Study of IQ imbalance in a single-side band radio-over-fiber system based on OFDM-MSK modulation

Xinying Li D.V.M.; Yufeng Shao; Wuliang Fang; Bo Huang; Junwen Zhang; Shumin Zou; Chunning Hou; Yuan Fang; Xiao Liu; Xi Zheng; Nan Chi

doi:10.1117/12.888585

18 February 2011 Study of IQ imbalance in a single-side band radio-over-fiber system based on OFDM-MSK modulation

Xinying Li D.V.M., Yufeng Shao, Wuliang Fang, Bo Huang, Junwen Zhang, Shumin Zou, Chunning Hou, Yuan Fang, Xiao Liu, Xi Zheng, Nan Chi

Author Affiliations +

Proceedings Volume 7988, Optical Transmission Systems, Switching, and Subsystems VIII; 79880Y (2011) https://doi.org/10.1117/12.888585
Event: Asia Communications and Photonics Conference and Exhibition, 2010, Shanghai, Shanghai, China

Abstract

We propose and simulate a single-side band (SSB) Radio-over-Fiber ( RoF ) system based on OFDM-MSK modulation. In-phase/quadrature-phase (IQ) imbalance effect can significantly degrade the system performance. In order to obtain a better system performance, at the transmitter, the phase departure tolerance should be within 1 degree and the amplitude departure tolerance should be within 5% in the electrical domain, the phase departure tolerance should be within 10 degrees and the amplitude departure tolerance should be within 40% in the optical domain, the departure tolerance of splitting ratio should be within ±12%, and at the same time, time misalignment should be within ±32ps. At the receiver, the phase departure tolerance should be within 2 degrees and the amplitude departure tolerance should be within 10%. Furthermore, it's further found that the electrical part of the transmitter presents a stricter requirement on the IQ balance than the receiver, while the receiver presents a stricter requirement on the IQ balance than the optical part of the transmitter.

Citation Download Citation

Xinying Li D.V.M., Yufeng Shao, Wuliang Fang, Bo Huang, Junwen Zhang, Shumin Zou, Chunning Hou, Yuan Fang, Xiao Liu, Xi Zheng, and Nan Chi "Study of IQ imbalance in a single-side band radio-over-fiber system based on OFDM-MSK modulation", Proc. SPIE 7988, Optical Transmission Systems, Switching, and Subsystems VIII, 79880Y (18 February 2011); https://doi.org/10.1117/12.888585

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