Novel Approach for Enhancing the Performance of MANETs Using Reactive Routing Protocols

Mrs. Bharathi M; Dr. Mydhili K Nair

MANET is a type of wireless adhoc network and is a self configuring network of mobile nodes connected by wireless links. MANETs are suited for emergency situations as they facilitate fully distributed, self-maintainable dynamic topology networks that applications are limited as its features impart high applicability, yet they manifest unreliability. Another cause of unreliability is the mutual intrinsic trust during communication. Security is a major challenge for these networks due to their features of open medium, dynamically changing topologies. The Black Hole attack is a well known security threat of exploiting the trustworthiness. Black hole attack is one of the security threats in which attacker node drops or modify the packets intentionally hence decreasing reliability. In black hole attack an adversary captures a set of nodes in the network to block the packets they receive instead of forwarding them towards the destination. As a result any information that enters the black hole region is captured and does not reach the destination. Due to this attack, high end to end delay and throughput is degraded in the network. In this paper is to detect and prevent the effects of Black hole attack in MANET using Ad-Hoc on Demand Distance Vector (AODV) and analyse MANETs using single and cooperative Black Hole attack and avoid it by diverting traffic from the Black Hole. The proposed method is based on sending packet confirmation that are verified by the destination to check for Black Hole presence in the proposed AODV and encrypt the data before sending it to destination. The proposed algorithm was then simulated in static node environment and results are observed that the packet delivery ratio is better than the conventional AODV.

Select Volume / Issues:

• Volume 7,Issue 1, Jan. 2016

Year:

2016

Type of Publication:

Article

Keywords:

Black Hole; AODV; MANETs; Security; Reliability; Routing

Journal:

IJECCE

Volume:

7

Number:

1

Pages:

12-15

Month:

January

ISSN:

2249-071X