基于模糊层次分析的MIMO/SA多天线系统算法性能评估方法

多输入多输出（multiple input and multiple output, MIMO）和智能天线（smart antenna, SA）是第四代移动通信系统的关键技术，其结合的MIMO/SA多天线系统所采用算法的不同，直接影响系统性能，准确评估MIMO/SA多天线系统的算法性能，对于实际应用十分重要。结合波达方向估计算法、空时编译码算法、波束成形算法的算法性能指标，应用模糊层次分析法建立了层次结构模型，确定了各算法性能指标的权重和隶属度，得到了MIMO/SA多天线不同实现方案中不同算法的模糊综合评估方法，进行了仿真验证。仿真结果表明，评价方法能在不同的MIMO/SA多天线实现方案中选择出优化方案，对MIMO/SA多天线系统的方案设计与算法实现有较好的参考价值。

Method to evaluate algorithm performance of MIMO/SA multi-antenna system based on fuzzy analytic hierarchy process

Multiple input and multiple output (MIMO) and smart antenna (SA) are the key technologies in the fourth generation mobile communications. There are different algorithms in the multi-antenna system which is combined by MIMO and SA, and they effect on the MIMO/SA multi-antenna system performance. How to evaluate the system performance accurately becomes more and more important for practical application of a MIMO/SA multi-antenna system. According to the performance parameters of direction of arrival algorithms, space and time coding and decoding algorithms, beamforming algorithms, the hierarchical structure model is established by using the fuzzy analytic hierarchy process method, and the weights and membership of these algorithms are determined, and the fuzzy comprehensive evaluation method of different combination systems by MIMO/SA multi-antenna is obtained, and this method is checked by simulation. The results of simulation show that the fuzzy comprehensive evaluation method can select a option combination from some different the MIMO/SA multi-antenna combinations, and is helpful for designing the MIMO/SA multi-antenna system and realizing the algorithms.