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University of Massachusetts enters online degree deal with China: University of Massachusetts enters online degree deal with ChinaWhat are you thinking UMass?What is happening? China murders its citizens so we engage as if nothing is happening? Please, I beg my University that I love, stop and THINK! What are you doing? In your rush to...; Tags: University of Massachusetts, UMass; Discussion threads 2008-04-03
University of Massachusetts enters online degree deal with China: The University of Massachusetts announced today that it would be the first foreign university to offer courses and degrees via the Internet in China. Plans call for UMassOnline to offer credit and non-credit courses, certificate programs, and degree programs from all five UMass campuses -- through online...; Tags: China, University Of Massachusetts, Internet, Groupware, Enterprise Software, Software, Christopher Dawson; Blog posts 2008-03-31
Memory Buddies: Exploiting Page Sharing for Server Consolidation in Virtualized Data Centers: Modern data centers increasingly employ virtualization in order to maximize resource utilization while reducing costs. With the advent of multi-core processors, memory has become the key limiting resource when running multiple virtual machines on a given server. This paper argues for exploiting page sharing to significantly reduce aggregate memory requirements...; Tags: Data Center, University Of Massachusetts, Data Centers, Storage, Server Consolidation, Servers, Hardware, Data Management; White papers 2008-01-28
A Three-Stage Load-Balancing Switch: This paper presents a three-stage load-balancing switch without the mis-sequencing problem. Analytical results indicate that this 3SLB switch is able to guarantee 100% throughput as an ideal OQ switch plus a bounded delay. Moreover, the switch architecture naturally minimizes the blocking problem without any scheduling computation. There is no speedup...; Tags: University Of Massachusetts, Fabric, Network Technology, Networking; White papers 2008-01-15
Prediction Based Routing for Vehicular Ad Hoc Networks: Development in short range wireless LAN WLAN and long range wireless WAN WWAN technologies have motivated recent efforts to integrate the two. This creates new application scenarios that were not possible before. Vehicles with only WLAN radios can use other vehicles that have both WLAN and WWAN radios as mobile...; Tags: Mobile, University Of Massachusetts, WLAN, Wireless LANs, LANs, Wi-Fi, Wireless, Advertising & Promotion, Networking, Marketing; White papers 2008-01-01

Understanding the Interaction Between Overlay Routing and Traffic Engineering: This paper studies the interaction between overlay routing and MultiProtocol Label Switching MPLS Traffic Engineering TE in a single Autonomous System AS. This interaction is formulated as a two-player non-cooperative non-zero sum game, where the overlay tries to minimize the delay of overlay traffic and TE's objective is to minimize...; Tags: Overlay, MPLS, University Of Massachusetts, Games, Networking, Personal Technology; White papers 2008-01-01
On the Autocorrelation Structure of TCP Traffic: The statistical characteristics of network traffic - in particular the observation that it can exhibit long range dependence - have received considerable attention from the research community over the past few years. In addition, the recent claims that the TCP protocol can generate traffic with long rage dependent behavior has...; Tags: University Of Massachusetts, TCP, Tcp/Ip, Networking; White papers 2007-01-01
Providing Throughput Differentiation for TCP Flows Using Adaptive Two-Color Marking and Two-Level AQM: This paper proposes a new paradigm for a Differential Service DiffServ network consisting of two-color marking at the edges of the network using token buckets coupled with differential treatment in the core. Using fluid-flow modelling, the authors present existence conditions for token-bucket rates and differential marking probabilities at the core...; Tags: University Of Massachusetts, TCP, Core, Tcp/Ip, Networking, Performance Management, Human Resources, Workforce Management; White papers 2007-01-01
A Self-Tuning Structure for Adaptation in TCP/AQM Networks: Since Active Queue Management AQM Schemes are essentially feedback controllers, their impact on closed-loop behavior is directly related to the TCP congestion dynamic which, in turn, is strongly affected by network parameters such as link capacities and TCP loads. These parameters are non-stationary and in the absence of real-time estimates,...; Tags: Parameter, Network, University Of Massachusetts, TCP, Tcp/Ip, Networking; White papers 2007-01-01
Modeling Non-Functional Aspects in Service Oriented Architecture: Service Oriented Architecture SOA is an architectural style to reuse and integrate subsystems in existing systems for designing new applications. Each application is designed in an implementation independent manner using abstract concepts: network services and connections between network services. In SOA, the non-functional aspects of services and connections should be...; Tags: Aspect, University Of Massachusetts, SOA, Modeling, Service-Oriented Architecture (SOA), UML, Web Services, Middleware, Enterprise Software, Software, Ooa/Ood/Oop, Software Development, Software/Web Development; White papers 2006-06-19
