wireless mesh network


Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.

wireless mesh network

(1) A Wi-Fi network that uses multiple units. See Wi-Fi mesh network.

(2) A network that relies on all nodes to propagate signals. Although the wireless signal may start at a base station (access point) attached to a wired network, a wireless mesh network extends the transmission distance by relaying the signal from one computer to another. Used on the battlefield to provide path diversity, it is also used for sensor networks and personal computers. See mobile ad hoc network, 802.11 and wireless LAN.


A Wireless Mesh for Users
When laptops are set up in a wireless mesh, they act as routers for each other.







(3) A network that provides Wi-Fi connectivity within an urban or suburban environment. It comprises "mesh routers," which are a combination base station (access point) and router in one device. Also called "mesh nodes," they are typically installed on street light poles, from which they obtain their power.

Access Point and Backhaul Router
Like any Wi-Fi access point, the access point in the mesh router communicates with the mobile users in the area. The backhaul side of the device relays the traffic from router to router wirelessly until it reaches a gateway that connects to the Internet or other private network mostly via a wired connection, but that could also be wireless.

Routing Algorithms
A major benefit of wireless mesh networks is path diversity, which provides many routes to the Internet in case one of the routers fails or its transmission path is temporarily blocked. The choice in routing algorithm is critical, and numerous mesh algorithms have been used over the years.

Number of Radios
Mesh routers can employ one, two or three radios. A single-radio router shares bandwidth between users and the backhaul. If two radios are used, one is dedicated to the frontside clients and the other to the backhaul. In three-radio routers, two radios are used for the backhaul and can transmit and receive simultaneously over different Wi-Fi channels. See 802.11.


A Wireless Mesh Network Topology
This simulated example from Tropos Networks is overlaid onto an aerial map to show how mesh routers are used in a metropolitan environment. (Image courtesy of Tropos Networks, Inc., www.tropos.com)







On the Pole
Depending on foliage and topography, up to 20 mesh routers are mounted on light poles per square mile. In this example, the man is making a Wi-Fi voice call between his VoWi-Fi phone and a Wireless Multi-Service Switch Router. (Image courtesy of Ericsson, www.ericsson.com)



On the Pole
Depending on foliage and topography, up to 20 mesh routers are mounted on light poles per square mile. In this example, the man is making a Wi-Fi voice call between his VoWi-Fi phone and a Wireless Multi-Service Switch Router. (Image courtesy of Ericsson, www.ericsson.com)



On the Pole
Depending on foliage and topography, up to 20 mesh routers are mounted on light poles per square mile. In this example, the man is making a Wi-Fi voice call between his VoWi-Fi phone and a Wireless Multi-Service Switch Router. (Image courtesy of Ericsson, www.ericsson.com)



On the Pole
Depending on foliage and topography, up to 20 mesh routers are mounted on light poles per square mile. In this example, the man is making a Wi-Fi voice call between his VoWi-Fi phone and a Wireless Multi-Service Switch Router. (Image courtesy of Ericsson, www.ericsson.com)
References in periodicals archive ?
[3] Jean Louis Ebongue Kedieng Fendji, Jean Michel Nlong, "Rural Wireless Mesh Network: A Design Methodology", in Int.
Hamid, "Review of channel assignment approaches in multi-radio multi-channel wireless mesh network," Journal of Network and Computer Applications, vol.
In section 2, we review the concept of a wireless mesh network, acknowledge existing, similar approaches, and discuss Wi-Fi Direct on Android.
Empirical observations of a real-world wireless mesh network suggest that mETX and ENT could achieve a 50% reduction in the average packet loss rate compared with ETX.
It is used to help TCP-UB over wireless mesh network to control the nodes' mobility.
Sustainability is the salient factor for living organisms and this concept is applicable for wireless mesh network where stability and sustainability is critical for expected functions of WMN which is deployed and designed for specific application in a specific environment and supports specific group of users intend to use the particular application.
The remainder of this paper is organized as follows: Section 2 reviews state of the art literature related to routing algorithms for wireless mesh networks. Section 3 describes some of wireless mesh network testbeds.
It took Petrobel just two days to set up the wireless mesh network on Adriatic X - one day for a site survey, and one day for the installation of the equipment and commissioning.
OneWireless, an industrial wireless mesh network solution, features a scalable infrastructure that supports wireless-enabled devices in strategic locations throughout a facility.
"It incorporates several features that make it particularly easy to set up and operate a wireless mesh network. The DM1800 provides ultra-low-power operation while communicating up to 200 meters between nodes in a mesh network.
To provide universal, affordable Internet access, Philadelphia plans to construct a gigantic "wireless mesh network"--a system of interconnected antennas placed on streetlights, traffic signals, and public buildings.

Full browser ?