A Novel Approach for Probabilistic Dual Source Location Privacy Protection Scheme in Wireless Sensor Networks
Christina Ranjitham M, Angela Jennifa Sujana J, Mariya Rasathi Jeya A, Santhana Selvi S, Ms.Mariammal M · Journal of Emerging Technologies and Innovative Research · 2020
Wireless Sensor Networks (WSNs) have been widely deployed to monitor valuable objects. In these applications, the sensor node senses the existence of objects and transmitting data packets to the sink node (SN) in a multi hop fashion. The SN is a powerful node with high performance and is used to collect all the information sensed by the sensor nodes. Due to the open nature of the wireless medium, it is easy for an adversary to trace back along the routing path of the packets and get the location of the source node. Once adversaries have got the source node location, they can capture the monitored targets. In this project, we focus on the source location privacy problem in WSNs, a hot research topic in security, and propose a novel approach of two new cluster-based source location privacy protection schemes in WSNs called cluster-based dual phantom node source location privacy protection scheme (DPS) and probabilistic source location privacy protection scheme (PSLP) for WSNs. A more powerful adversary, which can use Hidden Markov Model (HMM) to estimate the state of the source, is considered in this study. To cope with this type of adversary dual phantom nodes and fake sources, which are responsible to mimic the behavior of the source, are utilized to diversify the routing path. Then, the weight of each node is calculated as criteria to select the next-hop candidate. In addition, two transmission modes are designed to transmit real packets. We evaluate our schemes through theoretical analysis and experiments. Experimental results show that compared with other schemes, our proposed schemes are more efficient and achieves higher Security, as well as keeping lower total energy consumption. Our proposed schemes can protect the location privacy of the source node even in resource-constrained wireless network environments.