A Service-Oriented Design Framework for Secure Network Applications: Service Oriented Architecture SOA is an architectural style to reuse and integrate existing systems for designing new applications. Each application is designed in an implementation independent manner using two major abstract concepts: services and connections between services. In SOA, the non-functional aspects (e.g., security and fault tolerance) of services and...; Tags: Application, Network, University Of Massachusetts, SOA, Service-Oriented Architecture (SOA), Web Services, Middleware, UML, Enterprise Software, Software, Ooa/Ood/Oop, Software Development, Software/Web Development; White papers 2006-06-19
Proposal: Amherst Community Wireless Project: The Amherst Community Wireless project is a cooperative effort between UMass Amherst and the Town of Amherst. The goal of the project is to deploy a municipal wireless network covering the Town's 17 square miles of roads and facilities with wireless devices. This communication network will provide several major benefits...; Tags: University Of Massachusetts, Wi-Fi, Wireless; White papers 2006-03-09
MaxProp: Routing for Vehicle-Based Disruption-Tolerant Networks: Disruption-Tolerant Networks DTNs attempt to route network messages via intermittently connected nodes. Routing in such environments is difficult because peers have little information about the state of the partitioned network and transfer opportunities between peers are of limited duration. This paper proposes MaxProp, a protocol for effective routing of DTN...; Tags: Packet, Network, University Of Massachusetts, Peer, MaxProp, Networking; White papers 2006-01-09
Performance Modeling of Epidemic Routing: This paper develops a rigorous, unified framework based on Ordinary Differential Equations ODEs to study epidemic routing and its variations. These ODEs can be derived as limits of Markovian models under a natural scaling as the number of nodes increases. While an analytical study of Markovian models is quite complex...; Tags: Performance, University Of Massachusetts, Epidemic, Performance Management, Human Resources, Workforce Management; White papers 2005-11-27
Architecture and Scheduling Algorithm for a Multi-Channel Wireless Infrastructure Network With Diversity Management Layer: 802.11a protocol provides 12 non-overlapping frequency bands, but the common wireless LAN usually only uses one channel. This paper proposes a "super" Wi-Fi network architecture, which uses the multiple non-overlapping channels simultaneously to improve the total network bandwidth with minimum changes to the existing devices. To be compliable to the...; Tags: Algorithm, IEEE 802.11, Network, University Of Massachusetts, Wi-Fi Network, 802.11a Protocol, Wireless LANs, Wi-Fi, Wireless, Networking; White papers 2005-11-01
Synchronization of TCP Flows in Networks With Small DropTail Buffers: A recent fluid-model formulation of an Internet congestion-control problem considers routers with small Droptail buffers. This paper is interested in the oscillatory regime of such networks and considers a topology where two TCP-controlled flows (each regulated by separate edge routers) merge to compete for bandwidth at a common core router....; Tags: Router, Network, Coherence, University Of Massachusetts, Buffer, TCP, Routers & Switches, Tcp/Ip, Networking, Network Technology; White papers 2005-09-16
Explaining Routing Performance in Disruption Tolerant Networks: Many routing algorithms for both traditional and ad hoc networks require a complete and contemporaneous path of peers from source to destination. Disruption Tolerant Networks DTNs attempt to deliver messages despite a frequently disconnected link layer (e.g., due to peer mobility, limited communication range, and power management limitations). While several...; Tags: Algorithm, Power Management, Performance, Network, University Of Massachusetts, Engineering, Performance Management, Human Resources, Workforce Management; White papers 2005-08-31
Multi-Path TCP: A Joint Congestion Control and Routing Scheme to Exploit Path Diversity in the Internet: The problem of congestion-aware multi-path routing in the Internet is considered in this paper. Internet routing protocols select only a single path between a source and a destination. However, due to many policy routing decisions, single-path routing may limit the achievable throughput. This paper envisions a scenario where multi-path routing...; Tags: University Of Massachusetts, Congestion, TCP, Internet, Engineering; White papers 2005-07-07
Turducken: Hierarchical Power Management for Mobile Devices: This paper presents the design, implementation, and evaluation of Turducken, Hierarchical Power Management architecture for mobile systems. It focuses on a particular instantiation of HPM, which provides high levels of consistency in a laptop by integrating two additional low power processors. This paper demonstrates that a Turducken system can provide...; Tags: Power Management, Mobile, University Of Massachusetts, Battery, Mobile Device, Laptop Computer, Engineering, Notebooks, Advertising & Promotion, Hardware, Notebooks & Tablets, Marketing; White papers 2005-04-28
Procedure for Removing Spyware and Resolving Firewall Issues: Service Pack 2 (SP2) for Windows XP has kindly integrated both a firewall and pop-up blocker. Both can be easily turned off from the firewall icon that sits in the system tray bottom right corner. The pop-up blocker is integrated with the Internet Explorer IE browser as a new button...; Tags: University Of Massachusetts, Pop-up Blocker, Spyware, Firewalls, Network Security, Security, Viruses And Worms, Networking; White papers 2005-01-14