http://hdl.handle.net/123456789/150 Sat, 25 May 2013 05:20:54 GMT 2013-05-25T05:20:54Z http://hdl.handle.net/123456789/1516 Title: Energy Aware Cluster-based Multihop Routing Protocol for Sensor Networks Authors: Santhosh Kumar, G; Poulose Jacob, K; Sitara, A Abstract: Clustering combined with multihop communication is a promising solution to cope with the energy requirements of large scale Wireless Sensor Networks. In this work, a new cluster based routing protocol referred to as Energy Aware Cluster-based Multihop (EACM) Routing Protocol is introduced, with multihop communication between cluster heads for transmitting messages to the base station and direct communication within clusters. We propose EACM with both static and dynamic clustering. The network is partitioned into near optimal load balanced clusters by using a voting technique, which ensures that the suitability of a node to become a cluster head is determined by all its neighbors. Results show that the new protocol performs better than LEACH on network lifetime and energy dissipation Tue, 23 Nov 2010 18:30:00 GMT http://hdl.handle.net/123456789/1516 2010-11-23T18:30:00Z http://hdl.handle.net/123456789/289 Title: Squeezed Coherent State Representation of Scalar Field and Particle Production in the Early Universe Authors: Santhosh Kumar, G; Kuriakose, V C Abstract: The quantum field theory of a scalar field in curved space-time is studied using the squeezed coherent state representation. In this representation the expectation values of the stress-energy tensor of the scalar field is calculated. The present calculation can account for the production of particles in the early universe. Mon, 21 Jun 2010 18:30:00 GMT http://hdl.handle.net/123456789/289 2010-06-21T18:30:00Z