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The route recovery algorithm is a crucial part of an ad hoc routing protocol. Designing an efficient and fast route recovery mechanism scheme without incurring extra overheads or delays to repair the broken link is a desirable goal for any routing protocol. The route recovery algorithm in reactive routing protocols like AODV occurs only after a link failure is detected. However, we propose a new route...
Utilising multiple channels can increase the wireless ad hoc network capacity. Receiver Directed Transmission protocol (RDT) is designed to provide multichannel access using a single radio interface. RDT introduces a clever approach to support channel assignment and negotiation without relying on a control channel or time synchronisation. Protocols based on the RDT scheme normally use an extra radio...
MANET routing protocols are designed based on the assumption that all nodes cooperate without maliciously disrupting the operation of the routing protocol. AODV is a reactive MANET routing protocol that is vulnerable to a dramatic collapse of network performance in the presence of blackhole attack. The paper introduces a new concept of Self-Protocol Trustiness (SPT) in which detecting a malicious...
MANET routing protocols are designed based on the assumption that all nodes cooperate without maliciously disrupting the operation of the routing protocol. A large number of attack types of varying severity are threatening MANET. Dynamic Source Routing (DSR) is a well-known reactive MANET routing protocol that does not support security of routing messages. In this paper, we study the performance of...
MANET routing protocols have many vulnerabilities that may be exploited by malicious nodes to disrupt the normal routing behavior. In this paper, we present a vulnerability analysis of AODV. We simulate four routing attacks to analyse their impacts on AODV protocol using NS-2 network simulator. These attacks are blackhole, grayhole, selfish and flooding attacks. The blackhole and flooding attacks...
MANET routing protocols have many vulnerabilities that may be exploited by malicious nodes to disrupt the normal routing behavior. In this paper, we present a vulnerability analysis of AODV. We simulate four routing attacks to analyse their impacts on AODV protocol using NS-2 network simulator. These attacks are blackhole, grayhole, selfish and flooding attacks. The blackhole and flooding attacks...
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