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In a network, bridging nodes are those nodes that from a topological perspective, are strategically located between highly connected regions of nodes. Thus, they have high values of the Bridging Centrality (BC) metric. We recently introduced the Localized Bridging Centrality (LBC) metric, which can identify such nodes via distributed computation, yet has an accuracy equal to that of the centralized...
Wireless Mesh Network is mainly used to obtain Internet access, so most of the traffic converges to gateways. Due to the nature characteristic of WMN traffic model, gateways unavoidably become the bottleneck of the whole network. An anycast-based gateway selection model was proposed in this paper to solve the gateway selection problem. In this model, all the gateway nodes were abstracted as an anycast...
Recently, the Wireless Mesh Networks (WMNs) has gained momentum as a new broadband internet access technology, where most of the traffic is heading towards the gateway, as users need to access the internet and other wired resources. However, increasing the network capacity is still an open issue. One way to increase the network capacity is to equip each mesh router with multi-radio and turn each interface...
Wireless mesh networking (WMN), the static mesh routers (MRs) cooperatively relay each other packets to the Internet Gateway (IGW). The routing protocols assume all the nodes in the network to be non-malicious. However, the open architecture of WMNs paves way to malicious attackers who can exploit hidden loopholes in the routing protocol. In this paper, we mainly focus on the vulnerability of the...
In recent years wireless mesh networks have been deployed and grown in popularity in many metropolitan areas. The deployment of such networks has allowed clients to gain access to publicly available broadband networks. The lack of standards and support for multicasting over wireless mesh networks makes this area very challenging as well as providing much scope for improvement. For first time in this...
There is an increasing acceptance for Wireless Mesh Networks (WMN) as the potential `last-mile' access technology running media-rich applications with stringent quality of service (QoS) requirements. As WMNs are envisioned to provide high bandwidth broadband services to a large community of users, the Internet Gateway which acts as a central point of attachment for the mesh routers is likely to be...
Wireless mesh network is a new broad bandwidth distributing wireless access network system. It can access Internet through gateway nodes. When network load of access is heavy or network size is expanding, one gateway node will become a bottleneck of the access network because of the serious congestion of a large number of data packets transmitted to the gateway node. Based on the research of DSR (dynamic...
The co-existence and integration of different wireless networks will significantly advance the provision of ubiquitous and high-performance Internet services to mobile users. In this paper, we present HAWK, a real-world implementation of high performance heterogeneous wireless networks for ubiquitous Internet access. We have built a fully featured testbed comprised of different wireless networks,...
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...
WMNs are low-cost Internet access networks built on cooperative routing over a backbone composed of stationary wireless routers. In hybrid mesh WMNs both client mesh and backbone has ability to forward the data to destination. Many ad hoc routing protocols have been adapted to work in WMN without considering the differences between both technologies. Due to the differences between ad hoc network and...
Mesh networks are characterized by the use of multiple channels and multiple interfaces to improve the system throughput. A multi-interface multi-channel wireless mesh network consists of a number of stationary or minimally mobile wireless routers, forming a multi-hop Internet backbone. Previous research has revealed that single channel IEEE 802.11 MAC protocols are not suitable for multihop network...
Wireless mesh network (WMN) has gained popularities due to its quick and inexpensive ways to access to the Internet. While the traditional wireless network uses single access point for data transmission, WMN uses multiple radios for simultaneous transmission. However, WMN may have poor performance during the transmission of TCP. TCP congestion control mechanism in WMN causes packet delay. Having known...
A wireless mesh network (WMN) provides a flexible and low-cost solution for end users to connect to the Internet through its multi-hop infrastructure. For such a network to proliferate, a fundamental problem that must be solved is to ensure the fair allocation of network bandwidth to all participating parties. This paper proposes a cross-layer design for achieving end-to-end maxmin fairness in WMNs...
Choosing an optimal placement of mesh points (MPs) to maximize the network throughput is one of the key concerns in building a wireless mesh network (WMN). The routing protocol used in the WMN, which governs the traffic distribution over the network, also affects the network throughput. Therefore, in this paper, we take account of the multi-path routing protocol used in a WMN in finding the optimal...
In wireless mesh networks (WMNs) traffic is routed from mobile clients through a multihop wireless backbone to and from Internet gateways (IGWs). Because of their limited number, IGWs become the major traffic bottlenecks. The purpose of this work is to explore the benefits of introducing load-dependent routing metrics to increase WMN capacity and performance. We use weighted shortest path routing...
Wireless Mesh Networks (WMNs) have revolutionized the provisioning of broadband wireless Internet service to a community of users. A group of static mesh router automatically interconnect themselves to form a Web of connection and employ multi-hop forwarding to connect to the Internet Gateway (IGW). Thus, we see that is critical to establish and ensure a collaborative framework at the MRs. All existing...
In public places such as banks, hospitals and schools which require higher safety, when the emergent circumstances of serious natural disasters or terrorist attacks are happened, the traditional means of communication rely on the base station were often restricted seriously by the environment and lots of difficulties are created to the rescue work. To counter this limitation, an emergency response...
This paper addresses the interference and load imbalance problems in multi-radio infrastructure mesh networks where each mesh node is equipped with multiple radio interfaces and a subset of nodes serve as Internet gateways. To provide backbone support, it is necessary to reduce interference and balance load in wireless mesh networks (WMNs). Therefore, this paper proposes a Load-aware routing protocol...
In recent years, wireless mesh network (WMN) is a compelling topic to many network researchers due to its low cost in deployment, simplicity in installation and robustness in operation. However, existing routing protocols designed for MANET can not work efficiently in WMN because backbone in WMN formed by Mesh Router has very low mobility and are not put under power and memory constraint. In addition,...
Wireless mesh networks (WMNs) have emerged as one of the major technologies for 4G high-speed mobile networks. In a WMN, a mesh backhaul connects the WMN with the Internet, and mesh access points (MAPs) provide wireless network access service to mobile stations (MSs). The MAPs are stationary and connected through the wireless mesh links. Due to MS mobility in WMNs, mobility management (MM) is required...
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