1：Experimental Design and Method Selection:

The methodology involves designing a pilot power optimization based channel estimation method for optical OFDM/OQAM systems. The theoretical models include the use of a specially designed filter bank with localization (TFL) property to overcome the orthogonal condition for OFDM/OQAM only holds in the real field.

2：Sample Selection and Data Sources:

The simulation is validated by simulating optical OFDM/OQAM system via the commercial software VPI Transmissionmaker 9.

3：List of Experimental Equipment and Materials:

8. 3. List of Experimental Equipment and Materials: The isotropic orthogonal transform algorithm (IOTA) filter and the square raised root cosine (SRRC) filter are employed as the prototype filters. The FFT/IFFT size in the simulation system is 128 and the 4-QAM modulation format is adopted.

4：Experimental Procedures and Operational Workflow:

The simulation involves inserting 8 pilots in each OFDM/OQAM block for phase correction, setting the sampling rate as 15GS/s, and using each OFDM/OQAM frame contains 100 blocks with the first three blocks used as the training sequence.

5：Data Analysis Methods:

The performance is analyzed based on bit-error-rate (BER) and mean square error (MSE) performance for the PHO method and IAM-R method with using of both IOTA filter and SRRC filter.