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在最大似然检测中,球形译码算法是一种有效的快速算法。提出一种基于MIMO系统的新的快速球形译码算法,它的复杂度比传统的算法要小的多。在提出的方法中,初始半径的选择并不重要。这种改进算法的译码性能和复杂度由两个参数来控制。因此,该方法存在着译码性能和复杂度的均衡。通过计算机仿真,可以看到,提出改进算法的译码性能得到了较大的提高。
In maximum likelihood detection, the spherical decoding algorithm is an efficient and fast algorithm. A new fast spherical decoding algorithm based on MIMO system is proposed. Its complexity is much less than the traditional algorithm. In the proposed method, the choice of the initial radius is not important. The decoding performance and complexity of this improved algorithm are controlled by two parameters. Therefore, this method has the balance of decoding performance and complexity. Through computer simulation, we can see that the decoding performance of proposed improved algorithm has been greatly improved.