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Judiciously assigning channels to a wireless mesh network can substantially enhance capacity of the network. One particular flavor of mesh network is that with a tree topology, which has the property that all traffic passes through one central point. Usually the allocation problem is linked to problems of routing, load, and measurements of interference. In this paper we take advantage of the restrictions...
Against large overhead of routing discovery and change of topology in Wireless Mesh network, a new node-disjoint multi-path routing algorithm of wireless Mesh network - NDOUTE is proposed. This algorithm is based on AOMDV, introducing the source route ideas of DSR. The new addition of “source routing sequence” and “broadcasting node table” in RREQ, RREP packet avoids the reverse routing loop, provides...
For tactical networks, rapid reconfiguration and recovery of network topology is highly required. In this paper, we propose an effective tactical network architecture with WMN(Wireless Mesh Network)-based backbone. To reduce the computational and maintenance complexities of tactical networks, a hierarchical architecture is considered in the proposed architecture. The proposed architecture is called...
Presently, the IEEE 802.11s task group is defining a set of specifications for a wireless mesh standard based on IEEE 802.11 standard. The mobility management is one of the critical operations of any 802.11 network. In this paper we propose an assistive system that can improve the re-association mechanism which takes place when a mobile device roams in a mesh network. This is an empirical study of...
Multihop wireless mesh networks have emerged as the next generation in wireless network technology. This is due to the advantages provided by the mesh network technology. WMNs provides ease of installation, cost effective deployments, high level of scalability, wide coverage area and capacity, network flexibility and self-configuration capabilities. However, despite these advantages, many research...
Hybrid wireless mesh protocol (HWMP) is consists of on demand routing protocol RM-AODV and pro-active routing based on tree-base routing. When a mesh portal exists as a gateway of a wireless mesh network, tree-based routing is very efficient in fixed mesh deployments. However, with the distance vector routing method, all mesh points need route metrics based on the network topology and many packets...
Wireless mesh networking has been a cost-effective technology that provides wide-coverage broadband wireless network services. However, security and privacy in this proliferated network environment have not been widely studied. In this work, we propose a cross-layer based anomaly intrusion detection system (IDS) to accommodate the integrated property of routing protocols with link information in wireless...
As wireless mesh networks become more popular, there exists a need to provide centralized management solutions, which facilitate network administrators to control, troubleshoot and collect statistics from their networks. Managing wireless mesh networks poses unique challenges due to limited bandwidth resources and dynamic channel quality. A robust management solution should function despite network...
Publish/subscribe (Pub/Sub) systems can disseminate information scalability. This systems also enable users to get only their interesting information in real time. We are planning demonstration experiments of Pub/Sub systems as a word-mouth information distribution service (WIDS)for users such as resident, shopper and traveler in Kobe,Japan, with the support of the Strategic Information and Communications...
Because of the instability of link quality, traditional network routing protocols, which are mainly based on the condition of "Best Path", can not work very well over wireless mesh networks. Forwarding packets along the "Best Path" may also induce load imbalance among nodes. This paper presents a novel routing protocol named HPRP (Hierarchical Probabilistic Routing Protocol) for...
Wireless Mesh Networks (WMNs) are dynamically self-organized and self-configured, with the nodes in the network automatically establishing an ad hoc network and preserving the mesh connectivity. There are several features which might help to design an efficient routing protocol suitable for wireless mesh networks such as improved performance metrics, link or path optimization, mobility management,...
In these days, IEEE802.16 protocol is being developed and in the next years, 802.16 modems will be used in every house to connect to the Internet through base-stations in both urban and rural areas. Since user bandwidth for connection to the Internet is limited, a large fraction of each modempsilas bandwidth is not used. In this paper, we propose an architecture to construct a public peer-to-peer...
In this paper we present a research project of the research council of St-Joseph University (USJ) at its faculty of engineering (ESIB) in Beirut, Lebanon, in collaboration with professors at INRS-EMT, Montreal Canada. This project aims at addressing the issues of deployment of a Wireless Mesh Network (WMN) on parts of the Lebanese territory, supported by an already installed dense infrastructure of...
In this paper, we present our design and implementation of load-balanced gateway discovery routing protocol called LBGD-AODV. A gateway node in a wireless mesh network acts as bridge between mesh routers and external network in order to provide services such as broadband. We observed in our SwanMesh testbed that a single gateway can only serve up to a limited number of hops due to noticeable throughput...
In a wireless mesh network, the traffic is aggregated at mesh router and most of them forwarded towards the Internet through GW (Internet gateway). Thus easily leads to a bottleneck for network performance at GW. Aimed to this problem ,we firstly treated the GW and mesh router as the alike node equivalently. Then used the logarithm-normal distribution model of shadow affect in wireless communication...
Wireless Mesh Networks (WMNs) is a promising technology for backhaul wireless connectivity in user premises due to its multi-hop nature, multi-radio multi-channel capabilities and stable power supplies. With proliferation of new and advanced access technologies, future WMN's will bean integrated paradigm to provide seamless and ubiquitous connectivity to multi interface end user devices. Co-existence...
The environment monitoring system of household security robot is designed and implemented based on wireless mesh networks, which are used for monitoring temperature and humidity, gas leaking, fire and housebreaking in family. New tree routing and agent mechanism are proposed to find wireless sensor nodes and forward data. A set of design requirements are developed that cover the hardware design of...
This work proposes MARA, a joint method for automatic rate selection and route quality evaluation in wireless mesh networks. This method targets at avoiding the problem of inaccurate link quality estimates, common to main existing proposals of multi-hop wireless routing metrics. In this proposal, the statistics collected by the routing protocol are used by the rate adaptation algorithm to compute...
In this paper, we propose a path metric called multi-radio achievable bandwidth (MPvAB) to accurately capture the impacts of inter/intra-flow interferences and space/channel diversity along a path. We consider a practical scenario that an end-to-end path may consist of both multi-radio hops and single-radio hops, where different channels do not interfere with each other but interferences exist within...
In this paper, we present a new routing paradigm that generalizes opportunistic routing in wireless mesh networks. In multirate anypath routing, each node uses both a set of next hops and a selected transmission rate to reach a destination. Using this rate, a packet is broadcast to the nodes in the set and one of them forwards the packet on to the destination. To date, there is no theory capable of...
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