Green Super computing Comes of Age
Energy-efficient (green) supercomputing has traditionally been viewed as passé, even to the point of public ridicule. But today, it’s finally coming into vogue. This article describes the authors’ view of this evolution. In 2002 the Japanese Earth Simulator supercomputer shattered US domination of high-end computing (HEC) with a 400 percent increase in computational speed, as […]
Replication Mechanism in Cognitive Mobile Ad Hoc Networks
Dynamic trust models and replication approaches that adequately address the security needs of wireless cognitive ad hoc networks (MANET) have proven quite difficult to develop. The inherent decentralized nature of ad hoc networks and their collaborative services give rise to a series of vulnerabilities that can be exploited by malicious entities. This problem is exacerbated […]
Trust Based Security Scheme for RREQ Flooding Attack in MANET
Mobile ad hoc are gaining popularity because of availability of low cost mobile devices and its ability to provide instant wireless networking capabilities where implementation of wired network is not possible or costly. MANETs are vulnerable to various types of attack because of its features like continuous changing topology, resource constraints and unavailability of any […]