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- 802.11n, MIMO, and multipath environments
- Tenants are renters"That describes in a nutshell the basic tenants behind MIMO antenna systems."It should be "one of the basic tenets" Tenants are people who rent houses.Otherwise, nice informative article.RE: 802.11n, MIMO, and multipath environmentsWow. As an old-timey short wave radio enthusiast, I have rebuilt and improved not a...
- Tags: Round One from VA, MIMO, tenant, multipath environment, IEEE 802.11n
- Discussion threads 2007-11-15
Additional Resources
- Wi-Fi 101: Multipath environments and how they affect Wi-Fi propagation
- Diversity dual antennas help multipath issuesDiversity dual antennas help multipath issues. 802.11n MIMO systems actually utilize multipath to its advantage.
- Tags: Wireless LANs, georgeou, environment, Wi-Fi
- Discussion threads 2007-10-18
- 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
- Multipath Live Streaming Via TCP: Performance and Benefits
- Recently, a number of studies have demonstrated that multipath streaming is a promising technique to overcome the challenges of multimedia streaming over the best-effort Internet. These studies all focus on UDP-based streaming. Motivated by the wide use of TCP for streaming in practice and the earlier results on single-path TCP...
- Tags: Performance, Benefit, TCP, Live Streaming, Tcp/Ip, Networking
- White papers 2006-08-10
- Multipath for Linux
- Greetings,We are implementing a cluster solution with Linux RH Enterprise Edition 4 in a Proliant DL380 G4 and a MSA 500 Storage, with Service Guard for Linux and Multipath Software and everything is working well except the multipath funcionality, which should be able to view the disks at MSA trough...
- Tags: UNIX, Operating systems, Servers, Linux
- Q&A 2006-03-31
- 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
- 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
- VFMAs, Virtual-Flow Multipath Algorithms for MPLS
- This paper deals with IP Traffic Engineering TE for multipath selection in MPLS networks. A centralized and a distributed routing algorithms are proposed, which aggregate IP flows entering the MPLS domain, and optimally partition them among virtual flows that are forwarded on multiple paths according to their Quality of Service...
- Tags: Algorithm, MPLS, Multipath Algorithm, Network Technology, Networking
- White papers 2006-02-12
- 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
- Linear Multiuser Detection for Uplink Long-Code CDMA Systems
- In the uplink of a long-code CDMA system, base station knows spreading codes of all serviced users. Given propagation delays, code-decorrelation can be performed to separate users' inputs in each symbol interval even in a multipath environment. To detect information symbols, first the subspace technique is applied to estimate multipath...
- Tags: University Of California, Productivity, Performance Management, Cellular Phones, Human Resources, Workforce Management, Consumer Electronics, Personal Technology
- White papers
- 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
- 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
- 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
- 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
- On Througput of Multipath Data Transmission Over Multihop Ad Hoc Networks
- Data transmission in ad hoc networks involves interactions between MAC-layer protocol and data forwarding along network-layer paths. These interactions have been shown to have significant effect on system performance. In this paper, their impact on the multipath data transmission system over multihop IEEE 802.11 MAC-based ad hoc networks is studied....
- Tags: IEEE 802.11, Washington State University, System Throughput, Wireless LANs, Wi-Fi, Wireless
- White papers 2006-07-04
- Using Linux Mdadm Multipathing With Sun StorEdge Systems
- Linux mdadm Multiple Device Administration is a tool for creating, managing and monitoring device arrays using the "md" driver in Linux, also known as Software RAID arrays. Mdadm was designed for RAID device creation, but also includes limited support for the creation, use and manipulation of multipath storage devices. The...
- Tags: Sun StorEdge, Sun Microsystems Inc., Monitoring, Linux, RAID, Storage, UNIX, Operating Systems, Open Source, Software, Hardware
- White papers 2005-04-01
- Investment Bank Cuts Costs, Simplifies Data Storage
- When the San Francisco-based investment banking firm of Thomas Weisel Partners needed a more manageable, cost-effective, and highly available storage environment, it replaced its old direct-attached storage DAS systems with a centralized storage solution that pairs Microsoft Multipath I/O technology with 3PAR Utility Storage. This case study explains how the...
- Tags: Bank, Data Storage, Investment, 3PARData Inc., Storage, Hardware
- Case studies 2005-08-01
- A RAKE Receiver With ICI/ISI Equalizer for CCK Wireless LAN Modem
- This paper proposes a new type of RAKE receiver for complementary code keying CCK codes, which is suitable for the multipath environment with large delay spread. As the delay spread is larger, Inter-Symbol Interference ISI and Inter-Chip Interference ICI generated due to multipath environments are increased. To handle the increasing...
- Tags: IEEE, ISI, Productivity
- White papers 2005-10-03
- 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
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