Handover Call Admission Control for Mobile Femtocells with Free-Space Optical and Macrocellular Backbone Networks

TL;DR

This paper proposes a comprehensive handover control scheme for mobile femtocellular networks utilizing free-space optical and macrocellular backhaul networks, aiming to reduce call drops and improve bandwidth efficiency.

Contribution

It introduces a novel handover control framework for femtocell networks with specific strategies for backhaul network switching and resource allocation.

Findings

Negligible handover call dropping probability achieved

Higher bandwidth utilization demonstrated

Effective link switching for FSO backhaul networks

Abstract

The deployment of mobile femtocellular networks can enhance the service quality for the users inside the vehicles. The deployment of mobile femtocells generates a lot of handover calls. Also, numbers of group handover scenarios are found in mobile femtocellular network deployment. The ability to seamlessly switch between the femtocells and the macrocell networks is a key concern for femtocell network deployment. However, until now there is no effective and complete handover scheme for the mobile femtocell network deployment. Also handover between the backhaul networks is a major concern for the mobile femtocellular network deployment. In this paper, we propose handover control between the access networks for the individual handover cases. Call flows for the handover between the backhaul networks of the macrocell-to-macrocell case are proposed in this paper. We also propose the link switching for the FSO based backhaul networks. The proposed resource allocation scheme ensures the negligible handover call dropping probability as well as higher bandwidth utilization.