advanced wireless communication

Rapid Progress in Wireless Communication Technology Drives WiMAX
Phenomenal growth in the wireless communications market is spurring uptake of wireless interoperability for microwave access (WiMAX)-based products. In fact, WiMAX is likely to become the third most widely used high-speed Internet access technology after digital subscriber line (DSL) and cable modems, which are its key competitors. WiMAX’s rising popularity can be attributed to the incorporation of specifications and standards that boost end-user confidence. In addition, WiMAX’s success in mass markets coupled with the increase in the number of technology providers is likely to make WiMAX more accessible and affordable. It also provides the much-needed capital for further investments in research and development for the continued advancement of the technology.

This research analyzes promising areas of next-generation wireless communications technologies and focuses on the future size and structure of the industry. The study also evaluates key technology drivers and the challenges facing WiMAX technology. Participants can identify potential collaborators, stay ahead of the competition, and keep abreast with critical developments.

Mobile Communications Proving to be Key Area of Growth for WiMAX

Mobile communications such as broadband wireless access is a strong driver for WiMAX. Service providers have already deployed 3G or 4G cellular services for access to advanced voice, video, multimedia, and broadband data services. 'WiMAX is standards-based - making it more affordable and competitive in the mass market,' says the analyst of this research service. 'As most mobile broadband users employ 3G or wireless fidelity (Wi-Fi) subscriber units, a gradual movement to voice over Internet protocol (VoIP) on WiMAX technology can also be expected.'

WiMAX is likely to find greater acceptance in data communications. Notebook computers and personal digital assistants (PDAs) are likely to incorporate the technology. Hybrid Wi-Fi and WiMAX with user access through Wi-Fi and backhaul by means of WiMAX is another emerging trend.

WiMAX holds Untapped Revenue Potential in Underserved Areas

Growing competition and product maturity in the broadband access domain compels suppliers to seek growth opportunities for WiMAX in underserved areas to create new customer bases and increase market share. 'The prime customers for WiMAX are likely to be rural and outlying areas where the cable and DSL infrastructure is limited,' says the analyst. The WiMAX standard supports mesh topology and smart antenna technologies that increase coverage and throughput especially in extreme environments.

In such cases, the wireless Internet service providers (WISPs) work in tandem with local utilities and governments to deliver voice services in addition to high-speed data. As prices equalize, WiMAX can look towards upstaging DSL - particularly in Asia and Eastern Europe.

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disadvantages of wireless network

The development in the communication systems and the networking has given rise to the wireless networks. The ease and flexibility of wireless communication has enabled us to use personal assistance devices to be used anywhere. This has enabled the mankind to excel in every field of the life, but at the same time it has many threats as well.
Security Besides all the comforts of the life wireless networks poses serious security threats. The main reason is the signals are spread in the air and it is convenient for the hackers to catch wireless signals. Wireless networks require very tight security so that the unauthorized users cannot exploit the information. As more and users are making use of the wireless technologies, the risk of data being lost is increasing. The current wireless encryption protocols are difficult to handle .moreover the common users are not aware of the ways of addressing wireless security matters. One must build strong security protocols in order to secure the wireless signals like WPA and WPA2. Moreover wireless intrusion prevention system is another better way to build strong security system.
Major disadvantages Wireless is a public frequency network therefore its interface is highly risky to be used for official private information. The speed and the viability of the wireless signals drop as more and more users use the same frequency. Moreover its original throughput is three times less than it claims to deliver. Wireless technology is available in only three major channels ranging from 2.5 GHz, 11 and 1.6 GHz, Which is much lower than the wired network. They are 50 times slower than the wired network technologies. The wireless signals are also attuned by the barriers such as walls, doors and devices itself. The setup of the wireless technology is difficult maintain. Hence it an unstable network. Though wireless technologies provide flexibility to use and carry your laptop or any other portable device with you anywhere, but the longer the distance the weaker the signals. The extensive use of wireless signals over the mobile phone is dangerous to the health of the human beings. The various health problems that wireless can pose are memory loss and even cancer. Wireless signals are prone to disrupt by the infrared and radio signals. Wireless technologies are four times more expensive than wired technology due to their difficult setup. If one needs to transfer confidential data over the network wireless technology is a serious risk to be used. Banks, investigation agencies and legal data should be transferred using wired network technologies, because they are more safe and sound. The wireless technology offers public access points which hinder the efficient transfer of data. Types of Unauthorized Access to Wireless Networks The unauthorized access to the wireless signals is really common. The various types of unauthorized access are malicious association, accidental association, ad hoc networks, and non traditional networks, man in the middle attack, identity theft and denial of service. When a user turn on its PC, and he or she receives unauthorized signals from a neighboring building. User might not even signals are emerging and make use of it are have a clue from where they are emerging and make use of it , then we can call it accidental association. When a person uses crackers to access the password of the wireless network it is termed as malicious network. When the wireless technology has no centre device to act for it encryption settings are hard to mange therefore security can not be achieved. Bluetooth devices and PDAs are non traditional form of networks; they can be easily hacked by using cracker technology.

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advantages of wireless communication..

      There are several kinds of wireless technologies; the main difference being their range. Some offer connectivity over an area as large as your desktop whilst others can cover a medium-sized office space.
Our most familiar wireless network, the mobile phone, covers whole continents.
Wireless technology can offer businesses more flexible and inexpensive ways to send and receive data.
The four key benefits of wireless technology are:

1. Increased efficiency - improved communications leads to faster transfer of information within businesses and between partners/customers.
   
   

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difference network v/s router

this is the answer of what is network and router

What is a network switch and what is a router? The two pieces of equipment look similar and perform some similar functions, but each has its own distinct function to perform on a network.

What is a Network Switch?

To understand basic networking, you first need to answer the question, "What is a network switch?"
Most business networks today use switches to connect computers, printers and servers within a

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what is wireless communication?

          Wireless communication is the transfer of information over a distance without the use of electrical conductors or wires.
          The term "Wireless" came into public use to refer to a radio receiver or transceiver (a dual purpose receiver and transmitter device), establishing its usage in the field of wireless telegraphy early on; now the term is used to describe modern wireless connections such as in cellular networks and wireless broadband Internet. It is also used in a general sense to refer to any type of operation that is implemented without the use of wires, such as "wireless remote control", "wireless energy transfer", etc. regardless of the specific technology (e.g., radio, infrared, ultrasonic, etc.) that is used to accomplish the operation.

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