A “mobile ad hoc network” (MANET) is an autonomous system of mobile routers (and
associated hosts) connected by wireless links, the union of which forms an arbitrary graph. The
routers are free to move randomly and organize themselves arbitrarily; thus, the network’s wireless
topology may be changed change rapidly and unpredictably. The changing state of the topology
makes MANET ideal for emergency and rescue situation. Wireless ad-hoc networks will enable
emergency services to continuously overview and act upon the actual status of the situation by
retrieving and exchanging up-to-date detailed information between the rescue parties. Deployment
of high-bandwidth, robust, self-organizing ad-hoc networks will enable quicker response to typical
what/where/when questions, than the more vulnerable low-bandwidth communication networks
currently in use. This paper addresses two proposal studies for constructing a net emergency
system using ad hoc, with perspective, these studies take in consider to minimize the control
overhead for route/location discovery by doing selective forwarding where only a few selected
nodes in the network do the broadcasting, it is assumed that the mobile nodes can discern their
relative positions with respect to other nodes in the range of communication. Using a real urban
area being set for the emergency state, NS2 simulator has been used.