In this study, we investigate a relay-assisted visible light communication (VLC) system where an intermediate light source cooperates with the main light source. Specifically, we consider two light sources in an office space; one is the information source employed on the ceiling…

The requirement of critical tasks, where it was inconvenient, dangerous or life-threatening for a human operator to be present, gave rise the development of unmanned ground vehicles. With the beginning of an era of unmanned ground vehicles, we have to…

The use of quaternion data can provide benefit in applications like robotics and image recognition, and particularly for performing transforms in 3-D space. Here, we describe a kernel adaptive algorithm for quaternions. A least mean square (LMS)-based method was used,…

Efficient authentication in the vehicular networks has been studied by several researchers in the past. However, there are still several issues to be addressed like high communication/ computation overhead, security problems, etc. In this paper, we propose an Efficient Authentication Protocol (EAP) for…