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针对传统光正交频分复用接入无源光网络(OFDMA-PON)在下行方向上,ONU接收机对OLT发送的广播信号全部进行接收处理这一现象,提出了3种不同的基于时域的选择性接收模式,并通过仿真验证出3种选择性接收模式确实可以有效节约OFDMA-PON系统的能耗。
In view of the phenomenon that the ONU receiver receives and processes all the broadcast signals transmitted by the OLT in the downstream direction of the conventional optical Orthogonal Frequency Division Multiplexing Access Passive Optical Network (OFDMA-PON), three different time-domain based time-domain The selective reception mode of the OFDMA-PON system can be effectively verified by simulation. The three selective reception modes can indeed save the energy consumption of the OFDMA-PON system.