Announcement
– MS Thesis Defense
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Mr. Abdulsalam Salem Ba Sabaa, COE MS Student,
will defend his MS Thesis entitled “A Novel Intrusion Detection
System for Collaborative Attack in Mobile Ad-hoc Networks”, on Wednesday,
March 12, 2014 at 12:00 noon - 01:00 p.m.. in Bldg. 24, Room # 158. Dr.
Tarek Sheltami, Asso. Prof, COE Department, is his Thesis Advisor.
All faculty, researchers and students are cordially invited to
attend.
Abstract:
Wireless networking is an emerging
technology that allows users to access information and services anywhere
regardless of their geographic location. Mobile Ad hoc Networks (MANETs)
is one of the most significant technologies among various wireless
communication technologies. In MANETs, all nodes are mobile and can be
connected dynamically using wireless link in a random manner. All nodes
in MANETs behave as routers and take part in discovery and maintenance of
routes to other nodes in the network. They communicate directly
with each other only if they are within the communication range. However, they
rely on each other and forward packets when they are out of communication
ranges. MANETs are infrastructure-less network and
have self-configuring features that make them suitable for many critical
applications, such as military and emergency applications. However, these
features make them also vulnerable for all types of passive and active attacks
because of open environment, the rapidly changing topology and the
decentralization of nodes in MANETs. In addition, most of the proposed MANET
protocols assume that all nodes in the network are cooperative, and do not
address security issues in MANETs. Since most of the proposed existing
intrusion detection systems (IDSs) of MANETs are based on Watchdog technique, we study
the behavior of the Watchdog technique, and propose a solution for its three
significant problems, namely: receiver collision, limited transmission power
and collaborative attacks (collusion attack), especially when there are two
consecutive collaborative malicious nodes in a path. To demonstrate the
feasibility of our proposed system, it is implemented and tested under various
scenarios using NS-2 simulator. To validate the results achieved, we compared
our results with the results of AACK IDS technique.
COE Department Chairman’s Office