Soldiers get rescue services through static wireless node heliports and medical ambulance to provide special service, in a battle field. The Mobile Ad hoc Network environment takes wireless communication across border communication to connects the source of multiple serves in military applications. The mobile node acts as mobile equipment to rescue the soldier. Due to increasing delay tolerance and latency overhead the performance eon network is degraded, to resolve this problem , this paper concentrates on Region and Mobility based Route Request Processing in AODV (RMRRP) is proposed in controlling Route Request Processing mechanism based on node mobility for reducing the routing overhead in AODV. The routing algorithm which guarantees services to the soldier in a shortest time also evaluate the energy efficiency of RMRRP with the existing AODV, DSDV, DSR routing algorithms. Efficiently reduce the overall overhead to a considerable level and significantly improve the overall performance by finding a rectangular region as a forwarding zone and only the nodes within the rectangular region are allowed to forward the RREQ message from source to the destination, hence the overhead in establishment of a stable shortest path gets reduced very much. Network region is minimized. Routing request packets generated is less and route request is reduced. Region width is limited to 150m and within that covered area only route discovery and route maintenance is carried out. Control packets are reduced within the limited rectangular region and data packets are able to send more. Avoiding link breaks to send and receive more data packets with a limited number of control packets hence consumes considerable energy. Simulation result reveals that with nodes 50 the Packet delivery Fraction is 90.60 , Routing overhead is 11376, Normalized Routing Load is 3.61 , Throughput is 261.94Kbps, MAC Load is 39.17 , Energy consumption is 4.64 Joules.
