Cost is one of the key challenges facing the deployment of wireless networks. Though 802.11-based networks have shown that costly, licensed spectrum is not always necessary, the c...
In a set of distributed wireless networks, such as globally distributed cellular systems, different networks could be administered by different operators. Mobile devices subscribe...
This paper presents a distributed user authentication scheme in wireless sensor networks. Our scheme is based on the self-certified keys cryptosystem (SCK), and we have modified i...
We present a sensor network testbed that monitors a hallway. It consists of 120 load sensors and 29 passive infrared sensors (PIRs), connected to 30 wireless sensor nodes. There ar...
WLAN is one of the most successful applications of wireless communications in daily life because of low cost and ease of deployment. The enabling technique for this success is the ...