Abstract
Highly directional laser-based wireless optical radios are able to spatially reuse several THz of spectrum but suffer from link setup delays. In delay averse and high-throughput self-configuring networks, agile neighbor discovery is of critical importance. Given an optical wireless network with microelectromechanical systems based receivers, we explore the use of adaptive combinatorial group testing and contour tracing to achieve very low neighbor discovery latency. We propose a pattern-based algorithm that leverages group testing and contour tracing techniques to significantly reduce latency. Evaluating our algorithms, we compare hierarchical group testing algorithms to state-of-the-art raster and Lissajous pattern-based scanning and report 99.92% and 87% reduction in latency, respectively, for an array of one million micromirrors. The proposed pattern-based algorithm, when compared to hierarchical group testing and the Moore-neighbor contour tracing algorithms, achieves 63.4% and 4.91% reduction in latency, respectively.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Danilo Bórquez-Paredes, Alejandra Beghelli, Ariel Leiva, Nicolás Jara, Astrid Lozada, Patricia Morales, Gabriel Saavedra, and Ricardo Olivares
J. Opt. Commun. Netw. 14(8) 667-679 (2022)
Bing-Xi Pei, Shi Xu, Zhang Luo, Qin Wang, Ming-Che Lai, and Wei-Feng He
J. Opt. Commun. Netw. 14(8) 680-690 (2022)
Yuhang Zhou, Zhiqun Gu, Jiawei Zhang, and Yuefeng Ji
J. Opt. Commun. Netw. 15(1) 29-42 (2023)