11-04-2013, 03:23 PM
The 2ACK Scheme to Detect Routing Misbehavior in Mobile Ad Hoc Networks Using OLSR
The 2ACK Scheme to Detect.docx (Size: 14 KB / Downloads: 18)
ABSTRACT:
MANETs (Mobile Ad-hoc Networks) consists of nodes which communicate through routers thus forming a network topology. Such networks are unstable due to mobility factor. Networks nodes move randomly and changes unpredictably and fastly. Due to this changing topology packet loss is a common phenomenon.
Routing protocols used in such type of networks generally based on the assumption that, all participating nodes will be fully cooperative. But, due to the open structure node misbehavior may exist and packet loss occurs. Among them one type of misbehavior is that some nodes will take part in routing establishment processes but they do not respond to forward data packets and simply dismiss the packets.
To reduce extra routing overhead, and packet loss, only a few of the received data packets are acknowledged in the 2ACK scheme. It reduces the routing overhead. It has been observed that by using the 2ACK scheme the packet delivery ratio is increased. The results of the 2ACK-OLSR indicates that it reduces the packet loss and increase the routing overhead.