Optimization techniques in heterogeneous mobile wireless network for fast disaster response and recovery

Abstract

Recent advances of wireless networks play an increasingly significant role in disaster response Disaster response and recovery require timely interaction and coordination of disaster responders in order to save human life and property Land mobile radio network is a wireless network which is used by public safety agencies in the disaster environment newlinefor the disaster rescue Most public safety land mobile radio networks provide only limited support of low speed data services which is not efficient for the newlineemergency communication Due to the limitation in land mobile radio network services public safety agencies have undergone many difficulties to rescue the human life in the disaster environment This limitation should be minimized in the disaster environment to save human life and property The 3G cellular networks and 4G cellular networks support a variety of multimedia application which includes higher data rates voice video and web browsing Therefore Land mobile radio accesses the cellular network radio resources for getting a wide variety of benefits such as new multimedia services increased data rates The heterogeneous wireless network supports the handoff mechanism in which users maintain the connections when they switch from land mobile radio network tocellular network and vice versa The increased data rates and multimedia newlineservice are offered to disaster responders in heterogeneous wireless network for fast response There are challenges such as handoff delay disconnection service availability problem and service continuity problem has been occurring to access other network services and technologies newline newline