With the increasing importance of wireless networks in the corporate, educational and hospitality world and the proliferation of WiFi infrastructure to service these demands, it has become even more important that the network administrator has the tools at hand to quickly manage, configure and generally administer the various elements of the network. At its most basic this might be simply to change the SSID of one particular access point (AP) or, at the other end of the scale, it might be to en-mass administer a firmware update; the ability to centrally control and manage all elements of the WiFi network is now a vital tool for any system where there is a large, distributed wireless infrastructure.
The basic elements of any managed wireless system is a collection of distributed access points (APs) which connect through wired network connections to the access controller (AC). The access controller is the device or server which facilitates control functions of the APs. The AC unit can take the form of a stand alone controller, a WLAN switch, or even a computer/software implementation. Although a wired network would be the norm for control connectivity to the access points, it is also possible to use a secondary wireless infrastructure for the data connectivity.
Fat, Thin, and Fit APs
In a managed WiFi network, consisting of multiple access points and the access controller, the level of data control and management the AC has to furnish depends upon the level of autonomous operation the APs have. Continue reading…
The Hull and East Riding of Yorkshire Caravan Manufacturers’ Association runs The Lawns Caravan Show every September, to introduce the new season’s caravans. The Lawns Show in Cottingham, near Hull, generally features more than 130 new touring caravans and about 150 caravan holiday-homes, lodges and park homes from most of the major British manufacturers. Following the Extravaganza there is a trade only event. The show attracts about 3,500 visitors from throughout the UK, and many parts of Europe and Scandinavia – and sometimes even further afield.
Lawns Caravan Show, Access Point mounted on central hill
The 3G and 4G mobile network platforms provide a way of providing high-speed internet access to mobile devices like smart phones or dedicated 3G/4G products and is a convenient way of accessing the internet where there is no available presence of a broadband line.
The main discernible differences between 3G and 4G (LTE) are the speeds of data transmissions from a device to the network mast (and the resulting reply) and also the way in how 3G and 4G signals are transmitted.
3G is single stream and 4G (LTE) is dual stream which means that two signals are sent out and two signals are expected to be received.
This is what ultimately gives 4G the edge in speed over the data transfer of 3G signals as more data can be sent in a single transmission. Continue reading…