摘要
研究了MIMO系统中基于奇异值分解(SVD)、几何均值分解(GMD)与均匀信道分解(UCD)的预编码算法原理,并对三种算法做了详细的对比研究。通过在反馈噪声误差不同的情况下计算SVD,GMD与UCD的误码率,可以观察预编码矩阵的反馈误差对SVD,GMD与UCD性能的影响。
The principle of precoding algorithm of the singular value decomposition（SVD）,the geometric mean diameter decomposition（GMD） and uniform channel decomposition（UCD） algorithms for MIMO system are studied,and a detailed comparative study of these three algorithms are performed.According to the calculation of the bit error rate of SVD,GMD and UCD under the condition of different feedback noise errors,the influence of the feedback errors of the precoding matrix on the performance SVD,GMD and UCD can be observed.
出处
《现代电子技术》
2010年第7期68-70,共3页
Modern Electronics Technique
关键词
奇异值分解
几何均值分解
均匀信道分解
预编码
反馈噪声误差
singular value decomposition
geometric mean diameter decomposition
uniform channel decomposition
precoding
feedback noise error
