7.5 本章小结
首先，以DCO-OFDM为基础，设计了NOMA-DCO-OFDM系统，分析了功率分配因子和IFFT输出时域信号方差之间的关系；然后，在物理可实现LED线性工作区输入信号范围受限的条件下，推导了用户在受非线性限幅噪声影响时的信干噪比公式；再次，介绍了串行干扰消除（SIC）算法，以及几种复杂度较低的功率分配方法；最后，仿真分析了LED的半功率角、光电检测器的FOV角、功率分配系数对系统和速率的影响。
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