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In order to establish emergency communication networks for fire fighting in underground constructions, new Mesh network technology and its characteristics are introduced, also put forward the technical and tactical indicators of Air Mesh400 internet radio stations, simulated battle shows that the Mesh network solve communication QoS and guarantee stabile performance, meeting the needs of the fire...
The research and development of the wireless mesh networks (WMNs) now still popular. P2P was an old technique, but it is coming back for building an virtual overlay network on top of physical network. Open Chord as varian of Chord is a tool based on distributed hash table that can be used to build overlay. In swarm intelligence presented the particle swarm optimization (PSO) algorithm. One application...
Anypath routing, a new routing paradigm, has been proposed to improve the performance of wireless networks by exploiting the spatial diversity and broadcast nature of the wireless medium. In this paper, we study the problem of finding an anypath subject to multiple (K) constraints, which has been proved to be NP-hard. We present a polynomial distributed K-approximation routing algorithm. Our algorithm...
Despite the significative differences between ad hoc networks and Infrastructure Wireless Mesh Networks (iWMNs), the routing schemes designed specifically for the formers have been considered as a potential solution for the routing dilemma in the latter; however, the performance and effects of such approach have not been deeply studied. In this paper we extend some features of popular reactive (AODV)...
Mobile Wireless Mesh Networks (MWMNs) not only can provide high-bandwidth services for a large number of users, but also offers a good solution to the last-mile problems. However, the abundant net flow resulted from the great number of users may lead to the network traffic jam. To solve this problem, we proposed an Adaptive Situation-Aware (ASA) routing metric. We also designed a load balance scheme...
One of the most important issues in Smart Grid is to provide consumers with the knowledge of their energy usage, as well as allowing the utility to monitor and control the electric system components with real time status. This would require the design of a network architecture that is capable of providing secure and reliable two-way communication from meters to other Smart Grid domains. While networking...
This paper focuses on the development of an IEEE 802.11s-based WLAN mesh router, which supports a multichannel with multi-interface. In this work, we implemented not only the single path routing based AODV defined in IEEE 802.11s HWMP, but also a multipath routing which extended the standard. The multipath routing was intended to reduce the recovery time and the control message overhead when the routing...
Utilizing multi-interfaces and multi-channels (MIMC) is essential in increasing capacity and performance of emerging wireless mesh networks. However, the current IEEE 802.11s draft which is a standardization activity of the WLAN based mesh network does not sufficiently consider these capabilities. This may lead to poor performance of the network in terms of throughput and scalability. In this paper,...
Many dynamic metrics for wireless mesh networks (WMNs) to improve communication quality are proposed so far. However, all of them have possibility to create temporary routing loops which may cause severe congestion and disruption of communications. In order that WMNs are regarded as a reliable infrastructure of the next generation, such routing loops are strongly desired to be liminated since they...
Endowing mesh routers with multiple radios is a recent solution to improve the performance of wireless mesh networks. The approaches proposed in the literature to solve the problem how to assign channels to radio have mainly focused so far on reducing interference or maximizing the throughput. To the best of our knowledge, none of such approaches attempted to save network resources for the purpose...
Multipath routing has been a promising solution to improving reliability and system throughput for wireless mesh networks. However, existing schemes designed for system throughput improvement suffer the route-coupling problem (i.e., the determined multiple paths originating from the same source node typically stay very close to the shortest path to the gateway) so that the improvement ratio may not...
Peer selection strategy is one of the major challenges towards efficient peer-to-peer (P2P) system in wireless mesh networks (WMNs). When peers choose their own utility-maximizing strategies for coalition and peer formation, the solution is always sub-optimal. Peer formation, based on only application layer information, also results in inefficient use of network bandwidth. When multiple recipient-peers...
Solar powered wireless mesh nodes must be provisioned with a solar panel and battery combination that is sufficient to prevent node outage. When such a network is deployed, there are usually restrictions in the way the nodes can be positioned, and this results in a time-varying and node-dependent attenuation of the available solar energy. Unfortunately, conventional resource provisioning methodologies...
Wireless Mesh Networks (WMNs) have been widely deployed as a new communication paradigm that can provide innovative services for a community (neighborhood, campus, etc.). WMNs are capable to provide both delay-sensitive services such as Voice over Internet Protocol (VoIP) and delay-insensitive services such as peer-to-peer file sharing. Network routing protocols in WMNs often employ the minimum-hops...
Traditional multicast routing algorithms such as shortest path tree (SPT) and minimum Steiner tree (MST) do not consider the wireless broadcast advantage or the underlying channel assignments in a multi-channel multi-radio (MCMR) wireless mesh network (WMN). We propose a multicast routing algorithm for MCMR WMNs that takes into account the above factors in order to minimize the amount of network bandwidth...
Wireless mesh networks (WMNs) have emerged as support for applications on various domains, such as military,financial and healthcare. Those applications claim for high level of both end-to-end performance and security. However, WMNs are naturally susceptible to security issues that can compromise network performance. This paper presents a cross-layer and adaptive scheme for balancing performance and...
Cognitive Radio (CR) is a new paradigm that enable nodes to exploit unoccupied frequency spectrum for transmissions. Cognitive Radio Networks (CRNs) have been proposed to enable wireless mesh networks to communicate via dynamic channels. Many existing research consider routing in static CRNs with relatively stable communication channel where the duration of the availability of the communication channel...
We consider anycast routing to improve the quality of communications in multi-gateway wireless mesh networks. A centralized gateway and route selection scheme is proposed that tries to maximize the end-to-end probability of success and minimize the end-to-end delay of all active traffic flows in the network. The proposed scheme employs a novel route quality metric that is based on the effects of interference...
Interference has been proven to have an effect on the performance in wireless mesh networks (WMN). Using multichannels can improve the performance of WMNs by reducing interference influence. In this paper, we study how to design a robust WMN for a set of mesh nodes, each with Q Networking Interface Cards (NICs) and pre-defined connection requests. Our scheme aims to construct an interference-aware...
Wireless Mesh Networks represent a promising technology to provide wireless Internet connectivity over a large community. This new technology not only allows a fast, easy and inexpensive network deployment, but also enables many new applications including community-scale peer-based communication or sharing of network resources and services. In this work, we propose an effective publish/subscribe communication...
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