens rotation matrices is proposed.For the weak-group property of the constellation constructed by this mothod,the construction and decoding complexity could be greatly reduced.The simulation shows that the constellations constructed by the proposed method have better diversity product and diversity sum when MIMO has a certain number of transmit antenas and a wide range of constellation sizes.