Wireless sensor networks have been widely used in many surveillance applications. Due to the importance of sensor nodes in such applications, certain level of protection needs to b...
—In this paper we study the resource allocation in OFDM-based cognitive radio (CR) networks, under the consideration of many practical limitations such as imperfect spectrum sens...
In many real applications, for example those with frequent and irregular communication patterns or those using large messages, network contention and contention for message proces...
Key management is the cornerstone for secure communication in sensor networks. Researchers have recently developed many techniques to setup pairwise keys between sensor nodes. How...
The ability to incorporate low-power, wireless communication into embedded devices gives rise to a new genre of embedded software that is distributed, dynamic, and adaptive. This p...
David E. Culler, Jason L. Hill, Philip Buonadonna,...