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- Interfacing the music, NEC seeks patent for VoIP multipacket communications
- A couple of weeks ago, I updated you on some newly published U.S. Patent and Trademark applications.I've just noticed a new one. NEC has applied for a multicast packet communications method for VoIP systems."In response to a request from the client," NEC notes in its patent application abstract, "the VoIP...
- Blog posts 2004-12-21
Additional Resources
- A Scalable Feedback Suppression Mechanism for Multicast Service in Wireless TDMA Network
- Hybrid ARQ is deployed in error prone wireless network to provide reliable unicast transmission with the positive or negative acknowledgement report. However, the feedback implosion is a challenging problem for multicast service, wherein multiple receivers send out feedback in a short period of interval. The traditional representative-based or timer-based feedback...
- White papers 2009-05-30
- Scalable Feedback Suppression Mechanism for Multicast Service in Wireless TDMA Network
- Hybrid ARQ is deployed in error prone wireless network to provide reliable unicast transmission with the positive or negative acknowledgement report. However, the feedback implosion is a challenging problem for multicast service, wherein multiple receivers send out feedback in a short period of interval. The traditional representative-based or timer-based feedback...
- White papers 2009-05-30
- DINloop Based Inter-Domain Multicast With MPLS
- 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...
- White papers 2009-02-03
- Multicast Topology Inference From Measured End-to-End Loss
- The use of multicast inference on end-to-end measurement has recently been proposed as a means to infer network internal characteristics such as packet link loss rate and delay. This paper proposes three types of algorithm that use loss measurements to infer the underlying multicast topology: a grouping estimator that exploits...
- White papers 2009-01-01
- Multicast - What Is It?
- When multiple receivers are required to get the same data at approximately the same time, multicast is a more efficient way of delivering data than unicast. A unicast packet has a single source IP address and a single destination IP address. A multicast packet has a single source IP,...
- White papers 2008-10-03
- Painful lesson in OLPC mesh networking for Mongolians
- Painful lesson in OLPC mesh networking for MongoliansYou all Jump around too much!!The biggest problem I see with the Mesh is that a hop basically jumps around from computer to computer looking for a way back home. That is a lot of jumping. Then you have the fact...
- Discussion threads 2008-01-30
- Scalability and Robustness of Virtual Multicast for Synchronous Multimedia Distribution
- A simple UDP packet reflector for virtual multicast multimedia transfer is extended to form a distributed system of active elements that solves the scalability problem of otherwise centralistic approach. The robustness of such virtual multicast delivery system is also discussed and shown to be better than the native multicast can...
- White papers 2008-01-01
- Load Balancing for Reliable Multicast
- New applications emerge along with the rapid growth of the Internet. Many functionalities other than packet forwarding are being proposed to be added into routers for supporting those new applications. Those functionalities significantly improve the performances of the applications, but they incur overheads on routers at the same time. It...
- White papers 2008-01-01
- BSCI - Building Scalable Cisco Internetworks v3.0
- View Available Dates and LocationsIn this comprehensive 5-day, Authorized Cisco course, you will develop an advanced set of skills to help you optimize the configuration and deployment of a Cisco router-based internetwork. Learn the complex concepts and commands necessary to configure Cisco routers for...
- Training 2008-01-01
- Raptor codes will defeat rapacious telcos
- Raptor codes will defeat rapacious telcosYour assumption on saving in retransmits is incorrect...Most video streaming in this world uses UDP. While FEC may be able to help video quality - it is not going to help reduce bandwidth use because udp never retransmits dropped packets.don't see the real innovationI...
- Discussion threads 2007-11-20
- Raptor codes will defeat rapacious telcos
- Watching a stuttering YouTube video is frustrating. With all the technology at our command why can't we do better? Starting next year, we will. Streaming video or herky-jerky video The Internet is a packet-based network. Each packet has a source and destination address and often a...
- Blog posts 2007-11-20
- TracePlus Ethernet 5.51.000 (Windows)
- TracePlus Ethernet is a powerful performance and capture tool. Realtime statistics include bandwidth by node, protocol, and address pair. Network dashboard displays network performance updated each second. A history view chronicles the occurrence of specific IP events on your network. Capture packets based on type, address, size, TCP/UDP port, or...
- Software downloads 2007-08-27
- Multi-Layer Network Design With Multicast Traffic and Statistical Multiplexing
- The new packet services and applications are radically changing not only traffic demands but also the architecture of transport networks. Adding packet layer support into backbone nodes is considered an important opportunity by telecom carriers that want to integrate packet technologies of the access and metropolitan networks within their networks...
- White papers 2007-07-27
- Content-Aware P2P Video Streaming With Low Latency
- This paper describes the Stanford P2P Multicast SPPM streaming system that employs an overlay architecture specifically designed for low delay video applications. In order to provide interactivity to the user, this system has to keep the end-to-end delay as small as possible while guaranteeing a high video quality. A set...
- White papers 2007-04-26
- Cisco Security Advisory: Crafted IP Option Vulnerability
- Cisco routers and switches running Cisco IOS or Cisco IOS XR software may be vulnerable to a remotely exploitable crafted IP option Denial of Service DoS attack. Exploitation of the vulnerability may potentially allow for arbitrary code execution. The vulnerability may be exploited after processing an Internet Control Message Protocol...
- White papers 2007-04-22
- Wireless IPTV Over WiMAX: Challenges and Applications
- Internet Protocol Television IPTV is gaining recognition as a viable alternative for the delivery of video by telecommunications and cable companies. It features bandwidth efficiencies, and management; therefore, it is ideally suited for broadcast, multicast, unicast interactive and multimedia services (IMS - IP multimedia). Core networks are packet-based; however, access...
- White papers 2006-10-15
- QoS Multicast Routing Based on Bandwidth Estimation in Mobile Ad Hoc Networks
- The need for supporting real time and multimedia applications for users of Mobile Ad hoc Network MANET is becoming essential. Mobile ad hoc networks can provide multimedia users with mobility they demand, if efficient QoS multicast strategies were developed. This paper has extended QMR to make it more effective than...
- White papers 2006-05-11
- Telecommunications Services by Satellite: Enabling Technologies and Examples
- New-generation satellite telecommunication systems are based on the development of high-interactivity satellite networks, which support the implementation of broadband mesh IP networks for point-to-point and multicast transmission. The technology today is mature enough to enable the full exploitation of satellite-based solutions to complement terrestrial ones, and offers special features to...
- White papers 2006-05-01
- Net video explosion triggers traffic jam worries
- Net video explosion triggers traffic jam worriesQoS and multicastFor the internet to keep working, we need two things:-Quality of Service packet tagging: if the network knows which packets are most important VoIP and streaming media which are of middle importance email and web and which are least important (p2p) then...
- Discussion threads 2006-02-24
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