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简单地描述了在平坦消失的无线信道中多输入多输出(MIMO)系统的基本工作原理;讨论了MIMO系统的三 大关键核心技术:MIMO无线信道建模、多天线空时编码和接收机设计;分析了MIMO技术的四大优点:阵列 增益、空间分集、空间复用和干扰减少。未来的第二代无线局域网和第四代移动通信系统等采用MIMO技术 将是大势所趋。
Briefly describes the basic working principle of a MIMO system in a flat vanishing wireless channel; discusses three key core technologies of a MIMO system: MIMO wireless channel modeling, space-time coding and receiver design for multiple antennas The four major advantages of MIMO technology are analyzed: array gain, space diversity, spatial multiplexing, and interference reduction. The future of the second generation of wireless LAN and fourth generation mobile communication systems using MIMO technology will be the trend.