NS-2 implementation and comparison of ENABLE and HBQ protocol of access control scheme based on ECC for WSN security

Wireless sensor network (WSN) is dense cluster of sensor nodes that are spatilly arranged. WSN applications such as mission-critical military, homeland security, critical health applicsation where user´s access security is necessary which provided by access control scheme for different access rights. Due to privacy reason or security clearance user´s access restriction may be enforced with different access rights. Therefore, there is need of introduction of a promising access control scheme based on cryptography technique. In this paper different algorithms are studied amongst HBQ and ENABLE are implemented on NS-2. It shows that an energy-efficient access control scheme based on a symmetric cryptography technique i.e. ECC can be used to overcome limitations of security and more importantly to provide high energy-efficiency. Analysis and simulation concludes and proves that ENABLE scheme overcomes the security problems and has better energy-efficiency over HBQ.