关于MIMO技术在频域、功耗等方面的效率的研究。作者来自林雪平大学和诺基亚公司。Contents 1 Introduction and motivation 158 1.1 Cellular Networks 160 1.2 Definition of spectral efficiency 167 1. 3 Ways to Improve the spectral efficiency 173 1. 4 Summary of Key points in Section 1 214 2 Mass