The Department of Electronic and Information Engineering (EIE) aims at solving complex problems with innovative ideas and at producing high-impact research that is relevant to industry and society. Major research endeavours within the Department are conducted within four research groups. The foci of these groups are nonlinear circuits and systems (including power electronics, wireless power transfer technologies, renewable energy systems, LED lighting systems, and complex networks), communications (including optical and wireless communications, vehicular communications, channel coding, optical sensor systems), multimedia signal processing (video and image coding, speech and pattern recognition, artifical intelligence and machine learning), and photonic systems and devices (microscopy techniques and photovoltaic devices). Other research topics include information security, bio-inspired optimization techniques and forensics. Currently, over a hundred funded research projects are being undertaken. These projects are funded by the Hong Kong government, the Chinese government or our industrial partners such as Huawei Technologies and PCCW/HKT. Most of the research students will receive financial support during their PhD study.