Study of performance TORA and OLSR Routing Protocols Under the influence of the Black Hole Attack in AD-HOC Networks with High TrafficLoad

Mobile Ad-Hoc Networks are used for data transfer. The nodes of such networks do not require presetting. They are characterized by dynamic data transfer during their movement of the nodes. MANET could be targeted by potential security breaches. Black hole attack is one of the serious attacks targeting wireless AD_HOC networks through a false point whichcan absorb data and send them to another place or neglect them. This is due to the lack of central control node which is able to manage communications. This research investigates the effects of the black hole on the performance of hybrid routing protocol Temporally Ordered Routing Algorithm (TORA) and proactive routing protocol Optimized Link State Routing (OLSR) for a variable number of mobile nodes in different speeds in a high load environment.