multipath

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Highly-Resilient, Energy-Efficient Multipath Routing in Wireless Sensor Networks

Previously proposed sensor network data dissemination schemes require periodic low-rate flooding of data in order to allow recovery from failure. The paper considers constructing two kinds of multipaths to enable energy efficient recovery from failure of the shortest path between source and sink. Disjoint multipath has been studied in the...

Tags: Recovery, Network, Wireless Sensor Network, Multipath, Wireless

White papers 2008-01-01

Towards Internet-Wide Multipath Routing

Today's Internet would be more efficient and robust if routers could flexibly divide traffic over multiple paths. Often, having just a few alternate paths is sufficient for customizing paths for different applications, improving security, reacting to failures and balancing load. Yet alternate paths are often unavailable, due to two barriers....

Tags: Path, Multipath, Internet, Productivity

White papers 2007-06-15

Multipath Routing in MPLS Networks - A Survey

The paper presents the problem of multipath routing supporting the Quality of Service QoS in MPLS networks. First, the paper briefly surveys the mechanisms used for setting up data transmission channels. The paper considers those algorithms applied in conventional IP networks which are also used by the MPLS technology. Then,...

Tags: MPLS, Survey, Multipath, Network Technology, Networking

White papers 2007-01-08

Multipath Routing Based Secure Data Transmission in Ad Hoc Networks

The specific characteristics of Mobile Ad Hoc NETworks MANETs make cooperation among all nodes and secure transmission important issues in its research. Misbehaving nodes with different intentions and capabilities would conduct various types of misbehavior in the networks. This paper presents and evaluates a scheme, in which multipath routing combined...

Tags: Advertisement, Node, Multipath, Networking

White papers 2006-08-31

Analysis of MPLS Multipath Routing With the Failure and Repair of LSPs

Efficient operation of multipath routing is considered as one of the important aspects in MPLS traffic engineering. Multipath routing has an advantage over the traffic routing based on single shortest paths because single path routing may lead to unbalanced traffic situations and degraded QoS Quality of Service. This paper proposes...

Tags: MPLS, Analysis, Multipath, Network Technology, Networking

White papers 2006-08-31

Combining Multipath Routing and Congestion Control for Robustness

Flexible routing schemes mitigate some of the problems associated with uncertain traffic patterns and workloads by making the exact location of capacity less important: if there is available capacity the routing scheme will find it. This paper proposes a combined multipath routing and congestion control architecture that can provide performance...

Tags: Traffic, Congestion, Multipath, Engineering, Performance Management, Human Resources, Workforce Management

White papers 2006-02-24

Schedulable Regions and Equilibrium Cost for Multipath Flow Control: The Benefits of Coordination

This paper considers deterministic differential equation models for the varying number of flows in a network. These arise naturally as limits of stochastic models under joint scaling of flow arrival rates and network capacities. This paper compares these dynamics under coordinated multipath routing and parallel, uncoordinated routing. The paper shows...

Tags: Multipath, Benefits, Networking, Human Resources

White papers 2006-02-24

Joint PHY/MAC Based Link Adaptation for Wireless LANs With Multipath Fading

Wireless local area networks offer a range of transmitted data rates that are to be selected according to estimated channel conditions. However, due to packet overheads and contention times introduced by the CSMA/CA multiple access protocol, effective throughput is much less than the nominal data rates. Most multimedia applications use...

Tags: Throughput, Network, WLAN, Adaptation, Payload, Multipath, University Of California, LANs, Wireless LANs, Wi-Fi, Networking, Wireless

White papers 2006-01-18

Optimizations to Multipath Routing Protocols in Mobile Ad Hoc Networks

Mobile Ad hoc Networks are typically characterized by high mobility and frequent link failures. As a result, routing algorithms selecting a single path during route creation have to make frequent route discoveries resulting in decreased throughput and high end-to-end delay. Multipath routing approaches like AOMDV make use of pre-computed routes...

Tags: Mobile, Optimization, Mobility, Routing Protocol, Multipath, Advertising & Promotion, Marketing

White papers 2005-12-12

Multipath Routing in Wireless Mesh Networks

This paper addresses multipath routing in a mobile wireless network. The paper reviews the premise that a routing protocol should prefer disjoint path construction and argue that using disjoint paths limits route reliability in mobile ad hoc networks compared to using multiple loop-free paths that need not be disjoint. In...

Tags: Mobile, Network, Routing Protocol, Multipath, University Of California, Wireless, Mesh Networking, Advertising & Promotion, Networking, Marketing

White papers 2005-09-16

An Introduction to Multicarrier Modulation

Multicarrier modulation helps to reduce the detrimental effects of multipath fading. Because of its robustness to multipath, and the ease of implementing it in transmitters and receivers using the Fast Fourier Transform FFT, the MCM concept is growing rapidly in practical importance. It can be found today in IEEE standards...

