期刊名称：International Journal of Advanced Research In Computer Science and Software Engineering
印刷版ISSN：2277-6451
电子版ISSN：2277-128X
出版年度：2012
卷号：2
期号：11
出版社：S.S. Mishra
摘要：Security measures have been proposed to identify, isolate, mitigate and prevent the Denial of Service attacks in Wireless Sensor Networks. The wireless networks are preferred over the traditional approaches for its faster accessibility, connectivity, and compatibility among the extended variant set of users.Yet the need of authenticating the frames in wireless networks has been ignored for better transfer rate. This shortens the limitations of the existing wired networks and global applicability promoted the implementation. Wireless Sensor Networks are subjected to various attacks from jammers of all nature. The detection strategies sometimes fail to analyze and report the presence of a jammer in a network. Detection of the jammers is quite easy in case of external locality since they possess a significant pattern of attack and route to attack the victim. On the other hand, being unconscious of the detection mechanisms, the external jammers always provide a trace to be detected. Being an internal attacker, the node would have adequate understanding over the present defensive mechanism and additional tools to masquerade their identity. In view of protecting the packets against the jamming attacks, various methodologies are implemented for disguising and secrete the message packets from the jammers. Concealing the packets enables a safe transmission between intended nodes even in the existence of an active jammer.
