In a network of multiple devices, neighbor discovery is the process in which the individual devices make their existence known to other devices in the network in order to begin communicating with one another. The neighbor discovery protocol is an essential part of wireless networks used for communication between devices. In our design, we are considering a 2-D network of devices. Each device/node possesses multiple directional, free-space-optical (FSO) transceivers. These transceivers emit optical, LED, or infrared communication beams, which can be electronically controlled to change the direction in which they emit the beam. Through our simulation and prototyping, we can determine the optimal placement of transceivers and nodes in order to ensure that communication is possible from any direction. Despite the devices having no prior knowledge of each other’s location, using complex algorithms, we are able to guarantee that this discovery is possible within a limited amount of time. With our findings regarding the discovery time of nodes, we are able to implement our algorithm into a working prototype, rather than in just a simulation. In order to more accurately model a real-world scenario, we plan to implement our algorithm and schematics into 3-D space, where our transceivers lie in a spherical structure, rather than a flat circular plane. Our research project has allowed us to gain hands-on experience in developing wireless transceivers, writing code for embedded systems, computer networking, and distributed algorithms. The project helped us get accustomed to research methodologies.
Authors: Jessica Vazquez, Nero Tran Huu, Yicheng Qian
Faculty Advisor: Suman Bhunia, Computer Science and Software Engineering
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