Abstract

In this paper, we investigate an animal-human cohabitation problem with the help of machine learning and fiber-wireless (FiWi) access networks integrating cloud and edge (fog) computing. We propose an early warning system which detects wild animals near the road/rail with the help of wireless sensor networks and alerts passing vehicles of possible animal crossing. Additionally, we show that animals’ detection at the earliest and the related processing, if possible, at sensors would reduce the energy consumption of edge devices and the end-to-end delay in notifying vehicles, as compared to the scenarios where raw sensed data needs to be transferred up the base stations or the cloud. At the same time, machine learning helps in classification of captured images at edge devices, and in predicting different time-varying traffic profiles— distinguished by latency and bandwidth requirements—at base stations, including animal appearance events at sensors, and allocating bandwidth in FiWi access networks accordingly. We compare three scenarios of processing data at sensor nodes, base stations and a hybrid case of processing sensed data at either sensors or at base stations, and showed that dynamic allocation of bandwidth in FiWi access networks and processing data at its origin lead to lowering the congestion of network traffic at base stations and reducing the average end-to-end delay.

Highlights

  • IntroductionWith every passing year the animal habitat is shrinking, and new transport infrastructures (e.g., highways, railways, etc.) are built across densely forested areas to connect cities

  • With every passing year the animal habitat is shrinking, and new transport infrastructures are built across densely forested areas to connect cities

  • A Raspberry Pi (R-Pi) 3 as an end device is connected to a passive infrared (PIR) sensor to detect the movement of animals, and the PIR sensor is used to wake up a 5 megapixel (MP) camera module to capture images of animals

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Summary

Introduction

With every passing year the animal habitat is shrinking, and new transport infrastructures (e.g., highways, railways, etc.) are built across densely forested areas to connect cities. Even though the technological advancements in the computing and networking are today utilized to build smart cities, rails, etc., these systems have not been considered for animal-human cohabitation [3]. Various sensors such as infrared cameras, optical fiber sensors, radars, etc. An important aspect in a smart early warning system is to study a trade-off between the amount of data to be processed at the end devices and the data to be sent to upper layers for making inference (and generating alerts), such that consumed energy and end-to-end latency in transmission and processing tasks are minimum. Our experimental results show that data processing at end devices could save around 57% energy

Related Work
FiWi Networks
The Role of Machine Learning
Experimental Setup and Measurement Results
A Framework for an Early Warning System
Performance Evaluation
Conclusions
Full Text
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