Key management in wireless sensor networks with inter-network sensor roaming
2008 33rd IEEE Conference on Local Computer Networks (LCN)
Wireless Sensor Networks (WSNs) have received considerable attention in recent years and opened up new possibilities for various commercial and industrial applications. A WSN consists of a number of sensor nodes geographically dispersed across a sensing area along with a few controllers termed sinks or base stations (BSs). A sensor node typically contains a battery pack with limited power, a sensing unit, a processing unit, a storage unit, and a wireless transceiver. Base stations are, in
... tions are, in general, considered to have more processing power and enough resources to manage a WSN. Base stations can also be connected to the entities outside the WSN such as other sensor networks, remote data centers, and the Internet. Due to the low-cost, small form factors, and easy deployability of the sensors, WSNs offer an ideal solution for applications that require periodic data collection, such as monitoring and surveillance. On the other hand, the broadcast nature of the wireless medium and limited resource availability in the sensors raise a serious concern regarding security in WSNs. It is a significant challenge to provide sufficient security to the sensory data with the limited resources available in a small, battery-powered, wireless sensor.