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英国华威大学(Warwick)招收光通信方向奖学金和CSC博士
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英国华威大学(University of Warwick) Assistant Professor Dr. Tianhua Xu课题组招收光通信方向奖学金和CSC博士，优秀者提供奖学金 研究方向： 1. Digital signal processing and machine learning in optical communication networks In optical communication, high performance computing and data center systems, as high-speed and high-order modulated signals are applied, system performance will be significantly degraded by transmission impairments, such as bandwidth limitation, dispersion, polarization dependent loss, channel fading, laser phase noise and nonlinear distortions from optical channels and components. In this project, reconfiguration of optical communication networks and data center systems will be investigated based on digital signal processing and machine learning techniques in conjunction with software-defined transceivers, to compensate for transmission impairments and to realize the optimum detection of optical signals. 2. Information rates and channel estimation of optical networks In optical communication networks, signals of different users are often multiplexed at different wavelengths, and will interact with each other due to the linear and nonlinear effects in optical channels and devices. Thus it is of importance to develop accurate physical estimation for nonlinear channels and components to assess the achievable capacity and mutual information of optical communication networks. In this research, fundamental limits of optical transparent networks will be studied considering the linear and nonlinear physical impairments in the link, such as chromatic dispersion, polarization mode dispersion, laser phase noise, self-/cross-phase modulation, four-wave mixing, channel memory etc. 3. Optimization in elastic optical networks to maximize the throughputs Based on software-defined transceivers and elastic optical networks, the transmission parameters, e.g. forward error correction (FEC) schemes, modulation formats, frequency separation (in flex-grid networks), optical launch powers and symbol rates etc. will be adapted and tailored to physical channels and components in the transparent wavelength routed networks. In addition, probabilistic shaping and geometric shaping will be applied to optimize the signals to have better tolerance against the degradations. All these degrees of freedom will be jointly optimized in conjunction with the routing of lightpaths through the optical network to maximize the overall capacity and resources. University of Warwick has ranked 57th in QS World University Rankings 2018, and consistently ranks in the top 10 of all major rankings of British universities. 专业要求：通信、电子、数字信号处理、光学、物理及相关专业 英语要求：雅思总分不低于6.5，单科成绩不低于6.0 (英语成绩可以入学前提交) For more details regarding the application, please contact Dr. Tianhua Xu Email: tianhua.xu@warwick.ac.uk Homepage: https://warwick.ac.uk/fac/sci/eng/people/profile/?tag=tx [ Last edited by beiyangxuezi on 2018-2-9 at 21:35 ] |
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