Tags: Modulation, Multipath, University Of Toronto, WiMAX, Wireless LANs, Wireless

White papers 2005-05-31

Multipath Routing and Multiple Description Coding in Ad-Hoc Networks: A Simulation Study

The nature of wireless multihop ad-hoc networks makes it a challenge to offer connections of an assured quality. In order to improve the performance of such networks, multipath routing in combination with Multiple Description Coding MDC has been proposed. By splitting up streams of multimedia traffic into several substreams (called...

Tags: Network, Association For Computing Machinery, Multipath, Networking

White papers 2004-10-07

Dynamically Adaptive Multipath Routing Based on AODV

Mobile ad hoc networks are typically characterized by high mobility and frequent link failures that result in low throughput and high end-to-end delay. To reduce the number of route discoveries due to such broken paths, multipath routing can be utilized so that alternate paths are available. Current approaches to multipath...

Tags: Path, Multipath

White papers

Additional Resources

Next XenServer -- code named Orlando -- now in beta* testing

Citrix recently released a beta test version of its next generation XenServer, code named "Orlando," which is expected to ship in September.  Th next version will offer a variety of new features including automated high availability, support for the Xen hypervisor 3.2 and Windows Server 2008 guests, performance statistics,...

Tags: Performance, Citrix Systems Inc., Virtual Machine, Desktop Virtualization, Microsoft Windows, Performance Management, Servers, Operating Systems, Software, Human Resources, Workforce Management, Hardware, Paula Rooney

Blog posts 2008-08-12

Hyper-V: It's here

As reported by ZDNet's Mary Jo Foley yesterday, Microsoft released its Hyper-V bare metal hypervisor platform (Updated: 4:20PM EST)for Windows Server 2008 today, in a virtual shot across competitor and market leader VMWare's bow, which currently holds over an 80 percent market share in x86 virtualization. We...

Tags: Performance, Microsoft Windows Server, Intel X86, SuSE Linux Enterprise Server, Service Pack, VMware Inc., Microsoft Corp., Hyper-V, SMP, Microsoft Windows, Microsoft Windows Server 2008, Virtualization, Servers, Operating Systems, Open Source, Software, Hardware, Jason Perlow

Blog posts 2008-06-26

Improving Load Balancing With Multipath Routing

Internet service providers have to provision network resources to optimize bandwidth utilization. Dynamic routing protocols take traffic variations into account to control the load distribution. Multipath routing protocols attempt to take advantage of the path diversity to bring network robustness and reliability. Indeed, with a specific traffic engineering policy, they...

Tags: Network, Load Balancing, Routing Protocol, University Louis Pasteur, Network Technology, Networking

White papers 2008-05-18

Convergence Analysis of Iteratively Detected Time Hopping and DS-CDMA Ultrawide Bandwidth Systems by EXIT Charts

This paper presents a novel analysis on the decoding convergence of Time Hopping TH and Direct Sequence DS Code-Division Multiple-Access CDMA Ultrawide Bandwidth UWB systems when communicating over multipath Nakagami channels. The analysis is based on the Extrinsic Information Transfer EXIT chart where the UWB systems are serially concatenated pulse-position...

Tags: UWB, Analysis, Convergence, Ultrawideband (UWB), Wireless

White papers 2008-04-15

MATE: MPLS Adaptive Traffic Engineering

Destination-based forwarding in traditional IP routers has not been able to take full advantage of multiple paths that frequently exist in Internet Service Provider Networks. As a result, the networks may not operate efficiently, especially when the traffic patterns are dynamic. This paper describes a multipath adaptive traffic engineering mechanism,...

Tags: MPLS, Network, University Of Michigan, Networking, Network Technology

White papers 2008-01-01

A Constrained Multipath Traffic Engineering Scheme for MPLS Networks

A traffic engineering problem consists of setting up paths between the edge nodes of the network to meet traffic demands while optimizing the network performance. It is known that total traffic throughput in a network, hence the resource utilization, can be maximized if the traffic demand is split over multiple...

Tags: MPLS, Traffic, Path, Traffic Engineering Problem, Engineering, Development Tools, Networking, Software Development, Software/Web Development

White papers 2008-01-01

A Multipath Background Network Architecture

Background transfers, or transfers that humans do not actively wait on, dominate the Internet today. In today's best-effort Internet, background transfers can interfere with foreground transfers causing long wait times, thereby hurting human productivity. This paper presents the design and implementation of a background network, Harp, that addresses this problem....

Tags: Network, University Of Massachusetts, Network Architecture, Internet, Networking

White papers 2008-01-01