Learn More
Inbo Sim1 and Yong-Hoon Lee2 1 Department of Mathematics, University of Ulsan, Ulsan 680-749, South Korea 2 Department of Mathematics, Pusan National University, Pusan 609-735, South Korea Correspondence should be addressed to Yong-Hoon Lee, yhlee@pusan.ac.kr Received 8 October 2009; Accepted 24 November 2009 Academic Editor: Yeol Je Cho Copyright q 2010 I.(More)
In wireless sensor networks, clustering, a method of grouping sensor nodes, has numerous advantages. It can support network scalability, reduce the size of the routing table stored at the individual node and prolong the battery life of the individual sensors and the network lifetime, etc. In this paper, to extend network lifetime and minimize additional(More)
In large scale sensor networks, scalability and robustness are very important, and sensor nodes are also highly power constrained. Clustering, a method of grouping sensor nodes, can meet these requirements. Sensor networks also need to support fast delivery of important and urgent data. The purpose of this paper is to analyze the effects of cluster size on(More)
The world around us will soon be interconnected as a pervasive network of intelligent devices. Through this, people will be able to get online and have almost continuous access to their preferred services. WSN (Wireless Sensor Networks) is the emerging technology expected to prevail in the pervasive computing environment of the future. Geographic routing(More)
We show the existence of two nontrivial nonnegative solutions and infinitely many solutions for degenerate p(x)-Laplace equations involving concaveconvex type nonlinearities with two parameters. By investigating the order of concave and convex terms and using a variational method, we determine the existence according to the range of each parameter. Some(More)
  • 1