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 TitleDate AddedCompany
whitepaper End-to-End Quality of Service Scheme for WLAN-Wired Networks2008-07-15 Institute of Electrical and Electronics Engineers
  Wireless local area network (WLAN) can be used to complement existing last-mile access networks such as ADSL and WiMAX, in the provision of telecommunication services. However, because of the use of IP, it is difficult to provide service guarantees to multimedia traffic such as voice and video. This paper seeks to address the challenge of the provision of Quality of Service (QoS) to WLAN access network users connected to a telecommunication service network over a wired backbone link. The focus of the paper is the interworking of the WLAN EDCA QoS scheme and the IP layer QoS scheme on the wired network in order to ensure that service guarantees are provided to multimedia traffic.

Tags: Mobile and Wireless		   
whitepaper Wi-MuMe: WiMAX MuLTIHOP MeSH - A Relay Based Approach to Deliver Broadband to Rural Communities2008-07-14 Indian Institute of Information Technology Bangalore
  Multi-hop relay based WiMAX is one of the proposed solutions to address the problem of capacity and coverage expansion in the developing and under-developed regions of the world. Compared with the Point to Multi-Point (PMP) based communication; the mesh mode of WiMAX can provide better coverage, bandwidth, flexibility and scalability. Studies indicate that in rural communities, voice calls and services are mostly used within the same or surrounding village which drives the necessity of community wireless networks. This paper propose a novel hybrid (PMP and Relay-based) WiMAX Multihop Mesh (Wi-MuMe) architecture that leverages the robustness of mesh network to provides better connectivity at cell edges. It also proposes a hybrid macro frame structure that includes the relay and mesh subframes.

Tags: Mobile and Wireless, Mobile and Wireless		   
whitepaper Control System for Internet Bandwidth Based on Java Technology2008-07-07 Journal of Theoretical and Applied Information Technology
  This paper presents a Java-based real-time Internet access estimation tool for Quality of Service (QoS) in Internet accesses for Multimedia applications (JEQoSIM). It is specially aimed for real-time multimedia applications which use the User Datagram Protocol (UDP). The system is capable of estimating access capacity, available bandwidth and delay as the critical end-to-end QoS parameters for this kind of applications. The algorithm used for QoS estimations is one-way, and is based on the packet train technique. Real-time QoS estimation elements are distributed among a central server and the Internet end user. The central server contains a UDP packet bursts server and a web server that hosts the Java applet that implements the UDP packet bursts client.

Tags: Network Management, Software Development Tools		   
whitepaper Mission-Critical Transfer and Ethernet-Based MAN Networks - A Contemporary Snapshot2008-07-01
  Ethernet technology offers a contemporary choice for MAN environment. Although their growing impact, the Ethernet-based MAN networks still have to solve a number of questions in order to provide resilience, QoS, service management, scalability and compatibility. Moreover, different types of transfer, in particular mission-critical applications, have to be deployed and maintained over this type of MAN networks. Both the set of protocols - SIP, RTP/RTCP and the QoS issues, widely spread in the real-time communication process, have a significant influence over the stages of building and implementing an Ethernet-based MAN environment.

Tags: LAN - WAN, LAN - WAN		   
whitepaper Intelligent Optimization: Advancing Optimization in 3G Networks to Enhance Service Quality, Network Efficiency, and Business Performance Through User-Centric Data Analysis2008-07-01 Motorola
  Managing network complexity, accommodating greater numbers of subscribers, improving coverage to support data services (e.g. email, video, and music downloads), keeping up to speed with fast-changing technology, and driving maximum value from existing networks - all while reducing CapEX and OpEX and ensuring Quality of Service (QoS) for the network and Quality of Experience (QoE) for the user. These are just some of the pressing business issues faced by mobile service providers, summarized by the demand to "Achieve more, for less." In response, operators are increasingly turning to advanced optimization technologies. These provide a picture of the actual end-user experience to make more accurate decisions about how to enhance, and squeeze utmost value from, existing infrastructures.

Tags: Data Tools, Mobile and Wireless		   
whitepaper Deploying RSVP in Multiple Security Domains Networks: Securing Application Quality of Service2008-07-01 Cisco Systems
  This white paper brings out a possible solution for deploying Resource Reservation Protocol (RSVP) admission control within a multiple security domains network. Multiple security domains networks, as they are deployed today, often lack strict QoS guarantees, deterministic performance, application-aware and user-aware policy enforcement, and efficient bandwidth utilization. RSVP-based admission control solution is a widely accepted mechanism to provide all these benefits in an enterprise environment. However, deploying RSVP inside a multiple security domains network requires special attention to achieve end-to-end resource reservation across the security boundaries.   
whitepaper QoS-Aware Channel Scanning for IEEE 802.11 Wireless LAN2008-06-23 Institute of Electrical and Electronics Engineers
  Channel scanning is an important aspect of seamless handovers since it is required in order to find a target Point of Attachment (PoA). In the IEEE 802.11 WLAN, scanning of other channels causes service disruptions with the current AP so that the provided Quality of Service (QoS) will be degraded seriously during the handoff. This paper proposes a QoS supported dynamic channel scanning algorithm. The scanning period is scheduled to guarantee the user's QoS requirements while the scan progresses. The simulation results show that the proposed mechanism reduces service disruptions and provides the desired quality of service to users during the scanning period.

Tags: Network Management, Mobile and Wireless		   
whitepaper Optimizing Campus Networks for Video2008-06-17 Cisco Systems
  For enterprise companies, digital video has quickly evolved from a novelty to a necessity, encompassing a wide range of applications, including desktop video, videoconferencing, digital signage, and video surveillance. For IT managers, this creates a new set of challenges. Video is much more sensitive to latency, jitter, and packet loss than other business applications. While adding bandwidth might help, this can be both expensive and inefficient. This webcast will reveal the technical steps users can take now to optimize the network to deliver high-quality video applications. The attendee will discover how to significantly improve the end-user experience without compromising the performance of the other mission-critical business applications.

Tags: Network Management, Network Technologies		   
whitepaper Maintenance Company Consolidates with Terminal Services2008-06-04 Microsoft
  Tube Lines provides maintenance and support services for the London Underground. With employees spread across more than 90 locations, Tube Lines relied on its terminal services solution to deliver central access to applications. However, limited scalability and low bandwidth affected application performance and employee productivity. The company added more server computers to accommodate its users, but this increased the management burden and strained network resources further. To improve performance and simplify management, Tube Lines is implementing Windows Server® 2008 Terminal Services on 64-bit servers from HP. The company expects to decrease terminal services hardware by 80 percent, making management easier. The company will reduce costs as a result. In addition, faster connections and improved stability will help employees to work more easily

Tags: Network Management, IT Infrastructure, Business Functions, IT Budgeting		   
whitepaper Design, Implementation and Evaluation of a QoS-Aware Transport Protocol2008-06-04 University of New South Wales
  In the context of a reconfigurable transport protocol framework, the paper proposes a QoS-aware Transport Protocol (QSTP), specifically designed to operate over QoS-enabled networks with bandwidth guarantee. QSTP combines QoS-aware TFRC congestion control mechanism, which takes into account the network-level bandwidth reservations, with a Selective ACKnowledgment (SACK) mechanism in order to provide a QoS-aware transport service that fill the gap between QoS enabled network services and QoS constraint applications. The paper has developed a prototype of this protocol in the user-space and conducted a large range of measurements to evaluate this proposal under various network conditions.

Tags: Network Management,