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 TitleDate AddedCompany
whitepaper Adaptive TUF Packet Scheduling Scheme for OFDMA-Based WiMAX Systems2008-09-20
  WiMAX is a well-known broadband wireless access technology to support for different users in multimedia transmission. Its physical layer can be employed with Orthogonal Frequency-Division Multiple Access (OFDMA) technology. IEEE 802.16e has evolved five scheduling types of Quality of Service (QoS) for uplink transmission, but has not yet clearly defined the scheduling types for downlink transmission and described how to schedule the packets efficiently in BS taking into account their QoS. Many packet scheduling algorithms for WiMAX and OFDMA-based networks have been widely studied. This paper proposed an Adaptive Time-Utility Function (A-TUF) packet scheduling scheme to improve the QoS of RT traffic and the whole system throughput.

Tags: Mobile and Wireless, Mobile and Wireless		   
whitepaper Competitive Analysis of Buffer Policies With SLA Commitments2008-09-08 Institute of Electrical and Electronics Engineers
  This paper considers an abstraction of the problem of managing buffers where traffic is subject to service level agreements (SLA). The service provider must on one hand deliver all committed packets, and on the other hand can get extra revenue for any excess packet delivered. Using competitive analysis, they have shown how to utilize additional buffer space and link bandwidth so that the number of excess packets delivered is comparable to the best possible by any off-line algorithm, while guaranteeing that no arriving committed packet is ever dropped. Simulations of such traffic (alone and combined with additional best-effort traffic) show that the performance of the algorithm is in fact much better than analytical guarantees.

Tags: User Satisfaction		   
whitepaper ELAT for BusinessPartners: Offer Definition for Authorized BusinessPartners NAR Only2008-09-01 Avaya
  This paper describes the offer to make ELAT (ExpertNet Lite Assessment Tool) available to Avaya BusinessPartners in NAR. ExpertNet Lite Assessment Tool (ELAT) is a software application that can be used to verify a customer's network is ready for Voice Over IP (VoIP). ELAT simulates VoIP calls in the customer's network and gathers VoIP Quality of Service (QoS) measurements (delay, packet loss, and jitter), and Network Voice Quality (NVQ) for those calls. ELAT typically runs and collects data from testing for about a week. After gathering the QoS measurements, ELAT generates a report that shows whether the network is suitable for VoIP.

Tags: Network Management, Software Development Tools		   
whitepaper Q-CAD: QoS and Context Aware Discovery Framework for Mobile Systems2008-08-08 Institute of Electrical and Electronics Engineers
  This paper presents Q-CAD, a resource discovery framework that enables pervasive computing applications to discover and select the resource(s) best satisfying the user needs, taking the current execution context and Quality-of-Service (QoS) requirements into account. The available resources are first screened, so that only those suitable to the current execution context of the application will be considered; the shortlisted resources are then evaluated against the QoS needs of the application, and a binding is established to the best available.

Tags: Software Development Tools, Software Development Tools		   
whitepaper Home Entertainment Networks and Flying Cars12008-08-05 1394 Trade Association
  Today's entertainment networks are reminiscent of the flying cars which have been promised for years but only seen in magazines or demonstrations. They are typically cobbled together from parts that require professionals to assemble and maintain, are expensive, and both have a tendency to crash when operated by someone with inadequate training. They also solve a similar problem. Highways, like most of today's networks, do not guarantee when the data will arrive at the destination. The problem is traffic.

Tags: Network Technologies, Mobile and Wireless		   
whitepaper Telecom 2.0: Mind over matter2008-07-21 ntl:Telewest Business
  ntl:Telewest Business believes that the role of the telco is evolving. Gone are the days when it was enough to simply focus on circuits and minutes, customers now need a far higher degree of interaction and look for suppliers who will talk business solutions with them.

Tags: Network Management, Network Technologies		   
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