| Title | Date Added | Company | |
|---|---|---|---|
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Understanding Linux Network Internals: Frame Reception | 2006-01-19 | O'Reilly Media |
| This paper discusses about frame reception, where the hardware uses an interrupt to signal the CPU about the availability of the frame. The IRQ number causes the right handler to be invoked. The handler is typically a function within the device driver registered at device driver initialization time. IRQ function handlers are executed in interrupt mode, with further interrupts temporarily disabled.
Tags: Linux Server OS, Wireless |
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Sprint Global MPLS VPN IP white paper | 2006-09-09 01:00:12 | Sprint |
| This white paper reveals how Sprint Global MPLS VPN, powered by Cisco Systems, provides a standards-compliant solution designed to meet a wide array of enterprise customers' MPLS VPN-networking needs. Sprint MPLS VPN provides a simple, flexible solution, with security equivalent or better than Frame Relay or ATM alternatives. Sprint is able to provide value-added services such as network-based, firewall protected, secure Internet access; remote access; and Extranet connectivity on a single network platform. Sprint's IP backbone carries Cisco Multiservice Network Designation which certifies the network's performance and capabilities to support both delay-sensitive voice and video applications. Sprint is unique in offering wireless access to Global MPLS VPN. Both Class of Service (CoS) and multicasting capabilities are supported by Sprint Global MPLS VPN at no additional charge from the normal port charge. End-to-End performance reporting and industry leading Service Level Agreement (SLAs) come standard with Sprint Global MPLS VPN, and the service spans the U.S. and more than 100 countries worldwide. | |||
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Update Propagation Algorithms for Supporting Disconnected Write in Mobile Wireless Systems With Data Broadcasting Capability | 2005-10-08 | Springer Science+Business Media |
| This paper develops and analyzes algorithms for propagating updates by mobile hosts in wireless client-server environments that support disconnected write operations, with the goal of minimizing the tuning time for update propagation to the server. These algorithms allow a mobile host to update cached data objects while disconnected and propagate the updates to the server upon reconnection for conflict resolutions. The paper investigates two algorithms applicable to mobile systems in which invalidation reports/data can be broadcast to mobile hosts periodically. The paper shows that there exists an optimal broadcasting period under which the tuning time is minimized for update propagations.
Tags: Software Engineering, Mobile - Wireless Communications |
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Low Latency Multimedia Broadcast in Multi-Rate Wireless Meshes | 2005-09-15 | University of New South Wales |
| In a multi-rate wireless network, a node can dynamically adjust its link transmission rate by switching between different modulation schemes. For the current IEEE802.11a/b/g standards, this rate adjustment is limited to unicast traffic only while multicast and broadcast traffic is always transmitted at the lowest possible rate. This paper considers a novel type of multi-rate mesh networks where a node can dynamically adjust its link layer multicast rates to its neighbours. In particular, the paper considers the problem of realising low latency network-wide broadcast in this type of multi-rate wireless meshes. The paper will first show that the multi-rate broadcast problem is significantly different from the single-rate case.
Tags: Multicasting, Mobile - Wireless Communications |
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Responsive Retailing: IP and the High-Street Retailer | 2005-10-25 03:00:03 | IDG (International Data Group) |
| Information and communications technology (ICT) continues to be used more aggressively in the retail sector as companies seek to respond ever faster to changing business and customer needs. Spending in 2004 by the retail sector on new systems was high by historical standards. Investment in ePOS systems was particularly high, due not only to chip and PIN compliance but also to enable the integration of sales data with back-office systems. As a result, IDC believes that 2005 will see retailers focusing on creating the right mix of technology assets in order to optimise the customer experience in terms of price and service. | |||
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Communication Strategies and Coding for Relaying | 2006-12-13 01:00:24 | Alcatel-Lucent |
| Information-theoretic models for relaying are developed and applied to wireline and wireless networks. For wireline networks with node constraints, data compression is shown to improve rates. For wireless networks with half-duplex constraints, decode-and-forward strategies are developed that can give substantial rate gains over no-relay transmission and traditional multihopping. The performance of the strategies is verified by designing coded modulations that approach certain information-theoretic limits. The codes used are irregular Low-Density Parity-Check (LDPC) codes. | |||
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Digital Audio Essentials: Setting Up an Internet Radio Station | 2005-04-21 | O'Reilly Media |
| The Internet and compressed audio formats such as MP3 are a match made in radio heaven. With these technologies, instead of laying out millions of dollars for an FCC license, radio transmitter, tower, building, and expensive DJs, one can "Stream" the broadcasts over the Net to listeners all over the world, with little or no capital investment. Unlike brick-and-mortar radio stations, Internet radio stations are not limited by geography, and they do not require FCC licensing. "Internet radio" is simply a buzzphrase for streaming audio with a bunch of interactive bells and whistles.
Tags: Streaming Media, |
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Approach to Meeting the Government's Evolving Service Requirements | 2005-09-01 03:00:04 | |
| The late 1980's saw an increased market demand for cost-effective alternatives to private line networks. When frame relay emerged as one of the most popular alternatives, MCI WorldCom was able to meet customer demand with its Frame Relay service. MCI WorldCom is constantly enhancing its Frame Relay platform with new features. Three recent additions are frame relay/ATM internetworking, network-to-network interfaces (NNI), and usage-based pricing. Each of these features benefits current and future MCI WorldCom frame relay customers. ATM internetworking provides MCI WorldCom's frame relay customers an easy migration path as they move their voice and data applications to an ATM platform. | |||
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Sprint—Layer 2/Layer 3 Services Converged Over Common IP Backbone Via L2TPv3 in Cisco IOS Software | 20040319042900 | Cisco |
| A network convergence strategy expected to get top attention from service providers in the next few years is the ability to offer traditional Layer 2 transport protocols over a Layer 3 native Internet Protocol (IP) core. Sprint is among the first companies to test and deploy a key technology that makes this possible—Layer 2 Tunneling Protocol Version 3 (L2TPv3)—which is available in Cisco IOS ® Software Release 12.0(21)S or later and whose ratification by the Internet Engineering Task Force (IETF) as a standard is expected by the end of 2003. | |||
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Frame Relay vs. IP VPNs | 2007-02-06 02:00:42 | Sprint |
| In order to identify the best communication solution for
your company, you need a solid understanding of the
respective capabilities and advantages of frame relay and
IP VPNs. This white paper helps provide that knowledge. It discusses “virtual” privacy and the value of shared networks, and the distinctions of Virtual Private Networks. The paper also detail a case for Frame Relay, and a case for IP Virtual Private Networks. Overall, this white paper offers up the pros and cons, the strengths and weaknesses of each option, plus a comparison between the two, to help you decide which solution is truly best for your situation. You will need to register at the host site to download and view this document. |