Yi Fang
Guangdong University of Technology
Yi Fang is a full professor with the Guangdong University of Technology, China, where he serves as the Vice Dean for the School of Information Engineering. He received the Ph.D. degree in communication engineering, Xiamen University, China, in 2013. He was a Visiting Professor in the University of Toronto from June 2024 to July 2024. He worked as a Postdoctoral Fellow in the Chinese University of Hong Kong, a Research Fellow in the Nanyang Technological University, a Visiting Scholar in the University College London, a Research Assistant in the Hong Kong Polytechnic University, from 2012 to 2017. He has published over 200 research papers, including more than 100 IEEE journal papers. He also holds 60 granted patents related to channel coding and modulation, including 10 US patents. He has served as an Associate Editor for IEEE Transactions on Communications, IEEE Transactions on Mobile Computing, IEEE Transactions on Vehicular Technology, etc. In addition, He served as the Symposium/Workshop/Organizing/Publicity/Local Arrangement Co-chair for various international conferences, including IEEE ISIT 2026, IEEE/CIC ICCC 2021-2025, ISTC 2018. He is a Senior Member of IEEE. His currently research interests include information and information and coding theory, digital modulation, and cooperative communications.
Talk Title: Design of Protograph LDPC-Coded BICM-ID for Visible Light Communication Systems
As a typical example of bandwidth-efficient techniques, bit-interleaved coded modulation with iterative decoding (BICM-ID) provides desirable spectral efficiencies in various wireless communication scenarios. In this talk, we will introduce a novel BICM-ID framework under color-shift-keying (CSK) modulation to achieve spectrally efficient transmissions in visible light communication (VLC) systems. To fully explore the BICM-ID benefit, we first propose an irregular mapping scheme, in which a standardized constellation labeling (called “Standard constellation”) and a new constellation labeling (called “Target constellation”) are separately applied to modulate two different coded sub-blocks in a codeword to optimize the error performance of the CSK-aided VLC systems. Then, we conceive a block-matched protograph extrinsic information transfer (BM-PEXIT) algorithm tailored for the irregular-CSK-mapped BICM-ID configuration to analyze the performance of protograph LDPC codes in such scenarios. Using BM-PEXIT algorithm, we construct two types of protograph LDPC codes that outperform the conventional protograph LDPC codes. Both analytical and simulative results show that the proposed irregular-CSK-mapped BICM-ID is capable of achieving outstanding performance, and is a promising transmission solution for high-speed VLC applications.