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Updated: Apr 28, 2026

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
SSBI mitigation at 60GHz OFDM-ROF system based on optimization of training sequence
Xin Wang1, Jianjun Yu, Zizheng Cao
1Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education, School of Information Science and Engineering, Hunan University, Changsha, China.
Abstract:
We have theoretically and experimentally investigated the effect of the interference between subcarrier-signal beat interference (SSBI) in 60 GHz orthogonal frequency division multiplexing - radio-over-fiber (OFDM-ROF) system. In order to reduce the influence of SSBI, we compared four kinds of OFDM frames with different training sequences as all-real, all-complex, complex-zero and real-zero training. The experimental results show the power penalty of all-real, all-complex, complex-zero and real-zero training is 2.5, 5.5, 4 and 1dB at BER of 1x10(-3) after 20 km standard single mode fiber (SMF) transmission, respectively. The real-zero training OFDM frame with interleave structure and lower modulation order signal suffered from the least SSBI shows the best performance.
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