Performance Improvements in Heterogeneous Wireless Networks for First Responders

TL;DR

This paper proposes a novel SIP-based joint radio resource management framework to enhance interoperability and data services in public safety wireless networks, improving disaster response capabilities.

Contribution

It introduces an optimal radio resource management scheme that maximizes utilization while ensuring QoS for responders, advancing public safety communication systems.

Findings

Improved data rates and multimedia support for responders.

Enhanced resource utilization and service continuity.

Numerical results demonstrate effectiveness of the proposed scheme.

Abstract

Efficient communications are crucial for disaster response and recovery. However, most current public safety land mobile radio (LMR) networks only provide narrowband voice service with limited support of low-speed data services. In this paper, we study to enhance the interoperability of LMR with commercial wireless cellular networks, by which a wide variety of benefits can be offered to disaster responders, including new multimedia services, increased data rates and low cost devices. Our approach is based on Session Initial Protocol (SIP) and a joint radio resource management framework. In addition, an optimal radio resource management scheme is proposed to maximize the overall radio resource utilization and at the same time guarantee service availability and continuity quality of service (QoS) for disaster responders. The effectiveness of the proposed approach is illustrated by numerical examples.