Sunday, 5 July 2015

The Working Of The Cellular DAS And Its Benefits

By Edna Booker


There are many situations where some spots have poor cellular network coverage. In some cases, the network is not available at all. This is common in high rise buildings, underground transportation systems and the highly populated areas like shopping malls, hospitals, college campuses, and stop arenas where the existing network system is overwhelmed by the demand such as many places in Raleigh city. The distributed antenna system, also known as the cellular DAS is the technology that boosts network coverage in areas with poor connectivity by installing a network of small antennas in the area that serve as repeaters.

The antennas are physically connected using a coaxial cable or the fiber to a central controller. This central controller is in turn connected to some wireless carrier network base station. The system increases the signal reliability and the power consumption is also less. Since the distributed antenna systems operate on RF spectrum that is licensed to a wireless carrier, it is not possible for an enterprise to undertake the deployment of DAS without one or more carriers.

The additional antennas mean better network coverage. The additional antennas are able to increase the line-of-sight channel that is responsible for a better network coverage. In normal systems, the provision of the cellular signals can be very power consuming since the system has to overcome the shadowing effect and penetration problems all which lead to the loss of signal.

The DAS antenna node are very compact. As such, they can be deployed indoors and even outside. In addition to this, they are smaller in size and require less power allowing them to be installed in the areas where the zoning restriction don't allow the cell towers to be placed. In fact, it can be tied to a given wireless carrier such as Verizon or AT&T. The best option, however, is the use of a neutral-host provider that has a multiple carriers.

The DAS antenna nodes can be installed indoors as well as outdoors since they are very compact. They are also small in size and the power requirement is less. This means that the system can be installed at any remote location where the zoning restriction cannot allow the traditional cell towers to be installed. In some cases, the system is tied to the wireless carriers like the AT&T and the Verizon. In most cases, the neutral-host providers are used given that they come with multiple carrier ability.

The installation purpose, the industry players usually prefer long contracts as direct installation is quite expensive. The ten year contract, for instance, has become the industry norm.

The distributed antenna systems are transparent to the mobile devices. It provides the voice services as well as data services to the mobile devices. It offers the most appropriate solution to the densely populated spaces such as the university campuses, shopping malls, sport arenas, the medical centers and the tall buildings.

The DAS systems offers the voice services and data services to all mobile devices in densely populated areas like the shopping malls, tall buildings, sport arenas, and the university or college campuses. Generally, the technology eases the zoning and antenna placement, less power consumption, and reduces the need for site development. In addition to this, less BTS are used since the Simulcast means less need for the Backhaul.




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