Comprehensive Study of Selective Forwarding Attack in Wireless Sensor Networks

Abstract

- In present scenario, the fastest and cheapest way of communicating worldwide is via networks. Wireless Sensor Networks (WSNs) have become extensive part of many areas like traffic surveillance, defense, asset tracking, healthcares, structural monitoring of building and bridges and environmental monitoring of air, water and soil. The emergence of WSNs in today’s technological world has lead to the need of secured and safeguarded transmission of data over networks. WSNs have issues like low memory and limited battery availability, so conventional security establishments are not effective here. A number of attacks are possible over WSNs like black hole, wormhole and selective forwarding attack. Selective forwarding attack is a special case of black hole attack where compromised nodes drop packets selectively. This leads to degradation of network performance. In this paper we will review some important attacks over WSNs with possible ways to detect and defend selective forwarding attack