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分析了MIMO OFDM的系统模型,研究了MIMO OFDM系统的自适应调制技术,给出了完整的自适应算法,探讨了自适应MIMO OFDM系统的频谱效率。仿真结果表明,自适应调制提高了MIMO OFDM的误比特率性能。
The system model of MIMO OFDM is analyzed, the adaptive modulation technique of MIMO OFDM system is studied, a complete adaptive algorithm is given, and the spectral efficiency of adaptive MIMO OFDM system is discussed. Simulation results show that adaptive modulation improves the bit error rate performance of MIMO OFDM.