说明：  详细介绍下一代移动通信系统MIMO_OFDM的若干关键技术研究,包括信道估计,自适应的详细原理与仿真,值的借鉴
(Detailed introduction of next generation mobile communication system MIMO_OFDM a number of key technology research, including channel estimation, adaptive principle and the detailed simulation, the reference value)