This paper considers a secure multigroup multicast multiple-input single-output (MISO) communication system aided by an intelligent reflecting surface (IRS). Specifically, we aim to minimize the transmit power at Alice via jointly optimizing beamformer, artificial noise (AN) vector and phase shifts IRS subject secrecy rate constraints as well unit modulus of shifts. To tackle optimization probl...

In most of the MAC protocols for wireless ad hoc networks today, no reliable multicast service is provided. For example, IEEE 802.11[5], the most widely used MAC protocol at present, only supports reliable unicast with the RTS/CTS/DATA/ACK scheme; while for broadcast or multicast frames1, it simply performs one transmission of them without any reliability guarantee. In this report, we propose a...

In network multimedia applications, such as multiparty teleconferencing, users often need to send the same information to several (but not necessarily all) other users. To manage such one-to-many or many-to-many communication e ciently in wide-area internetworks, it is imperative to support and perform multicast routing. Multicast routing sends a single copy of a message from a source to multip...

Label Assignment and Failure Recovery Approaches for IP Multicast Communication in MPLS Networks Omar Qasem Banimelhem, Ph.D. Concordia University, 2005 Multiprotocol Label Switching (MPLS) is an Internet Engineering Task Force (IETF) framework that provides for the efficient designation, routing, forwarding, and switching of traffic flows through the network. MPLS is widely used for multicast ...

In mobile ad-hoc network, some multi -channel MAC protocols utilize multiple channels to reduce the collision of wireless transmission and thus get high throughput. These multi channel MAC protocols aim at improving the performance of unicast communication, and multicast data are generally transmitted through broadcast. So multicast can’t benefit from the multi -channel technique. This paper pr...

EEcient implementation of multicast communication is critical to the performance of message-based scalable parallel computers and switch-based high speed networks. This paper deals with address issues occurring in the message header for the transmission of multicast messages. Multi-address encoding is becoming critical to system performance as the scale of networks is getting larger and the dem...

Mobile ad hoc networks are becoming an important concept of modern communication technologies and services. It provides some advantages to this communication world such as self-organizing and decentralization. In this paper, we are going to design a cluster-based multi source multicast routing protocol with new cluster head election, path construction and maintenance techniques. The main object...

This paper presents eecient multicasting with reduced contention on irregular networks with switch-based wormhole interconnection and unicast message passing. First, it is proved that for an arbitrary irregular network with a typical deadlock-free, adaptive routing, it may not be possible to create an ordered list of nodes to implement an arbitrary multicast in a contention-free manner with min...

Multicast group communication over mobile ad hoc networks has various challenges related to secure data transmission. In order to achieve this goal, there is a need to authenticate the group member as well as it is essential to protect the application data, routing information, and other network resources etc. Multicast-AODV (MAODV) is the extension of an AODV protocol, and there are several is...