On Virtual Emotion Barrier in Internet of Things

A barrier-coverage has attracted much interests of researchers because it can guarantee to detect any movement of mobile objects. Also, thanks to recent advancement of technology, it is possible to recognize human emotion by facial expression and human motion or activity. Then, the emotion recognition can be applied to various services and applications appropriately. Recently, it has been developed to sense emotion by wireless signal. One of issues for emotion recognition is to increase the recognition accuracy. In this paper, we introduce a new type of barrier, virtual emotion barrier, which is able to detect emotion by devices with wireless signal in Internet of Things (IoT) environment. Then, we formally define a problem whose objective is to construct virtual emotion barrier in the given area including IoT devices such that the detection accuracy of emotion by virtual emotion barrier is maximized. To solve the problem, we propose a greedy-emotion-accuracy approach. Moreover, we discuss future issues and possible research directions for virtual emotion barrier.

I. Introduction

Recently, barrier-coverage has been studied by many researchers because it has much potential to be utilized to numerous applications with surveillance, intrusion detection, border patrol, etc [1]–[3]. After completing a barrier by a set of nodes in the given field, any penetration or movement from one region to another is guaranteed to be detected by at least one node in the formed barrier. Due to the its valuableness, the concept of barrier-coverage can be applied to various environments and areas such as wireless sensor networks (WSN), UAV networks, Internet of Things (IoT) [6]–[9]. In particular, it is highly anticipated that IoT plays a key role for future smart city with heterogeneous IoT devices [10]–[13]. Hence, we consider the barrier-coverage by IoT-based devices towards advanced future smart city.