A Network Performance Study for Selfish MANET Environment

Autor: Hsin-Lin Chiu, 邱心伶
Rok vydání: 2012
Druh dokumentu: 學位論文 ; thesis
Popis: 100
A MANET is a self-organizing and self-configuring network without the need for any existing network infrastructure or centralized administration. A MANET is a collection of mobile nodes with limited resources such as battery power. Limited resources make the nodes appear selfish behavior. Selfish nodes want to save their resources for their own usage, so they are unwilling to spend resources to forward data packets. In consequence, selfish nodes will reduce the total packet delivery ratio in a MANET. Every node may appear selfish behaviors in real world environment. In the previous published literature, the general assumption is that only a few selfish nodes in a MANET. Selfish nodes usually are viewed as malicious nodes, and detection mechanisms are developed to identify and isolate node with malicious behaviors. In this study, the author argues that selfishness is not a malicious behavior. Actually, selfishness is a natural behavior for all nodes in the MANET. Thus, this study is to measure and evaluate the possible effects in the real world where all mobile devices are selfish nodes and proposes a friendship strategy for each selfish node is developed to observe and evaluate performance improvement in a MANET.
Databáze: Networked Digital Library of Theses & Dissertations