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 TitleDate AddedCompany
whitepaper Wireless Video Multicast in Tactical Environments2009-10-07 Institute of Electrical and Electronics Engineers
  There has been a tremendous increase in demand for real-time video applications over military networks. Multicast provides an efficient solution for simultaneous content delivery to a group of users. It is especially valuable for military applications, as it saves network resources by sharing the data streams across receivers. Even with ever increasing channel bandwidth and computation power, efficiently multicasting video over the tactical edge is still challenging due to factors such as higher packet loss ratio, bandwidth variations and the heterogeneity of the users. This paper explores the use of omni-directional relays to improve the performance of wireless video multicast in tactical environments. The paper focuses on assessing the trade-off between total relay energy, coverage area and video quality.

Tags: Mobile and Wireless		   
whitepaper A Performance Study of Reactive Multicast Routing Protocols in Virtual Class Room Using Mobile Ad Hoc Network2009-09-29 Science Publications
  A great deal of excitement has recently propelled Mobile Learning to the forefront of educational technology. The exponential growth of mobile technology in the recent years, increase in the availability of high-bandwidth network, advances in wireless technologies and popularity of handheld devices, have opened up new accessibility opportunities for education. Approach: Virtual class room using MANET had been proposed to enhance the m-Learning opportunities in a residential institution. Results: This environment transferred both large and small volume of data to the particular group members. Generally multicasting supports group oriented computing. Such a group oriented service required a suitable multicast routing protocol. Two standard multicast routing protocols were implemented and analyzed for tree (MAODV) and mesh (ODMRP) based approach.

Tags: Mobile and Wireless		   
whitepaper Enabling End-to-end IP Visual Communication by Securely Traversing Firewalls and NATs with TANDBERG Expressway2009-06-17 Tandberg
  TANDBERG's Expressway is the right solution for secure firewall and network address translation traversal. While there are a few solutions available, many are expensive, not secure, not available everywhere, restricting of feature sets, not ISP-friendly and not scalable.This paper identifies alternative solutions and compares them to the TANDBERG Expressway solution for firewall traversal.

Tags: Network Technologies, Intrusion - Tampering, Security Administration		   
whitepaper A Longitudinal Technology Trial - TVPrintCast2009-04-21 Hewlett-Packard (HP)
  While the technology prototype was evaluated on the following parameters including Performance measures, Error free data transmission, Nature of errors, down time etc., ease of use and ability to problem shoot with the technology were the technical research questions, the paper also focused on other research questions to answer as a part of the technology experience. These were to do with the end user experience.   
whitepaper Emerging Multicast VPN Applications: Drivers for Scalable Next-Generation Multicast VPN2009-03-01 Juniper Networks
  Several emerging multicast applications require virtualization to support service delivery, traffic separation, and new business models. A more scalable and flexible approach to implementing Multicast VPN (MVPN) is being deployed in service provider, financial, and enterprise networks to effectively support these emerging applications, while achieving greater economies of scale.

Tags: Network Technologies		   
whitepaper DINloop Based Inter-Domain Multicast With MPLS2009-02-03 National University of Singapore
  To overcome the existing scalability problems, DINloop (Data-In-Network loop) based multicast with MPLS (multiprotocol label switching) is proposed to optimize inter-domain multicast. In this approach, multiple DIN Nodes in the core network form the DINloop using MPLS so that multiple multicast sessions share a single DINloop. A label stack method is adopted to use fewer labels and Label Switch Paths (LSPs) are established between DIN Nodes to create the DINloop. Packet Processing Module analyzes the coming multicast packet and MPLS Manager assigns a label stack to it. Simulations show that DINloop based multicast uses the least message load needed to form the multicast architecture.

Tags: Network Technologies		   
whitepaper A DINloop-Based Inter-Domain Multicast Using MPLS2009-02-03 Institute for Infocomm Research
  To overcome scalability and control overhead problems existing in inter-domain multicast, DINloop (Data-In-Network loop) based multicast with MPLS is proposed. DINloop is a special logical path formed using MPLS Label Switched Paths and it consists of multiple DIN Nodes which are core routers that connect to each intra-domain. DINloop is used to manage inter-domain multicast group membership. Facilitated by the DINloop, multiple DIN Nodes in the core network easily form a Steiner tree for multicast traffic. Furthermore, traffic for different multicast groups sharing the same path are aggregated through a label stack. Simulations demonstrate that DINloop-based multicast results in less message load needed to form the multicast structure.

Tags: Network Technologies		   
whitepaper A New Approach to Construct Multicast Trees in MPLS Networks2009-01-01 French National Institute for Research in Computer Science and Control
  This paper presents a new approach to construct multicast trees in MPLS networks. This approach utilizes MPLS LSPs between multicast tree branching node routers in order to reduce forwarding states and enhance scalability. In authors approach only routers that are acting as multicast tree branching node for a group need to keep forwarding state for that group. All other non-branching node routers simply forward data packets over traffic engineered unicast routes using MPLS LSPs. This paper briefly discuss MPLS, the multicast scalability problem, merging the two technologies, related works and different techniques for forwarding state reduction.

Tags: LAN - WAN		   
whitepaper Ad Hoc Wireless Multicast With Mobility Prediction2009-01-01 University of California
  An ad hoc wireless network is an infrastructureless network composed of mobile hosts. The primary concerns in ad hoc networks are bandwidth limitations and unpredictable topology changes. Thus, efficient utilization of routing packets and immediate recovery of route breaks are critical in routing and multicasting protocols. A multicast scheme, On-Demand Multicast Routing Protocol (ODMRP), has been recently proposed for mobile ad hoc networks. ODMRP is a reactive (on-demand) protocol that delivers packets to destinations on a mesh topology using scoped flooding of data. A number of enhancements can be applied to improve the performance of ODMRP. This paper proposes a mobility prediction scheme to help select stable routes and to perform rerouting in anticipation of topology changes.

Tags: Mobile and Wireless		   
whitepaper GKMPAN: An Efficient Group Rekeying Scheme for Secure Multicast in Ad-Hoc Networks2009-01-01 University of Texas
  This paper presents GKMPAN, an efficient and scalable group rekeying protocol for secure multicast in ad hoc networks. Their protocol exploits the property of ad hoc networks that each member of a group is both a host and a router, and distributes the group key to member nodes via a secure hop-by-hop propagation scheme. A probabilistic scheme based on pre-deployed symmetric keys is used for implementing secure channels between members for group key distribution. GKMPAN also includes a novel distributed scheme for efficiently updating the pre-deployed keys.

Tags: Security Administration, Network Technologies