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2016 Optical Communication Technology

Jan 10, 2017

5G channel coding techniques

October 2016, Huawei announced after April this year China IMT-2020 (5G) 5G Group on the first stage empty after verification and testing key technologies in 5G channel coding field polarization code (PolarCode) technique again on the latest breakthroughs.

"Reviews" still and moving scenes, short and long field test scene the package excellent gain stability, in combination with high-frequency millimeter-wave band testing rate of up to 27Gbps. 5G implementation of 10Gbps and 20Gbps peak rate, billions of connections, 1 millisecond of delay must be based on the revolutionary technological innovation to improve network performance. Efficient channel coding technology in as little as possible cost increase the reliability of information transmission, channel coding efficiency improvement will be directly reflected in the improved spectral efficiency. Structure for its channel capacity or close the channel capacity (Shannon limit) channel coding methods, and practical sacrifices complexity decoding algorithm of line has been a goal of channel coding technology.

Chip optical transmission bandwidth density increased by 10 to 50 times times research

March 2016, the nature (Nature) magazine, an article by United States University of California, Berkeley campus, University of Colorado and Massachusetts Institute of technology researchers published papers, said it has successfully used existing CMOS standard technologies, to produce a single-chip integration of Photonic and electronic components. This new chip is up to 300 Gbps bandwidth density per square mm, is 10~50 times the electronic microprocessor on the market today. Integration of Photonic and electronic components of semiconductor chip can transmit data at higher speeds, improve performance and reduce power consumption.