In a wireless sensor network, concealing the location of the sink is critical. Location of the sink can be revealed (or at least guessed with a high probability of success) through traffic analysis. In this paper, we proposed an energy efficient technique for concealing sink location named EESLP (Energy Efficient Sink Location Privacy) scheme. Here we proposed an approach, in which we are concealing the sink location in such a way so that node energy utilization while securing sink in network can be minimum, to defending sink’s location privacy and identity when the network is subjected to multiple traffic analysis attack. EESLP designs the network area of coverage with multiple spots generating fake message traffic for fake sink location creation that resembles the traffic behavior that is expected to be observed in the area where the sink is located. To achieve this we select some sensors away from the actual sink location which act as fake sinks by generating dummy or fake packet. The simulation results prove that EESLP can improve network life time and QOS (congestion, throughput, packet delivery rate) of sensor network while protecting sinks Location privacy.
Anti-traffic analysis attack for location privacy in WSNs