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 TitleDate AddedCompany
whitepaper Maximizing Unavailability Interval for Energy Saving in IEEE 802.16e Wireless MANs2009-04-01 Institute of Electrical and Electronics Engineers
  This paper presents an energy conservation scheme, Maximum Unavailability Interval (MUI), to improve the energy efficiency for the Power Saving Class of Type II in IEEE 802.16e. By applying the Chinese Remainder Theorem, the proposed MUI is guaranteed to find the maximum Unavailability Interval, during which the transceiver can be powered down. The paper also proposes new mathematical techniques to reduce the computational complexity when solving the Chinese Remainder Theorem problem. Because the computational complexity is reduced significantly, the proposed MUI can be practically implemented in real systems. The proposed MUI is fully compatible with the 802.16e standard. It provides a systematic way to determine the start frame number, one of the important parameters defined in the standard.

Tags: Mobile and Wireless, Mobile and Wireless		   
whitepaper Designing Your Network for the Future2009-01-01 CDW
  Here are the new products and technologies to consider as you refresh, upgrade and expand.

Tags: Software Development Tools, LAN - WAN, IT Budgeting		   
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 Media Converters: LAN to MAN and Beyond2008-06-01 IMC Networks
  Media converters play an important role in today's multi-protocol, mixed media Local Area Networks. For example, LAN administrators can deploy media converters to integrate fiber optic cabling and active equipment into existing copper-based, structured cabling systems while achieving significant cost-savings. Media converters are also becoming a critical piece of the data networks outside the LAN, as electrical-to-optical conversion technology is enabling service providers to speed up the deployment and minimize the cost of provisioning Fiber-to-the-Subscriber, and offering MAN access and data transport services to enterprise customers. This paper discusses the benefits of Ethernet as an end-to-end transport protocol, and illustrates how media converters are lighting up the first mile, enabling tier 1 carriers, MSOs, CLECs and "EtherLECs" to offer their customers a transparent WAN interface.

Tags: LAN - WAN, LAN - WAN		   
whitepaper Ohio Healthcare Organization Upgrades SAN Fabric2008-04-01 Cisco Systems
  OhioHealth is a not-for-profit, charitable, healthcare organization that serves and supports the Ohio community. OhioHealth needed a more manageable and efficient disaster recovery solution and standardize IT infrastructure in a cost effective manner. OhioHealth upgraded SAN to a fast, scalable solution while lower overall costs and installed optical Metro-Area Network (MAN) for fastest data availability.

Tags: Desktop Client OS, Storage Hardware		   
whitepaper Building High-End Ethernet Functionality Into SDH Networks2008-03-05 Tejas Networks
  For now, NG-SDH seems to have its roots firmly entrenched in Service Provider networks. Given the ubiquitous presence of SDH in the metro, incrementally offering high-end Ethernet services over this SDH network would be the best way of packetizing the metro. This approach ensures that the Service Provider can start offering risky but more profitable data services without letting go of 'Cash cow' voice services. The incremental nature of this approach should also alleviate the risk of introducing these new data services into the network. The high comfort-levels Network Operators have with NG-SDH, and NG-SDH's strong OAM features, combine well with the flexibility and efficiency of Ethernet to give the Service Provider the best of both worlds.

Tags: LAN - WAN		   
whitepaper Finding an Effective Sustainable Model for a Wireless Metropolitan-Area Network: Analyzing the Case of Pittsburgh2007-09-15 Carnegie Mellon University
  Many cities are seeking ways to facilitate the deployment of a Wireless Metropolitan-Area Network (WiMAN) based on wifitechnology. City leaders must often balance competing goals, including the desire to maximize the area in which wireless services will be available, to maximize competition among providers, to minimize subsidies from government agencies and non-profit organizations, and to ensure financial sustainability. This paper investigates the extent to which these goals can be met with four basic models: one citywide monopoly WiMAN provider, facilities-based competition from multiple citywide WiMAN providers, one citywide WiMAN offering wholesale services to competing retail service providers, and open competition where multiple providers are free to serve only the more profitable neighborhoods.

Tags: LAN - WAN		   
whitepaper Metropolitan Ethernet Network: A Move From LAN to MAN2007-08-17 University of California
  Ethernet has been the indisputable technology of choice for the Local Area Networks (LANs) for more than 30 years. Its popularity is due to its versatility, plug-n-play feature, and low cost. It has transformed from a CSMA/CD technology providing low throughput to a full duplex link increasing the throughput 1000 folds. Despite these improvements, Ethernet is still restricted to local area networks, and is not ready to become a carrier grade technology for wider areas. However, there are efforts to assist the transformation of Ethernet from the mainstream LAN technology to the possible adoption for Metropolitan Area Networks (MENs). This paper will introduce the movement from basic Ethernet to the carrier grade Ethernet for MENs.

Tags: LAN - WAN, LAN - WAN		   
whitepaper Wireless Network Architecture Synthesis and Analysis2007-03-01 Micronet Communications
  Multiple geographic locations represent the essence of most Metropolitan Area Network (MAN) and Wide Area Network (WAN) architectures. Hierarchical relationships, identification of orphaned sites, area coverage of network base stations, frequency planning of microwave paths used for backhaul, latency analysis, and reliability analysis are but a few of the issues that must be addressed in the design of modern networks. Micronet uses a powerful tool termed Cluster Analysis to provide insight into key network parameters. By clustering sites using appropriate criteria, network neighborhoods can be quickly identified, as can orphan sites.

Tags: Network Management, LAN - WAN		   
whitepaper Networking and Collaboration Keep the Aggies in the Game2007-02-26 AT&T Intellectual Property
  Texas A&M University - home of the "Aggies" - is one of America's premiere teaching and research institutions. The need for communication - be it via audio, video or web conferencing - extends far beyond the 5200-acre main campus to its branch locations widely dispersed throughout Texas, to international locations in Mexico and Qatar, as well as to other schools. AT&T GigaMAN dedicated fiber optic connections and Customized Switched Metro Ethernet (CSME) services provide fast, reliable last mile access to the network and to the main campus. These enable students to take advantage of remote learning opportunities, help professors enrich course content and allow researchers to partner with peers from other institutions and compete for grant dollars.

Tags: Network Technologies, LAN - WAN		   

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