The results show that BB and stack algorithms achieve ML performance and have better performance than SDR algorithm, but SDR algorithm approaches ML performance in polynomial complexity.

• 仿真结果表明分枝定界和堆栈算法取得了最大似然的性能，其性能要优于半定松弛算法，半定松弛算法以多项式复杂度取得了逼近最大似然的性能。