Maximizing Lifetime through Phantom Node for Privacy Preservation in WSN

One of the major challenges in real-time event-monitoring applications such as military surveillance or monitoring of endangered species of Wireless Sensor Network (WSN), is that of context privacy in terms of location of source node. When a source node senses and forwards a packet to the target, adversaries can eavesdrop on network and trace source node from base station. The concept of introducing phantom node is to act as intermediate nodes between actual sources and sink, so that the privacy of source node is preserved. Phantom nodes can thus help in achieving privacy. But while trying to achieve this, it is also essential to ensure that the lifetime of sensors are not affected due to resource constraints in the sensor nodes. This paper attempts to use an energy efficient algorithm for establishing phantom node so as to improve network lifetime of sensors while achieving source location privacy. Keywords— WSN, energy efficient algorithms, privacy