研究目的
To investigate various potential OFDM forms that are suitable for IM/DD channel, elaborate the design principles of different OFDM transmitters, investigate different types of receivers including the proposed iterative receiver, analyze the spectral efficiency and decoding complexities of different OFDM systems, and assess the detection performance of different receivers through simulation results.
研究成果
The research concludes that DCO-OFDM is more spectrally efficient than the non-DC-biased systems, and hybrid systems achieve a better tradeoff between the spectral efficiency and power efficiency. The proposed iterative receiver has the highest complexity but is far superior to other receivers, especially the basic receiver. These results reveal the potential of OFDM systems in IM/DD channels for optical communication.
研究不足
The research focuses on the theoretical and simulation aspects of OFDM systems for IM/DD optical communication, with limited discussion on practical implementation challenges and hardware constraints.
