A sample text widget

Etiam pulvinar consectetur dolor sed malesuada. Ut convallis euismod dolor nec pretium. Nunc ut tristique massa.

Nam sodales mi vitae dolor ullamcorper et vulputate enim accumsan. Morbi orci magna, tincidunt vitae molestie nec, molestie at mi. Nulla nulla lorem, suscipit in posuere in, interdum non magna.

What are elements of wireless networks?

Wireless networks also have certain elements. In the telecommunications network, a number of elements called the wire-line network elements are present at the physical layer of the OSI model.
These network elements might be either of the following:
– Stand alone systems or
– Products supplied either assembled by the system integrator or the service provider taking parts from different manufacturers or products supplied by a single manufacturer.

These network elements are devices or products through which a wireless carrier can provide support for the following:
– MSC or mobile switching center and
– Back haul network

Which network elements are important?

– The reliability of a network service depends on the network elements present at the OSI model’s physical layer.
– Also, the protection and security of these services against all the operational applications and environments depends up on these elements.
– The network elements that lie on and between the cell tower and the base station cabinet or BSC are seen of as the most important ones.
– The antenna and the attachment hardware are the other additional things required, and they must have the following qualities:

  • Adequate strength
  • Robustness
  • Corrosion resistance
  • Rain resistance
  • Solar resistance
  • Resistance to other weather conditions

In addition to the above discussed things, the requirements of the individual components are as follows:

  • Hardware
  • Cable connectors
  • Closures

– Capacity is another important element of the wireless networks.
– This theorem is related to the noise in the channels and its bandwidth (in hertz).
– Another major wireless network element is the network bandwidth.
– The total bandwidth of a wireless network depends up on the extent to which the medium is dispersed.
– Dispersion and network bandwidth of the network vary in proportion to each other.
– This happens so because with more dispersion, the interference is reduced.
– Further, the total bandwidth of the network also depends up on the availability of the frequencies, their noise quotient.
– Other things that affect this network element are the directional antenna that is in use and whether power control is employed by the nodes or not.
– The devices or the mobile stations used are called the hosts and can be PDAs, laptops etc.
– These hosts run the network applications required for establishing a connection.
– Wireless links are also an element of the wireless network.
– They are used for making a connection between the mobile and the base station.
– These links also act as the backbone links.
– The link access is coordinated the same protocol that handles the mac.
– The data transmission rates may vary over different data links.
– An element of the wired network is the infrastructure mode.
– Mobile is connected to the wired network through the base station.
– Thus, ad hoc mode is the element of wireless networking.
– Here, there are no base stations and transmission is done by the nodes itself.

Challenges for Wireless Networks

– Wireless networks have gained popularity throughout the world.
– The number of cell phone users has outnumbered the number of land line phone users.
– Laptops are also a means of wireless communication.
– Wireless networks appear to be very appealing because of their convenience and fast access.
– Still two things offer a primary challenge to the wireless networks:

  • Mobility: Users of the mobile phones keep changing their position with respect to the network.
  • Establishing communication over a wireless link.

Leave a Reply

You can use these HTML tags

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>