This paper presents the research work addressing optimal secure and protected Multicasting in wired and wireless Hierarchical Sensor Networks (HSN). The multicast nodes in a hierarchical set up are associated with” Importance values” that are normalized into probabilities. The security constraint imposed is associated with the concept of “Prefix-free paths” in the associated graph. The optimali...

ABSTRACT Single-rate multicasting may yield low utilization of the network resources when a subset of the receivers creates a bottleneck for the whole multicast group. Thus, practical multirate multicasting strategies are required to allow users with better channels to achieve maximum performance. While earlier studies have investigated such mechanisms using routing strategies over fixed trees,...

Multicasting is the transmission of datagrams to a group of hosts identified by a single destination address, providing simple and efficient communication for group-oriented applications. Many applications currently envisioned for mobile ad hoc networks require multicasting. Several multicasting protocols have been proposed for mobile ad hoc networks, one of the most popular being the On Demand...

A Mobile ad-hoc network is an autonomous system of mobile nodes connected by wireless links; each node operates as an end system and a router for all other nodes in the network. In each communication operation we use multicasting technique. In multicasting technique signified for group communication that supports the dissemination of information from a sender to all the receivers in a group whi...

There is increased deployment of portable IP-enabled devices and group content distribution applications on Wireless Mesh Networks (WMNs). This surge is facilitated by its relative low cost of installation and as such is an attractive option in environments lacking existing communication infrastructure and/or in times of natural emergencies. The WMNs is equally capable of providing high bandwid...

Explicit routing in MPLS is utilized in traffic engineering to maximize the operational network performance and to provide Quality of Service (QoS). However, difficulties arise while integrating native IP multicasting with MPLS traffic engineering, such as point-to-multipoint or multipoint-to-multipoint LSPs layout design and traffic aggregation. In this paper, we have proposed an edge router m...

This paper introduces the application of IP multicasting for enhancing of software-only DSM systems and, at the same time, sim-pliication of the programming model by ooering a simple memory consistency model. The described algorithm is the foundation of a runtime system implemented as lesystems for the Windows NT and FreeBSD operating systems. 1 Introduction Software distributed shared memory (...