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 due to the packet delay and loss and less resource utilization. So high resource utilization techniques are needed. The Session Initiation Protocol (SIP) and a joint radio resource management framework is a current technology to support the interoperability between cellular and LMR networks. SIP is seamless handoff scheme. 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 FDS and IDS to reduce the packet delay and loss in the interoperable between cellular and LMR networks. In addition, an optimal bandwidth utilization scheme is proposed to maximize the overall radio resource utilization. In our first experiment, we are applying the proposed approach to the interoperable cellular and LMR networks. The two dynamic scheduler FDS and IDS is reduced the packet delay and loss. The proposed approach is a novel one in interoperable cellular and LMR networks besides being the ?rst approach to tackle the issue of packet delay and loss in the heterogeneous mobile wireless network. The proposed scheduler is good to guarantee service availability and continuity quality of service (QoS) for disaster responders .Our approach also used for high resource utilization in the same network

Description