Enhancing Sensor Network Security by Reducing Radio-Wave Leakage

Recently, the use of sensor networks has become common in various application areas involving military affairs, environmental protection, medical care, agriculture, and so forth. As a result, it becomes important to pay attention to the security issues on sensor networks so as to avoid information leakages. This paper proposes a routing-based approach against the radio-wave signal eavesdropping to enhance security of sensor networks. This is achieved by constructing a virtual network backbone for relaying packets securely. Simulation experimental results have confirmed the advantage of the new routing algorithm over existing approaches.