Hierarchical Framework For Energy-Efficient And Secure Resource Management In Mobile Ad Hoc Networks
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Date
2010-01
Authors
Seno, Seyed Amin Hosseini
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Abstract
Mobile Ad hoc Networks (MANETs) is a self-configuration inrrastructureless
network, consisting of a number of mobile nodes that connect to each other via
wireless connection and are free to move arbitrarily. MANETs are especially popular
in locations lacking a fixed communication infrastructure, such as natural disaster
sites or battlefields. Moreover, MANETs will be definitely regarded as an important
element of the Fourth Generation (4G) wireless infrastructure.
Resource management that involves Service Discovery and Service
AC:vertisement is one of the most important components of MANETs and is a major
prerequisite for effective usability of the network. Many works have been done on
hierarchical Service Discovery and Service Advertisement including Extended Zone
Routing Protocol; however, they are not optimized enough in terms of overhead,
delay, and throughput. In addition, all mobile devices communicate to each other
through a wireless link without any intermediate infrastructure. In some cases there
might exist malicious users among them. This is the reason why we also need to
consider a secure resource management as the most important and critical issue in
this area. Moreover, the communication in MANET uses messages exchange. A
node acting as a router will consume more energy to transmit and receive routing
packets, service discovery and service advertisement messages. As such, node's
power limitation is another important issue in MANETs.
This thesis attempts to address the above problems by introducing a
framework for resource management in MANET. A Hierarchically Service
Advertisement and Discovery Protocol (HSDAP) is proposed to distribute and
maintain resource's information and to retrieve suitable services on request In
addition, to secure the service discovery and advertisement, Secure Hierarchical
Service Discovery and Advertisement Protocol (SHSDAP) based on the Cluster
Based Distributed Certificate Authority (CB-DCA) is proposed. Finally, the
framework is also equipped with two proposed protocols: (i) Enhanced Gateway
Hierarchical Service Discovery and Advertisement Protocol (EGHSDAP) that is
introduced to increase the network's lifetime and to decrease the energy consumption
of inter cluster gateway nodes. (ii) Energy-Efficient Service Discovery &
Advertisement Protocol (EEHSDAP) which has been proposed to extend the sleep
mode concept to all member nodes in all clusters except active gateway nodes.
A series of experiments using network simulator (NS-2) are conducted to
show the significance and usefulness of the protocols in the proposed framework.
Firstly, the results show that HSDAP provides a better throughput and success
service and less overhead, delay, and consumption compared with other protocols.
Secondly, the SHSDAP provides secure service discovery and advertisement with
minimal overhead and energy consumption. Thirdly, in terms of energy
consumption, the experiments results show that the EGHSDAP decreases the overall
energy consumption of the gateway nodes up to 10% and the EEHSDAP reduces the
energy consumption of the member nodes up to 60% that in turn contributes to
stabilize the network.
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Keywords
Mobile Ad hoc Networks is a self-configuration inrrastructureless network , consisting of a number of mobile nodes that connect to each other via wireless connection