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Wireless Network Advantages and Disadvantages

Advantages

There are many advantages associated with installing a radio network compared to a wired network such as mobility, cost-effectiveness and adaptability.

Wireless Networking is relatively cheaper than wired Sites since they need no cables between your computer systems as well as lower long-term costs scheduled to less maintenance since there is less equipment. The reduced amount of cords also reduces the trip risk caused by wires running along the floor generally in most homes. Most cellular network equipment is plug-and-play, which helps reduce the total cost such as supplier unit installation and eliminates redundancy is circumstance of something crash.

Wireless Networking is also very mobile and adaptable; it is adaptable to most situations and requirements. Cellular networks can easily be set up and dissembled, which is exquisite for many individuals who are on temporary worksites/homes or leased space. Additionally, it may provide networking in places where regular wire cannot reach like the back garden in a home situation. Gain access to points can be used to boost the cellular signal range if required. Since lightweight workstations such as laptops have become popular, wireless networks can provide fast and simple access to the internet and workspaces for students and professors in colleges etc. Additionally it is extremely easy to add other components onto this type of network such as easy installation of VoIP and printers etc without the need to configure ones computer.

Disadvantages

Since wireless networking is a comparatively new and contingent form of networking, it is filled with it own risks and problems such as unreliability and security.

Wireless sites have limited bandwidth, hence they can not support Video tutorial Teleconferencing(VTC). It is also limited in its expandability because of the lack of available wireless spectrum for it to take up.

Wireless Network can be a security risk if not installed and maintained properly. Wireless sites don"t require any physical components to hook up up to it such as wiring, only a wireless adapter is required which significantly increases the convenience of the network to potential hackers. This situation is worsened if the network doesn"t contain a password since it can then be reached by a person with ease.

Wireless networks also have an increased chance of jamming and interference due to exterior factors such as fog and dust storms or when a flying object such as an aeroplane moves on the field. When too many people in the same area use wireless networks, the music group of air that they transfer signals on may become overloaded.

Wired networks

Advantages

Wired networks have existed for a long times, therefore are suffering from exponentially within the recent years. Improvements have been made in the areas of acceleration, security and dependability.

Wired networks offer the fastest transfer velocity of all the networks. Gigabit Ethernet happens to be the best choice for wired sites and provides rates of speed of up to one gigabit per second. This is almost 3 x faster than the best wireless interconnection available and almost ninety times faster than a regular interconnection.

Wired networks consist of physical, fixed connects which are not prone to disturbance and fluctuations in available bandwidth brought on by factors such as walls. Features such as shielding(adding an aluminium foil across the wire connections) and twisting at different advantages help reduce interference.

Wired networks likewise have an improved security system than cellular sites. The network itself is harder to hook up to since it should be physically linked to through wire connections which can become a headache when looking to hack into it. It can't be accessed from anywhere since the alerts aren't broadcasted.

Disadvantages

Wired systems mainly suffer from the inverse of the features of a wireless network system such as lack of mobility and higher cost.

Wireless network require better resources such as cabling, change/hub and network credit cards to install and maintain therefore the initial and long term costs are higher. It can also be a large loss when it should be disassembled and reinstalled given that they wiring needs to be completely overhauled and is normally unusable after because of destruction.

Wired networks can even be a hassle to install new components into because of all the hardware required to do this. Cables and network credit cards must install new pcs to the machine and wires need to be drawn from the swap to the computers. The wiring may become untidy and indistinguishable rapidly and can become a potential protection hazard because of the threat of triping.

Wired Network Components

Switch

The network change is some type of computer networking device that links network segments, it connects the many parts of the network together like a convergence device. The network change commonly refers to a network bridge that operations and routes data at the info link layer (layer 2) of the OSI model. Switches that also process data at the Network covering are technically referred to as Multilayer switches.

Network card

A network user interface credit card, network adapter, network user interface controller (NIC), network program cards, or LAN adapter is a computer hardware component made to allow computers to communicate over the computer network. It is both an OSI covering 1 (physical layer) and covering 2 (data website link level) device, as it provides physical access to a networking medium and a low-level addressing system through the use of Macintosh personal computer addresses. It allows users to connect to the other person either by using cords or wirelessly

Cabling:

There are various kinds of cabling available however the two common categories are the copper cables and the fibre optic wires.

