SWMPT: Securing Wireless Mesh Networks Protocol Based on Ticket Authentication

Wireless mesh network (WMN) consists of two parts: mesh access points which are relatively static and energy-rich devices, and mesh clients which are relatively dynamic and power constrained. In this paper, we present a new model for WMN end-to-end security which divides authentication process into two phases: Mesh Access Point which is based on asymmetric cryptography and Mesh Client which is based on a server-side certificate such as EAP-TTLS

Securing End-to-End Wireless Mesh Networks Ticket-Based Authentication.

Hybrid wireless mesh network (WMN) consists of twotypes of nodes: Mesh Routers which are relatively static andenergy-rich devices, and Mesh Clients which are relativelydynamic and power constrained devices. In this paper we presenta new model for WMN end-to-end security which divideauthentication process into two phases: Mesh Access Point phasewhich based on asymmetric cryptography and Mesh Client phasewhich based on a server-side certificate such as EAP-TTLSand PEAP

Securing End-to-End Wireless Mesh Networks Ticket-Based Authentication

Hybrid wireless mesh network (WMN) consists of two types of nodes: Mesh Routers which are relatively static and energy-rich devices, and Mesh Clients which are relatively dynamic and power constrained devices. In this paper we present a new model for WMN end-to-end security which divide authentication process into two phases: Mesh Access Point phase which based on asymmetric cryptography and Mesh Client phase which based on a server-side certificate such as EAP-TTLS and PEAP

Nearmesh: network environment aware routing in a wireless mesh network for emergency-response

Wireless Mesh Networks (WMNs) employ hybrid distributed mobile networks with instant deployment and capabilities Such as: self_healing, self_organization and self_configuration. These abilities make WMNs a likely technology for incident communication. An Incident Area Network (IAN) requires a reliable and efficient routing path in an environment, where infrastructure-based communications have been destroyed. Routing awareness plays a significant part in this situation to deliver dynamic disaster facilities. Though, most of the proposed aware routing schemes do not entirely exploit the characteristics of WMNs. In this article, we propose a network environment-aware routing scheme for emergency response (NEARMesh) in WMNs, which employs a network routing information map to select the optimized path, based on cooperative consideration of route awareness information. This scheme is carried out and verified in NCTNus simulator. Imitation outcomes clearly display that the suggested scheme can enhance the network performance by maintaining a high delivery ratio with low latency while reducing the energy ingesting by minimizing network expenses

Active Path Updation for Layered Routing (APULAR) in Wireless Mesh Networks

One of the major research issues in the Wireless Mesh Network (WMN) is routing. The routing protocols of ad-hoc networks can be applied for WMN, but have limited success because, ad-hoc networks are mainly structure less networks with highly dynamic topology and harmonized nodes, where WMN are relatively static network with two types of nodes, one fixed mesh routers and mobile clients. In layered routing protocol, source node initiates a path establishing process whenever path breaks. It will cause huge control packets and increase packet loss. This is not an ideal method in WMN where every nodes rather than source and destination in the path are motionless. One way of overcoming this is by initiating the local route repair by destination node.. In this paper, we propose an active path updating procedure (APULAR) for quickly updating the broken path to recover from packet loss. Moreover, to improve throughput and to reduce the co-channel interference, we use multiple interface with multi channels. We are considering 4-hop as an interference range and will use fixed channel assignment within the mesh routers to reduce the inter flow interference. Our procedure is simulated in NS2 and compared with AODV and Infrastructure Wireless Mesh Routing Architecture (IWMRA). Simulation results show that our protocol performs better than IWMRA and AODV in key performance metrics like packet delivery ratio, control overhead, average throughput and end-to-end delay. Keywords: Active path repair, channel assignment, multi channel routing, and wireless mesh network routing

Self-Configuration and Self-Optimization Process in Heterogeneous Wireless Networks

