Abstract
Problem statement: In Mobile Ad hoc Network (MANET), both the routing layer and the Medium Access Control (MAC) layer are vulnerable to several attacks. There are very few techniques to detect and isolate the attacks of both these layers simultaneously. In this study, we developed a combined solution for routing and MAC layer attacks. Approach: Our approach, makes use of three techniques simultaneously which consists of a cumulative frequency based detection technique for detecting MAC layers attacks, data forwarding behavior based detection technique for detecting packet drops and message authentication code based technique for packet modification. Results: Our combined solution presents a reputation value for detecting the malicious nodes and isolates them from further network participation till its revocation. Our approach periodically checks all nodes, including the isolated nodes, at regular time period λ. A node which recovers from its misbehaving condition is revoked to its normal condition after the time period λ. Conclusion/Recommendations: By simulation results, we show that our combined solution provides more security by increased packet delivery ratio and reduced packet drops. We also shown that our approach has less overhead compared to the existing technique.
Highlights
Mobile Ad-Hoc Network (MANET): A Mobile Ad Hoc Network (MANET) is a collection of dynamic, independent, wireless devices that groups a communications network, devoid of any backing of a permanent infrastructure
The topology of the ad hoc network is mainly interdependent on two factors; the transmission power of the nodes and the Mobile Node location, which are never fixed along the time period (Saad and Zukarnain, 2009)
MANETs have applicability in several areas like in military applications where cadets relaying important data of situational awareness on the battleground, in corporate houses where employees or associates sharing information inside the company premises or in a meeting hall; attendees using wireless gadgets participating in an interactive conference, critical mission programmer for relief matters in any disaster events like large scale mishaps like war or terrorist attacks, natural disasters and all
Summary
Mobile Ad-Hoc Network (MANET): A Mobile Ad Hoc Network (MANET) is a collection of dynamic, independent, wireless devices that groups a communications network, devoid of any backing of a permanent infrastructure. MANETs have applicability in several areas like in military applications where cadets relaying important data of situational awareness on the battleground, in corporate houses where employees or associates sharing information inside the company premises or in a meeting hall; attendees using wireless gadgets participating in an interactive conference, critical mission programmer for relief matters in any disaster events like large scale mishaps like war or terrorist attacks, natural disasters and all They are been used up in private area and home networking, “location-based” services, sensor networks and many more adds up as services based on MANET (Wu et al, 2007). The three major drawback related to the quality of service in MANET are bandwidth limitations, vibrant and non-predictive topology and the limited processing and minimum storage of mobile nodes (Uma and Padmavathi, 2009)
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