Wireless mesh network

About: Wireless mesh network is a research topic. Over the lifetime, 13600 publications have been published within this topic receiving 221035 citations. The topic is also known as: WMN.

Applications of Geometric Algorithms to Reduce Interference in Wireless Mesh Network

Abstract: In wireless mesh networks such as WLAN (IEEE 802.11s) or WMAN (IEEE 802.11), each node should help to relay packets of neighboring nodes toward gateway using multi-hop routing mechanisms. Wireless mesh networks usually intensively deploy mesh nodes to deal with the problem of dead spot communication. However, the higher density of nodes deployed, the higher radio interference occurred. This causes significant degradation of system performance. In this paper, we first convert network problems into geometry problems in graph theory, and then solve the interference problem by geometric algorithms. We first define line intersection in a graph to reflect radio interference problem in a wireless mesh network. We then use plan sweep algorithm to find intersection lines, if any; employ Voronoi diagram algorithm to delimit the regions among nodes; use Delaunay Triangulation algorithm to reconstruct the graph in order to minimize the interference among nodes. Finally, we use standard deviation to prune off those longer links (higher interference links) to have a further enhancement. The proposed hybrid solution is proved to be able to significantly reduce interference in a wireless mesh network in O(n log n) time complexity.

Mesh WLAN networks: concept and system design

Abstract: In recent years WLAN technology has become the common wireless access technology for mobile computing. Additional to infrastructure access to WLAN networks, peer-to-peer and mesh networking are currently gaining in interest. Mesh networking techniques using WLAN are being standardized in IEEE 802.11s. This article describes use cases, the main technical issues, and a set of potential solutions for mesh network development. Furthermore, an overview of the standardization activities in IEEE 802.11s is presented. The key technical aspects of mesh networks identified are topology creation, routing, medium access control, security, quality of service, and power efficiency

Security Issues in Wireless Mesh Networks

Abstract: Wireless mesh network (WMN) is a new wireless networking paradigm. Unlike traditional wireless networks, WMNs do not rely on any fixed infrastructure. Instead, hosts rely on each other to keep the network connected. Wireless Internet service providers are choosing WMNs to offer Internet connectivity, as it allows a fast, easy and inexpensive network deployment. One main challenge in design of these networks is their vulnerability to security attacks. In this paper, we investigate the principal security issues for WMNs. We study the threats a WMN faces and the security goals to be achieved. We identify the new challenges and opportunities posed by this new networking environment and explore approaches to secure its communication.

Multi-path radio transmission input/output devices, network, systems and methods with on demand, prioritized routing protocol

Abstract: Devices, networks, systems and methods for coordinating industrial control and monitoring communications on multi-path radio frequency transmission mesh networks include establishing path metrics allowing a respective comparison of a plurality of available communication paths between neighboring radios communicating in the mesh network. Replies to route requests may be delayed based on the path metrics of available paths for message transmission to ensure that the best available connection routes through the mesh network can be understood and utilized.