There are two main types of copper wires, twisted pairs and coaxial cable connection. Twisted pairs are two insulated wires twisted around one another to for a twisted match. This causes a better electro-mechanical performance and a just a bit higher tad rate than untwisted pairs. The twisting helps reduce interference by twisting at different tightness" and by also adding in a covering of aluminium around it(shielded). They have grown to be the most typical form of transmitting media cable connection today. Coaxial cords are two-wire conductors with a more substantial bandwidth than the twisted match cables. The interior cable is closely insulated so that it is safe from bending and crushing and separated from the braided outer conductor. This outer cable is in turn covered. The resultant electro-mechanical field occurs outside the coaxial cable connection, thus reducing the level of noise making the medium well suited for conducting high little rates over longer ranges than twisted pairs.

Fibre Optics

Fibre optic cords work through total internal representation where a laser beam is approved through a hollow wine glass tube. There are two ways of transfer because of this media, single method and multi mode.

Single function optical fibre"s only take an individual ray of light that can vary in wavelength. The ray moves parallel to the space of the fibre and it is often called the transverse setting since its electromagnetic vibrations take place perpendicular (transverse) to the distance of the fiber content. Multi mode is mainly used for communication over short ranges. It utilizes multiple rays of light going through the same pipe at exactly the same time. Typical multimode links have data rates of 10 Megabit/s to 10 Gigabit/s over website link lengths of up to 600 meters.

Wireless Network Components

Wireless Modem/Router

A cellular router is a network device that carries out the functions of a router but also includes the functions of a wireless access point. It really is commonly used to allow access to the web or a pc network without the need for a cabled interconnection. It could function in a wired LAN (geographic area network), a wireless only LAN or a combined wired/wireless network. A modem router also allows usage of the internet for your network.

Wireless Network Adapter

A cordless network adapter allows a processing device to become listed on a wireless LAN. Cellular network adapters include a built-in radio transmitter and device. There are plenty of three main types of adapters, traditional PCI wireless adapters are add-in credit cards designed for assembly inside a pc having a PCI bus. USB wireless adapters connect to the external USB port of an computer. Finally, so-called Personal computer Credit card or PCMCIA wireless adapters insert into a small open bay on the portable computers.

Security

Authentication

Authentications are security procedures designed to build the validity of an transmission, message, or originator, or a way of verifying an individual's authorization to receive specific types of information. E. g. Passwords.

Firewall

Firewalls can be integrated in either hardware or software, or a combination of both. Firewalls are generally used to avoid unauthorized Internet users from accessing private networks connected to the web, especially intranets. All text messages entering or leaving the intranet go through the firewall, which examines each meaning and blocks the ones that do not meet the specified security conditions. Types of firewalls include packet filters, proxy servers, Application gateways and circuit level gateways.

Encryption

Encryption is the transformation of data into an application, called a cipher word that cannot be easily known by unauthorized people. Decryption is the procedure of switching encrypted data back into its original form, so it can be realized. You will discover three types of encryption, manual, translucent and semi-transparent.

Proposal:

The most suitable network because of this situation is a mixture of both wired and cellular networks. Offices two, three and four should be connected through physical wired relationships to ensure maximum acceleration and stability and the fastest possible connection with the server without creating a more permanent layout e. g. burying the wire connections. Fast Ethernet cabling will be utilized since extreme copy speeds are not required for this situation. Office one should be linked to wireless which eradicates the necessity for wires. Since there is only one computer linked wirelessly the bandwidth is not distributed allowing for ‹faster" connection acceleration. Addititionally there is the added reward of being able to connect notebook computers etc, which are becoming increasingly popular, to the network easily. The move and the router will be placed in office three along with the server since it'll be the computer that is most frequently accessed, reducing the distance between it and the swap should increase performance. The router/modem will be connected to an internet access point to enable web connection.

Bibliography

Advantages and Cons of Cellular Networks

  • http://faculty. ed. umuc. edu/~meinkej/inss690/khayat. pdf (accessed 10/9/10)
  • www. netgear. co. uk/home_newnetwork_wiredwireless. php (utilized 8/09/10)

Advantages and Down sides of Wired Networks

  • http://www. see. ed. ac. uk/~dil/thesis_mosaic/subsection2_7_2_2. html (seen 10/9/10)
  • www. web-articles. info/. . . /Advantages-of-Wired-Networks-over-Wireless-Networks/ (utilized on the 8/9/10)

Network Components

  • http://en. wikipedia. org/wiki/Network_adapter (Accessed 10/09/10)
  • http://www. teach-ict. com/as_a2/topics/networks/network%20components/network_components/index. htm (accessed 08/09/10)
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