부산대학교 도서관

Wireless Sensor Networks (WSNs) is collection of large number of sensor nodes which are of limited capabilities, to collect sensitive information. With the advancement of this technology, one of the major concerns these days is of security. There are so many attacks possible on WSN, in Distributed-Denial of Service (DDOS) attacks, malicious nodes adapts many attacks such as flooding attack, black hole attack and warm hole attack to halt the overall functioning of network The risks are even more when we talk about military and industrial applications. Furthermore in WSN there are so many constrains like limited battery power, low capabilities of nodes etc. To present a security model that will consider these constraints and provide security is a major challenge these days. There are many mechanisms which are proposed by researchers to detect or defend from this DDOS attack In this paper we will review these approaches on basis of various parameters.