Cong Hoan Vu; Adeyinka Soneye MCS-2009:4, pp. 41. COM/School of Computing, 2009.
A Mobile Ad hoc Network (MANET) consists of a
set of communicating wireless mobile nodes or devices
that do not have any form of fixed infrastructure or
centralized authority. The security in MANET has
become a significant and active topic within the
research community. This is because of high demand in
sharing streaming video and audio in various
applications, one MANET could be setup quickly to
facilitate communications in a hostile environment such
as battlefield or emergency situation likes disaster
rescue operation. In spite of the several attacks aimed at
specific nodes in MANET that have been uncovered,
some attacks involving multiple nodes still receive little
attention. A reason behind this is because people make
use of security mechanisms applicable to wired
networks in MANET and overlook the security
measures that apply to MANET. Furthermore, it may
also have to do with the fact that no survey or taxonomy
has been done to clarify the characteristics of different
multiple node attacks. This thesis addresses the
aforementioned gap by providing a proper definition
and categorization of collaborative attacks against
MANET from the various multiple node attacks found.
Simulation using OPNET Modeler was used to
investigate the performance impact of a collaborative
blackhole attack on a mobile ad hoc network. Network
throughput, packet delivery ratio and end-to-end delay
are the performance metrics used in our result analysis.
Based on the analyses of performance metrics
made, we realised the consequences of a collaborative
blackhole attack on MANET. In order to prevent or
reduce these consequences, we also discuss a number of
mitigation plans to counteract the different kinds of
Keywords: MANET, Collaborative Attacks, Multiple
Cong Hoan Vu
Address: Folkparksvägen 19:08, 372 40 Ronneby, Sweden.
Address: Polhemsgatan 27B, LGH 30, 371 40 Karlskrona, Sweden.