Enhanced Medium Access Control Protocol for Resolving Node Misbehavior in Wireless Networks

In this research, two schemes that enhance the existing misbehavior handling strategy are proposed. The first scheme correlates misbehavior with the traffic characteristics generated by the node deviating from the stipulated protocol. It eliminates the stereotyping of deviation by deriving a mult...

Full description

Saved in:

Bibliographic Details
Main Author:	Nordin, Noorsalwati
Format:	Thesis
Language:	English English
Published:	2007
Subjects:	Wireless sensor networks - Access control. Wireless sensor nodes - Access control.
Online Access:	http://psasir.upm.edu.my/id/eprint/5208/1/FSKTM_2007_8a.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-upm-ir.5208
record_format	uketd_dc
spelling	my-upm-ir.52082013-05-27T07:21:09Z Enhanced Medium Access Control Protocol for Resolving Node Misbehavior in Wireless Networks 2007 Nordin, Noorsalwati In this research, two schemes that enhance the existing misbehavior handling strategy are proposed. The first scheme correlates misbehavior with the traffic characteristics generated by the node deviating from the stipulated protocol. It eliminates the stereotyping of deviation by deriving a multi-scale deviation definition ranging from misbehavior to the underestimation of resource allocation. The scale adaptively enables varying types of misbehavior according to resource requirement. From the performance analysis, it was determined that the scheme is successful in differentiating between misbehavior due to selfishness and under-allocation of resource. In addition, the scheme also enables nodes that are allocated with inadequate resource to achieve higher share of throughput as per its requirement. The second proposed scheme further extends the existing misbehavior handling strategy by detecting excessive allocation of resources. This scheme effectively diminishes the wastage of resources by re-distributing them among the rest of the nodes. The allocation of the resources is carried out on a First- Come-First-Serve basis in order maintain fair characteristics of the 802.11 access mechanism. From the analysis, it was found that when this scheme is employed, the presence of nodes that are over-allocated with resources enables the rest of the nodes to increase their throughput share. The performance analysis of the proposed schemes was conducted with the use of a discrete-event simulator. The simulator was specifically developed for wireless networks incorporating the proposed schemes. It simulates a wireless network comprising non-deviating nodes and nodes that deviate from the MAC protocol due to selfishness, under-allocation and over-allocation of resources. The metrics employed to measure the performance of the proposed algorithms are average throughput, fairness index, channel utilization and throughput ratio. From the analysis of the metrics, it is concluded that with the employment of the proposed scheme, if a node deviates from the protocol and it is allocated with inadequate resources, the scheme will adaptively allow the node to gain the resource as per the degree of its resource under-allocation. On the other hand, if it deviates due to over-allocation, the excess resources will be distributed to other nodes, hence, enabling for the increase of overall network throughput. Wireless sensor networks - Access control. Wireless sensor nodes - Access control. 2007 Thesis http://psasir.upm.edu.my/id/eprint/5208/ http://psasir.upm.edu.my/id/eprint/5208/1/FSKTM_2007_8a.pdf application/pdf en public masters Universiti Putra Malaysia Wireless sensor networks - Access control. Wireless sensor nodes - Access control. Computer Science and Information Technology English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Wireless sensor networks - Access control. Wireless sensor nodes - Access control.
spellingShingle	Wireless sensor networks - Access control. Wireless sensor nodes - Access control. Nordin, Noorsalwati Enhanced Medium Access Control Protocol for Resolving Node Misbehavior in Wireless Networks
description	In this research, two schemes that enhance the existing misbehavior handling strategy are proposed. The first scheme correlates misbehavior with the traffic characteristics generated by the node deviating from the stipulated protocol. It eliminates the stereotyping of deviation by deriving a multi-scale deviation definition ranging from misbehavior to the underestimation of resource allocation. The scale adaptively enables varying types of misbehavior according to resource requirement. From the performance analysis, it was determined that the scheme is successful in differentiating between misbehavior due to selfishness and under-allocation of resource. In addition, the scheme also enables nodes that are allocated with inadequate resource to achieve higher share of throughput as per its requirement. The second proposed scheme further extends the existing misbehavior handling strategy by detecting excessive allocation of resources. This scheme effectively diminishes the wastage of resources by re-distributing them among the rest of the nodes. The allocation of the resources is carried out on a First- Come-First-Serve basis in order maintain fair characteristics of the 802.11 access mechanism. From the analysis, it was found that when this scheme is employed, the presence of nodes that are over-allocated with resources enables the rest of the nodes to increase their throughput share. The performance analysis of the proposed schemes was conducted with the use of a discrete-event simulator. The simulator was specifically developed for wireless networks incorporating the proposed schemes. It simulates a wireless network comprising non-deviating nodes and nodes that deviate from the MAC protocol due to selfishness, under-allocation and over-allocation of resources. The metrics employed to measure the performance of the proposed algorithms are average throughput, fairness index, channel utilization and throughput ratio. From the analysis of the metrics, it is concluded that with the employment of the proposed scheme, if a node deviates from the protocol and it is allocated with inadequate resources, the scheme will adaptively allow the node to gain the resource as per the degree of its resource under-allocation. On the other hand, if it deviates due to over-allocation, the excess resources will be distributed to other nodes, hence, enabling for the increase of overall network throughput.
format	Thesis
qualification_level	Master's degree
author	Nordin, Noorsalwati
author_facet	Nordin, Noorsalwati
author_sort	Nordin, Noorsalwati
title	Enhanced Medium Access Control Protocol for Resolving Node Misbehavior in Wireless Networks
title_short	Enhanced Medium Access Control Protocol for Resolving Node Misbehavior in Wireless Networks
title_full	Enhanced Medium Access Control Protocol for Resolving Node Misbehavior in Wireless Networks
title_fullStr	Enhanced Medium Access Control Protocol for Resolving Node Misbehavior in Wireless Networks
title_full_unstemmed	Enhanced Medium Access Control Protocol for Resolving Node Misbehavior in Wireless Networks
title_sort	enhanced medium access control protocol for resolving node misbehavior in wireless networks
granting_institution	Universiti Putra Malaysia
granting_department	Computer Science and Information Technology
publishDate	2007
url	http://psasir.upm.edu.my/id/eprint/5208/1/FSKTM_2007_8a.pdf
_version_	1747810373634883584

Enhanced Medium Access Control Protocol for Resolving Node Misbehavior in Wireless Networks

Similar Items