Abstract
In this paper, we propose a novel beam-and-probabilistic shaping technique based on orbital angular momentum (OAM) modes for indoor optical wireless communications (OWC) to improve the system effective coverage. Our results show that both Huffman coding (HC) and sign inversion coding (SIC) based probabilistic shaping schemes can improve the effective coverage for 16QAM modulation format while only SIC based probabilistic shaping can improve the effective coverage for 64QAM modulation under different beam shaping schemes with different power ratios of different modes. Furthermore, it can be seen that more significant performance improvement can be obtained by employing both of the probabilistic shaping schemes by decreasing the power ratio of the fundamental mode to the higher-order OAM mode. Therefore, further increment of the effective coverage can be predicted with the probabilistic shaping schemes by decreasing the power ratio.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
