Optical interference cancellation in visible light identification system based on wireless mesh network topology

Pe-xin Li; Yi Ying; Cesar Azurdia

doi:10.1117/12.2013808

13 March 2013 Optical interference cancellation in visible light identification system based on wireless mesh network topology

Pe-xin Li, Yi Ying, Cesar Azurdia

Author Affiliations +

Proceedings Volume 8783, Fifth International Conference on Machine Vision (ICMV 2012): Computer Vision, Image Analysis and Processing; 87830N (2013) https://doi.org/10.1117/12.2013808
Event: Fifth International Conference on Machine Vision (ICMV 12), 2012, Wuhan, China

Abstract

Identification (ID) systems utilizing visible light are an interesting topic, and have been attracting the growing attention of researchers recently. However, LED transmitters with a unique ID illuminate a limited coverage area, therefore, limiting the communication coverage. In order to extend the communication coverage, we proposed wireless mesh networks (WMNs) for relaying the information. Routing operations in WMNs might be challenging due to various factors. In this paper we analyze the link error probability and optical power loss. Based on our proposed network topology, we further found an effective scheme, multi-stage parallel interference cancellation (PIC), to alleviate the negative impacts due to interference which comes from multi-user data transmission.

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Pe-xin Li, Yi Ying, and Cesar Azurdia "Optical interference cancellation in visible light identification system based on wireless mesh network topology", Proc. SPIE 8783, Fifth International Conference on Machine Vision (ICMV 2012): Computer Vision, Image Analysis and Processing, 87830N (13 March 2013); https://doi.org/10.1117/12.2013808

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