A conventional QO-STBC scheme can achieve the full rate

but at the cost of transmission diversity gain and decoding complexity.These disadvantages of the conventional QO-STBC scheme are mainly a result of interference terms in the detection matrix.In order to solve the problem

this paper proposes a new QO-STBC scheme which transforms the original detection matrix into a diagonal matrix using Givens rotation algorithm and eliminates interference terms.The proposed method achieves improved diversi...