Self-organization in Wireless Mesh Networks (WMN) is an emergent research area, which is becoming important due to the increasing number of nodes in a network. Consequently, the manual configuration of nodes is either impossible or highly costly. So it is desirable for the nodes to be able to configure themselves. In this paper, we propose an alternative architecture for self-organization of WMN based on Optimized Link State Routing Protocol (OLSR) and the ad hoc on demand distance vector (AODV) routing protocols as well as using the technology of software agents. We argue that the proposed self-optimization and self-configuration modules increase the throughput of network, reduces delay transmission and network load, decreases the traffic of HELLO messages according to network’s scalability. By simulation analysis, we conclude that the self-optimization and self-configuration mechanisms can significantly improve the performance of OLSR and AODV protocols in comparison to the baseline protocols analyzed

A scheme for efficient peer-to-peer live video streaming over wireless mesh networks

Peers in a Peer-to-Peer (P2P) live video streaming system over hybrid wireless mesh networks (WMNs) enjoy high video quality when both random network coding (RNC) and an efficient hybrid routing protocol are employed. Although RNC is the most recently used method of efficient video streaming, it imposes high transmission overhead and decoding computational complexity on the network which reduces the perceived video quality. Besides that, RNC cannot guaranty a non-existence of linear dependency in the generated coefficients matrix. In WMNs, node mobility has not been efficiently addressed by current hybrid routing protocols that increase video distortion which would lead to low video quality. In addition, these protocols cannot efficiently support nodes which operate in infrastructure mode. Therefore, the purpose of this research is to propose a P2P live video streaming scheme which consists of two phases followed by the integration of these two phases known as the third phase to provide high video quality in hybrid WMNs. In the first phase, a novel coefficients matrix generation and inversion method has been proposed to address the mentioned limitations of RNC. In the second phase, the proposed enhanced hybrid routing protocol was used to efficiently route video streams among nodes using the most stable path with low routing overhead. Moreover, this protocol effectively supports mobility and nodes which operate in infrastructure mode by exploiting the advantages of the designed locator service. Results of simulations from the first phase showed that video distortion as the most important performance metric in live video streaming, had improved by 36 percent in comparison with current RNC method which employs the Gauss-Jordan Elimination (RNC-GJE) method in decoding. Other metrics including frame dependency distortion, initial start-up delay and end-to-end delay have also improved using the proposed method. Based on previous studies, although Reactive (DYMO) routing protocol provides better performance than other existing routing protocols in a hybrid WMN, the proposed protocol in the second phase had average improvements in video distortion of l86% for hybrid wireless mesh protocol (HWMP), 49% for Reactive (Dynamic MANET On-Demand-DYMO), 75% for Proactive (Optimized Link State Routing-OLSR), and 60% for Ad-hoc on-demand Distance Vector Spanning-Tree (AODV-ST). Other metrics including end-to-end delay, packet delay variation, routing overhead and number of delivered video frames have also improved using the proposed protocol. Finally, the third phase, an integration of the first two phases has proven to be an efficient scheme for high quality P2P live video streaming over hybrid WMNs. This video streaming scheme had averagely improved video distortion by 41%, frame dependency distortion by 50%, initial start-up delay by 15% and end-to-end delay by 33% in comparison with the average introduced values by three other considered integration cases which are Reactive and RNC-GJE, Reactive and the first phase, the second phase and RNC-GJE

High performance AODV routing protocol for hybrid wireless mesh networks

Hybrid Wireless Mesh Networks are multi-hop networks consisting of two types of nodes, Mesh Routers and Mesh Clients. Mesh Routers are more static and less resource constrained than mobile Mesh Clients, and form the wireless backhaul of the network. Routing in Hybrid Wireless Mesh networks is a challenging task as both type of nodes participate in the routing and forwarding of packets. In this paper, we present extensions to the Ad-hoc On-demand Distance Vector (AODV) routing protocol with the aim to exploit the heterogeneity of Hybrid Wireless Mesh Networks. As demonstrated via extensive simulations, our extensions achieve a more than 100% improvement over the standard multi-radio AODV in terms of key performance metrics such as packet delivery ratio, routing overhead and latency