An Approach for Robust Routing Algorithms in Ad hoc Network

Abstract

Failure is one of the important issues in Ad hoc Network. To transmit the response message, DSR or AODV algorithms reuse a path that was established during the message transfer request. In this case, the failure of the mobile host on the established path is more sensitive. We propose a novel approach to make robust algorithms by preventing this failure problem. The failure is classified in two types according to possibility of prediction: the predictable failure and the unpredictable failure. Predictable failure caused by the limited power and the mobility of a mobile host. On the other hand, unpredictable failure occurs suddenly without enough time for the problem solving. This paper suggests a novel approach that can treat the problem actively and intelligently for a predictable failure. This approach is similar to the procedure of showing a coworker the ropes in company. In other words, when the failure of a mobile host on the established path is predicted, the mobile host delegates power to a neighbor, and then notifies to a previous mobile host on the path. © 2008 IEEE.