Mobility-Behaviour Aware Access Point Assignment Technique for LiFi-Based Vehicle in Smart Building Access Control

Abstract

The building access control (BAC) is an emerging trend for the smart buildings that is expected to leverage the wireless technology such as hybrid Light-Fidelity (LiFi)/WiFi networks that provides high speed connection for access point (AP) assignment and data exchange purposes. Due to LiFi access points’ short coverage areas and user mobility, such networks have a difficult handover (HO) process. So far, most of the existing APA studies in LiFi networks consider pedestrian users in indoor environment and no study considered APA in vehicle-to-building scenario. The orientation of the device due to the mobility of the vehicle, including speed and pausing behavior, can impact the HO process and therefore cause delay. This study proposes a novel access point assignment (APA) technique for hybrid LiFi/WiFi wireless networks that is suitable for BAC. Unlike mobile users in an indoor area, it considers varying speed with pausing (VSP) and the orientation-based random waypoint (ORWP), user location, user speed, and optical gain data rate for making the decision called mobility-behavior aware APA (MBA-APA).The proposed method is designed for multi-band network where RFID is added as an alternative AP if both LiFi and WiFi failed, and aims to eliminate the HO in such environment with optimal network selection. The proposed MBA-APA achieves better APA and eliminates HO in all cases compared with benchmark works.