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Wireless Mesh Network (WMN) is one of the most vibrant field among different wireless communication network technologies. WMN can replace wireless infrastructure network. Self-organization, self-configuring and self-healing natures of WMN dynamically provide solution for high-speed internet access. WMN is highly cost-effective and provides scalability and flexibility. As a result of its open medium...
In recent years, wireless mesh networks based on 802.11 technologies have been deployed in real environment with huge interesting applications. Beside their advantages, some critical technique challenges have been remained because they heritage some disadvantage characteristics of ad hoc networks. In which, routing issue is the most challenge due to its importance and complexity related with network...
In video surveillance and monitoring systems based on wireless mesh networks, large volumes of multimedia data with different priorities and time demands are generated by video cameras and wireless sensors. Hence, one of the key issues is how to alleviate network congestion for highly reliable transfer of multimedia data towards gateways. This paper proposes a solution for utilizing multiple gateways...
Wireless HART technology provides a robust wireless protocol for the full range of process measurement, control, and asset management applications. Wireless HART is a wireless mesh network communications protocol for process automation applications.
Unlike wired networks, the configuration and the behavior of wireless networks are heavily dependent on many environmental factors. While this makes it more difficult to build a wireless network testbed whose behavior is controllable, it also makes the availability of such a testbed all the more desirable. Indeed, the difficulties in building a good wireless mesh testbed belie the fact that most research...
Vehicular communications are becoming a reality under the push of increased transportation safety requirements and huge investments of several actors in the field like car manufacturers and Public Transport Authorities. As a consequence, the building blocks of the ”Vehicle Grid” (radios, Access Points, spectrum, standards, etc.) will soon be in place enabling a broad gamut of applications ranging...
As a combination of ad hoc networks and wireless local area network (WLAN), the wireless mesh network (WMN) provides a low-cost convenient solution to the last-mile network-connectivity problem. As such, existing route protocols designed to provide security and privacy protection for ad hoc networks are no longer applicable in WMNs. On the other hand, little research has focused on privacy-preserving...
The schemes detecting and mitigating routing misbehavior in other wireless networks are not suitable for Wireless Mesh Network (WMN), whereas the researchers do not pay much attention to WMN's routing misbehavior. We present a new scheme for WMN in this paper. Differing from existing schemes, mobile client nodes do not add new functions, whereas mesh routers detect and mitigate routing misbehavior...
Wireless mesh network is a new type of network paradigm in which each node communicates to others to enhance network reliability and performance. Routing in wireless mesh network is a challenging task. Despite from the traditional routing, field based routing uses a little information to route the packets. Due to this characteristic, field based routing algorithms are inexpensive and robust, but such...
In order to establish a trusted and secure wireless mesh network, routing protocols should not only ensure the integrity, confidentiality and authentication, but also take into consideration the fact that the application of routing strategies should not impact the performance of routing protocols to a severe extent. This paper adopts Node's Trust as a routing parameter, and some improvements are made...
We investigate the risk associated with multihop wireless communications due to eavesdropping. When the same message traverses cross a multihop wireless network, potential security leaks may occur because of intelligent and collaborative eavesdroppers even if all individual links from source to destination have signal leakage below a security threshold. We termed this phenomenon ??cumulative security...
In this paper, we present experimental results from testbed implementation of a simple monitoring assisted local route recovery scheme for wireless mesh networks (WMN). The scheme exploits the broadcast nature of wireless transmissions at special routers with added monitoring functionalities. These routers passively listen to the transmissions in the neighborhood and compare the forwarding behavior...
Security association established by authentication schemes enables wireless networks resilient from external attacks. However, an enhanced security guarantee will influence network performance more or less. In this paper, we observe the detailed actions of a security association in the procedure of establishment and shift, in a wireless mesh network (WMN), i.e. a typical multi-hop network. To investigate...
Wireless Mesh Networks are a scalable and cost-effective solution for next-generation wireless networking. In the present work, we consider the Round Weighting Problem (RWP) which solves a joint routing and scheduling problem to satisfy a given demand subjected to the multi-access interferences. We propose a multiobjective approach that deals with two objectives. The first one is to balance the load...
This paper proposes a fast forward medium access control protocol (FFMAC) for quality-of-service (QoS) guarantee in multihop IEEE 802.11s wireless mesh networks with multiple channels. To the best of our knowledge, the proposed protocol is the first one which considers the multihop and multichannel issues simultaneously. It provides higher priority for real-time applications, while remaining the distributed...
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