Search results for "Wireless mesh networks"

showing 4 items of 4 documents

A new Media Access Control layer Quality of Service multicast scheme for IEEE 802.11s based wireless mesh networks

2014

Inderscience Publishers; International audience; We propose a new Media Access Control (MAC) layer enabling Quality of Service (QoS) multicast scheme for IEEE 802.11s networks, where a unicast routing protocol called HWMP (Hybrid Wireless Mesh Protocol) is defined. The HWMP protocol is more adapted for best effort traffic, that's why its usage is not suitable for real time multimedia applications. The goal of our proposed mechanism is to take into account multicast communication under QoS constraints for the IEEE 802.11s mesh networks where no QoS multicasting has been defined. Our multicasting scheme handles QoS guarantee for real time applications. Indeed, our scheme is based on finding t…

Computer Networks and Communicationscomputer.internet_protocolComputer scienceDistributed computing[ INFO.INFO-NI ] Computer Science [cs]/Networking and Internet Architecture [cs.NI]Wireless mesh networksDistance Vector Multicast Routing ProtocolQoSHWMP[INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI]Multicast addressIEEE 802.11sXcastMAC layer multicastPragmatic General Multicastreal time multimedia applications.Protocol Independent MulticastMulticast[INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI]business.industryComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSMAC routingSource-specific multicastreal time multimedia applicationsIP multicastbusinesscomputerComputer network
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Modeling and verifying the OLSR protocol using Uppaal

2014

Masteroppgave i Informasjons- og kommunikasjonsteknologi IKT590 Universitetet i Agder 2014 Wireless Mesh Networks (WMNs) are a popular technology due to their exibility andself-organizing nature that provide support for broadband communication. They areused in a wide range of application areas, such as public transportation, tunnels, realtime racing car telemetry and emergency response communication. Route _nding andmaintenance, two important factors determining the performance of such networks,are provided using routing algorithms. The Optimized Link State Routing (OLSR)protocol is an example of such algorithms which is used in this study.One issue about this protocol is that its speci_cat…

IKT590Wireless Mesh Networks (WMNs) ;ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSVDP::Technology: 500::Information and communication technology: 550
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Self-configuring multipath intra-mesh infrastructure QoS based routing

2016

International audience; Multi-path routing concept was largely exploited in wireless networks to provide benefits such as fault tolerance, load balancing, performance improvement in terms of latency, etc. In this paper, we propose a multi-path routing based protocol named MP-IMRR (Multi-path Intra-Mesh infrastructure Routing protocol) to improve our previously defined QoS based routing protocol for wireless mesh networks (i.e. IMRR). MP-IMRR is defined in order to achieve better reactivity and faster recovery from eventual route failures than the IMRR protocol by adopting the backup routes concept. Besides, given the complexity increase while considering network management systems, we adopt…

Routing protocolDynamic Source RoutingPerformance Evaluation[ INFO ] Computer Science [cs]Computer scienceDistributed computingQoS routingEnhanced Interior Gateway Routing ProtocolWireless communicationnetwork simulator ns-3Wireless Routing Protocol02 engineering and technologyRouting protocolsBandwidth0202 electrical engineering electronic engineering information engineeringMP-IMRRmultipath routing based protocolWireless Mesh Network[INFO]Computer Science [cs][ SDV.IB ] Life Sciences [q-bio]/BioengineeringComputer architectureMP-IMRR protocolRoutingStatic routingZone Routing Protocolautonomic computing paradigmQoS based routing protocolbusiness.industrymultipath intramesh infrastructure routing protocolComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSmultipath channels020206 networking & telecommunicationsMulti-path routingwireless mesh networksbackup routes conceptLink-state routing protocolself-configuring infrastructurequality of service020201 artificial intelligence & image processingHazy Sighted Link State Routing ProtocolSelf-configuring[SDV.IB]Life Sciences [q-bio]/Bioengineeringbusinessnetwork management systemsComputer network
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Supporting a Pseudo-TDMA Access Scheme in Mesh Wireless Networks

2013

Wireless mesh networks appear a promising solution for pro- viding ubiquitous low-cost wireless access, but cannot rely on simple CSMA access protocols because of the critical inefficiencies that arise in topologies with hidden nodes. To overcome these limitations, some important protocol extensions based on synchronization and reservation mechanisms have been ratified. In this paper we show that an alternative approach to the standardiza- tion of new features and signaling messages for mesh networks can be the utilization of programmable nodes able to execute different MAC protocols programmed on the fly. Signaling messages are used only for disseminating the new protocol among the nodes. …

Wireless mesh networkHidden node problembusiness.industryComputer scienceWireless networkSettore ING-INF/03 - TelecomunicazioniDistributed computingComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSOrder One Network ProtocolShared meshKey distribution in wireless sensor networkswireless mesh networks synchronization pseudo-TDMA random accessbusinessComputer networkIEEE 802.11sWireless distribution system
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