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A plethora of (secure) routing protocols exists for wireless multihop networks. These protocols are mostly tailored to meet the performance and security requirements of specific application scenarios. As a result, the protocols cannot easily be adapted to novel application demands, organically growing networks, etc. We argue that the modular design of routing protocols and security mechanisms can...
A Gateway Based Gray Hole Detection (GBGHD) algorithm in Wireless Mesh Networks (WMN) is proposed, which utilizes the architecture character of combination of centralized control and distributed control of WMN. GBGHD algorithm makes the gateway analyze and synthesize the monitoring information collected by the wireless nodes and decrease the routing overhead by piggybacking technology without bringing...
Wireless mesh networks (WMNs) have became the focus of many researchers as a promising technology for a broad range of applications due to their self-organizing, self-configuring and self-healing capability, in addition to their low equipments and deployment cost. WMNs may exist in the absence of a central infrastructure taking the form of a MANET. However on the other hand, they may exist as networks...
Wireless Mesh Network (WMN) is an emerging technology that has played an important role in the wireless communication scenario. Wireless Mesh Networks are becoming popular as a way of providing Internet access in a cost-effective, easy, and fast manner. However, due to their intrinsic characteristics such as open medium, WMNs are vulnerable to various types of attacks, which aim at disrupting their...
Wireless Sensor Networks (WSNs) is an emerging field of engineering with various applications. They have emerged as a new class of large scale networks of embedded systems with limited communication, computation and energy resources. Recently adopted IEEE 802.15.4 standards for Low-rate Wireless Personal Area Network (LR-WPAN) are most extensively used communication platform for WSNs. Conventional...
In this paper we devise efficient optimization techniques to find optimal routing and scheduling policies for wireless ad hoc networks in the presence of multi-user interference and cooperative transmissions. Our focus is to assess the impact of interference among distinct data flows on optimal routing paths and related transmission schedules. In our reference scenario, all nodes have a single antenna...
Dynamic Source Routing (DSR) was one of the first proposed protocols for routing in Mobile Ad-hoc Networks and is among the few that were ratified by the IETF. Despite its source routing overhead, the protocol exhibits particular properties that make it an optimal choice for multi-path routing where multiple paths are discovered for each destination. The alternative paths can either be stored for...
Wireless mesh networks (WMN) represent a type of mobile ad-hoc networks. These networks are very important in providing the Internet access to fixed and mobile terminal equipment. The main problem in WMNs (regarding to mesh routers and mesh clients) is a routing protocol, especially because it has to enable the access to network for both mesh and conventional clients. Access to Internet for wireless...
How to select a proper access gateway from the several gateways of a wireless mesh networks(WMN) to connect to the Internet is one of the critical technologies which can improve the performances of WMN. A multi-path multi-gateway WMN anycast routing protocol based on an ant colony optimization (MMAMBA) was presented. In this protocol, gateway selection was taken as an anycast service, the distributed...
The development of distributed application in mobile ad hoc network faces great challenges. Accordingly, it has important significance to introduce the content-based publish/subscribe middleware. First this paper defines subscription language and event model containing event type domain. Then it proposes a novel content-based routing protocol which establishes an optimized dynamic multicast mesh and...
Wireless Mesh Networking (WMN) emerges as a new technology to reshape the broadband industry towards a more efficient and cost effective connectivity. The WMN has been the ideal technology for the next generation wireless community networks that offers efficient digital engagements and an ideal platform for promoting social partnerships over both urban and rural communities. This is essential for...
IEEE 802.11 is one of the wireless network MAC/PHY protocols. Though IEEE 802.11 a/b/g offers more than one non-overlapping channels, IEEE 802.11 a/b/g uses just one channel for communication. These days, NICs(Network Interface Cards)'s cost has been decreasing and its performance has been increasing. Therefore, the mobile nodes are able to use more than one interface and many channels simultaneously...
For the intrinsic characteristics cause several vulnerabilities of MANET, anonymous routing protocol attracts much more attention in secure mobile ad hoc networks for the purposes of security and privacy concerns. Until recently, lots of anonymous routing protocols have been proposed. However, most of them are single path or use one path at a time or can not thwart both the passive attacks and active...
Routing is a general task, yet the implementation of routing protocols requires specific operating system related knowledge. The developer has to deal with particular kernel internals that might have severe side effects. This is especially true for reactive and hybrid protocols where routing and forwarding are heavily intermixed. Furthermore, novel routing protocols require features that are not provided...
Cluster based routing protocols have the benefit of reducing routing overload and increasing performance in the transmission delay and throughput. In this paper, on the basis of CBRP we propose a new protocol called KHCBRP (K-Hop Cluster Based Routing Protocol) which enlarges the range of electing clusterhead to K hops and introduces the concept of metric of constraint degree to restrain the clusterhead...
Security decides whether Ad hoc network can be fully utilized. Since Ad hoc network isn't dependent on fixed infrastructure, its secure architecture is facing new challenges, and the security of its routing protocol is a very important issue. This paper first introduces the design of the secure routing protocol and its security weaknesses, then proposes an improved secure routing protocol and presents...
As a result of the nature of routing algorithm in a wireless mesh networks (WMNs), and although there is more than one hotspot access point (HSAP) in a WMN, the traffic load of each HSAP is quite different. A HSAP may be very busy during a particular period while the others are in very light loads, in consequence, of the inherent characteristic of routing algorithm of WMN. A traffic load concentrates...
In anycast routing the packet is routed to anyone of the anycast group members. Anycast allows supporting many services and can significantly improve network performance of ad hoc networks. Unicast protocols have been extended to support anycast routing, however, these protocols consider solely the shortest path routing. The protocols based on a theory of potential fields have been proposed to improve...
Wireless Mesh Network (WMN) is an emerging technology that has developed a lot these years. WMN has the feather of self-organization, distributed structure. The main topological characteristic of WMN is that there are only one or several node connecting to the infrastructure network as gateway and all other nodes connect to the gateway through the relay of the neighboring nodes, and then connect with...
A wireless sensor network (WSN) has features that fit into several classes of wireless networks (e.g., mesh, ad hoc, and mobile ad hoc networks) and, at the same time, features that are unique to it. These exceptional characteristics place many demands on the WSN routing protocol. For instance, the routing protocol must assure uniform dissipation of energy across the network, quickly converge irrespective...
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