What is Wireless Backhaul?

Wireless backpacks allow users to add another layer of wireless networking at the same time as they add another interface to their network (as with ATM’s in the ATM backhaul case). In a fully hierarchical wireless networking system, where every device on the network has a logical address and can be mapped to a physical address, the wireless backhaul part of this network describes the physical connections from the central core network to the individual wireless end-points. In such a system, logically addressed devices would be allowed to connect to each other via one or more physical interfaces. The central core network would also allow for multipoint connectivity, where different wireless devices could connect to each other over more than one physical wireless port. The backhaul is thus a special case of the centralization of data transmission.

Wireless backhaul – The physical connections from the central core network to the individual wireless end-points

wireless backhaul

 

The benefits of wireless backhaul over traditional modes of transmission are twofold: firstly, it allows for a higher quality of connectivity where there used to be none; secondly, since the device is physically closer to the end user (in this case, the end user’s desktop) than traditional radio access networking, the latency for the signal is lower and hence more reliable. For example, if you were sitting next to your desktop PC at home, you would have a much higher chance of being able to connect to the internet using a standard radio connection than you would if you had been sitting next to a device on the other side of the room that was connected to the internet only through a satellite dish. This means that a wireless backhaul system is far more reliable than a regular one.

 

The recent advances in technology, particularly the availability of millimeter wave technologies for communications and data transfer have made it possible for wireless backhaul solutions to be deployed in a wide range of applications. The fact that a single wireless device can support communication over a distance of hundreds of meters and yet transmit and receive data in a fraction of a second makes it a very versatile system. It is also an economic backhaul solution as it does not require the acquisition of additional terrestrial assets such as cable or optic fiber which are expensive and thus tend to be a large capital cost when making investments. In fact, it has already become quite a common practice for new telecommunications companies to install a small collection of these devices on site in order to reduce their total start up cost, which is something that all consumers can appreciate.

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