International Journal on Computer Science and Technology (IJCST)
The broadcast nature and restricted usage of resources, made it difficult to provide security to wireless sensor networks. In recent times reactive jamming attacks became a big threat to the wireless sensor networks. These attacks can produce a great damage to the legitimate communications. The reactive jammer attack is a light weight attack which is easy to launch but difficult to detect. This paper suggests a new scheme to neutralize malicious reactive jammer nodes by changing the characteristic of trigger nodes to act as only receiver.