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 TitleDate AddedCompany
whitepaper A QoS Provisioning Framework for Wireless Mesh Network2008-03-06 Thales
  Moving on from the first generation of Wireless Mesh Networks (WMNs), where community and city-wide type mesh networks are deployed to provide best-effort network access, the next generation WMNs is about extending its capability to allow Quality of Service (QoS) at carrier grade level, enabling real-time and multimedia applications to be offered to users of the network. Whilst technologies exist to support QoS, they provide no real answer to offering QoS network-wide across WMN. In this paper, a QoS provisioning framework is therefore proposed that provides a combination of resource provisioning and routing for WMN.

Tags: Mobile - Wireless Communications		   
whitepaper RAD Enables French Alternative Operator to Deliver Differentiated Services Over Ethernet to Enterprise Customers2008-03-03 RAD Data Communications
  Completel is the primary French telecommunications operator with a nationwide network dedicated to enterprise customers. The company wanted to facilitate the provisioning of differentiated services over Ethernet to enterprise customers. Completel's LAN-to-LAN data service has evolved into a feature-rich offering with options that have been introduced in response to customer demand. RAD's ETX line enables Completel to offer on the same physical link other value added services such as IP VPN, VoIP and Very High Rate Internet access with the same QoS guarantees it provides to LAN-to- LAN subscribers.

Tags: Quality of Service, VPNs		   
whitepaper QoS Challenges and Opportunities in Wireless Sensor/Actuator Networks2008-02-21 Molecular Diversity Preservation International (MDPI)
  A Wireless Sensor/Actuator Network (WSAN) is a group of sensors and actuators that are geographically distributed and interconnected by wireless networks. Sensors gather information about the state of physical world. Actuators react to this information by performing appropriate actions. WSANs thus enable cyber systems to monitor and manipulate the behavior of the physical world. WSANs are growing at a tremendous pace, just like the exploding evolution of Internet. Supporting Quality of Service (QoS) will be of critical importance for pervasive WSANs that serve as the network infrastructure of diverse applications. To spark new research and development interests in this field, this paper examines and discusses the requirements, critical challenges, and open research issues on QoS management in WSANs.

Tags: Mobile - Wireless Communications		   
whitepaper Cross-Layer Network Design for Quality of Services in Wireless Local Area Networks: Optimal Access Point Placement and Frequency Channel Assignment2008-02-19 Suranaree University of Technology
  This paper presents a novel network design algorithm for Wireless Local Area Networks (WLANs) considering optimal access point placement and frequency channel assignment problems. The proposed algorithm is a cross-layer approach, accounting the physical layer and the data link layer functionalities of the WLANs in the network design process. Specifically, a multi-objective optimization problem is defined. The proposed objective function separates the physical layer considerations and the data link layer contributions in order to differently change the weights of the two characteristics of WLANs. Numerical results are presented and the jointed impact of the physical and the data link layer functionalities on the WLAN quality of services are evaluated.

Tags: Quality of Service, Network Design		   
whitepaper Data Mining for Managing Intrinsic Quality of Service in MPLS2008-02-15 Riga Technical University
  Quality of Service (QoS) is more and more becoming a necessity for emerging applications carried by IP networks. Thus, dynamic admission control is a very important mechanism that aims, not only to ensure resources availability, but also to verify QoS constraints satisfaction. Nowadays traffic engineering is an essential ingredient for guaranteeing QoS and for efficient or cost effective resource utilization, design and operation of IP networks. MPLS (Multiprotocol Label Switching) is a standards-based technology that can improve network performance and QoS for select traffic. MPLS offers multiple classes of service, each associated with different locally significant labels in the packet header and the packets are forwarded by network nodes via label swapping types of traffic. MPLS uses short, fixed-length similar to layer 2 switching.

Tags: Data Mining - Analysis, MPLS		   
whitepaper New TechNet Webcast: Windows Server 2008 and Windows Vista Better Together Technologies (Level 200)2008-02-11 Microsoft
  The presenter of this webcast discusses many new features shared by the Windows Vista and Windows Server 2008 operating systems. The webcast start by talking about why Windows Server 2008 and Windows Vista are so closely related and how, together, they enable many new and exciting features that promote more efficient management. The attendee will learn about the new features that make data more available, such as improvements to offline files, client-side print rendering, the transactional file system, and policy-based Quality of Service (QoS).

Tags: Windows Server 2008, Windows Vista		   
whitepaper Enhanced Cost Optimized VPN Provisioning Algorithm2008-02-01 Kalasalingam University
  A Virtual Private Network (VPN) aims to emulate the services provided by a private network over the shared Internet. The endpoints of VPN are connected using abstractions such as Virtual Channels (VCs). Reliability of an end-to-end VPN connection depends on the reliability of the links and nodes. VPN service providers provide new services with Quality of Service (QoS), guarantees are also resilient to failures. Supporting QoS connections requires the existence of routing mechanisms that computes the QoS paths, where these paths satisfy the QoS constraints.

Tags: VPNs		   
whitepaper An Adaptive Bandwidth Request Mechanism for QoS Enhancement in WiMax Real Time Communication2008-01-31 Larsen & Toubro Infotech
  The IEEE 802.16 standard for broadband wireless metropolitan area network supports real time and non-real time services. It has a provision to design new packet-scheduling algorithms according to requirements to support Quality of Service (QoS) for real-time services. Till now published literature on WiMax states that, a Service Station (SS) requests for bandwidth to a Base Station (BS) for already arrived packets at SS from users. The BS then allocates the bandwidth to SS according to priority-based request. This paper proposes a novel adaptive-bandwidth scheduling algorithm at SS, for real-time Polling Services (rtPS), wherein the SS predicts the arrival of rtPS packets prior to the arrival and requests the BS for bandwidth in advance.

Tags: Bandwidth Issues, WiMAX (802.16)		   
whitepaper Using Attribute-Managed Storage to Achieve QoS2008-01-31 Hewlett-Packard
  Specification of storage systems by means of user-oriented Quality-of-Service attributes is the key to ease of use and efficient resource utilization. Attribute-managed storage systems hide details of the underlying storage systems through virtual store abstractions - units of storage with quality of service guarantees. The mapping of virtual stores onto physical storage devices can be optimized to achieve high level goals such as balancing system performance against total system cost. The paper demonstrates the feasibility of this approach with a prototype matching engine called Forum.

Tags: Quality of Service, 		  
whitepaper Providing End-to-End Network QoS Via Overlay Networks and Bandwidth On-Demand2008-01-15 Sun Microsystems
  This paper examines why and how Overlay Networks are used to address the need for End-to-End assured Quality of Service (QoS) for Internet-based transport services. For organizations that provide services and products over the Internet, assured network QoS is highly important because it is a key factor in determining the quality of end-user experience their customers have. The main contributions of this paper are the identification and analysis of basic architecture design patterns required to build overlay network-based value-added functions such as QoS assurance, and the proposal and analysis of reconfigurable networking (bandwidth on-demand) as a an approach for expanding the range services and capabilities available on existing networks.

Tags: Bandwidth Issues		   


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