Information and Communication technology try to reach the realistic world in the virtual system via using the 4G communication devices in real time applications. While adopting the 4G communication devices in the exiting environment, various Quality of Services issue occurs to meet the realistic system. QoS issues include the device availability, accessibility and its performance in the applications. The device availability based on the network infrastructure and its environment. The accessibility based on the procedure used to determine the device and identify the same. There are various techniques and technical protocol issues are involved in the device identification and its utilization or performance. The routing process involved the accessibility and performance of device in the network. This research initiated to study the exiting routing protocol algorithms for the 4G devices in the ado-hoc network and optimize the same. Through the optimization of Routing algorithm for 4G devices, the accessibility and its performance will strengthen the Quality of Service for the 4G device users in the Adhoc Network.