澳大利亚墨尔本大学William Shieh教授学术报告

来源:信息科学与技术学院  作者:叶佳  日期:2019-07-14  点击数:239

报告题目:Entropy Loading in Multicarrier Systems to Approach the Capacity of Colored-SNR Optical Channels

报告专家:William Shieh 教授

报告时间:2019年7月17日 上午9:30

报告地点:犀浦校区X9511

主持人:闫连山教授


报告内容简介:The modern optical networks more and more rely on reconfigurable optical add and drop multiplexers (ROADM) to enhance the network flexibility with low latency. These cascaded ROADMs bring about a well-known filter-narrowing effect that has become a severe issue in the deployed networks for 100 Gb/s and beyond transport.  This talk reviews the optimum power allocation that determines the capacity of colored-SNR Gaussian channels, and proposes entropy loading based on multi-carrier modulation that offers a theoretically optimum strategy to approach the capacity. The entropy loading is verified by a 400-Gb/s coherent optical transmission through band-limited fiber channels with cascaded ROADMs. Entropy loading can be generalized to a variety of applications under colored-SNR Gaussian channels beyond the optical communication.


报告专家简介:Prof. William Shieh received the M.S. degree in electrical engineering and the Ph.D. degree in physics from theUniversityofSouthern California, Los Angles, in 1994 and 1996, respectively. Since 2004, he has been with the Department of Electrical and Electronic Engineering,UniversityofMelbourne,Melbourne,Australia. His current research interests include OFDM techniques in both wireless and optical communications, few-mode fibers for optical communications and sensing, coherent optical communication systems, and optical packet switching. He has published more than 250 journal and conference papers, and submitted 16 U.S. patents (9 issued) covering areas of polarization controller, wavelength stabilization in WDM systems, and Raman amplifier-based systems and subsystems.  He has been awarded Australian Future Fellowship, 2011-2014.  He is a fellow of both IEEE and Optical Society of America (OSA).


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