Wireless Communications

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Wireless technology defines the electronic devices that communicate in air without cables using radio frequency signals. Wireless technology is used in a variety of modern device and provides greater mobility. Wireless devices play an important role in voice and Internet communications.

Wireless Communications & Mobile Computing

Wireless routers accepts an incoming Internet connection and sendsthe data as RF signals to other wireless devices that are near to the router. Many routers have built-in security features such as firewalls that help protect devices connected to the router against malicious data such as computer viruses. A wireless router is used in many houses to connect their computers to the Internet.

Wireless adapters are hardware devices that are installed inside computers which enables wireless connectivity. If a computer does not have a wireless adapter, it will not be able to connect to a router in order to access the Internet. A wireless repeater is a wireless networking device that is used to extend the range of a wireless router. A repeater receives wireless signals and amplifies the strength of the signals, and then re-emits them.

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The strength of the signal can be increased by placing a repeater between the router and the computer connected to the router. Microwave is an effective type of wireless data transmission that transfers information using two separate methods. One method which is used to transmit data through the wireless media of a microwave is the satellite method that transmits information via a satellite that orbits 22, miles above the Earth. Stations on the ground send and receive data signals to and from the satellite with a frequency ranging from 11 GHz to 14 GHz and with a transmission speed of 1 Mbps to 10 Mbps.

Another method is a terrestrial method, in which two microwave towers with a clear line of sight between them are used ensuring no obstacles to disrupt that line of sight.


For the purpose of privacy, it is used often. Infrared is a media transmission system that transmits data signals through light emitting diodes LEDs or Lasers. Infrared is an electromagnetic energy at a wavelength which is longer than that of the red light.

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The information cannot be travelled through obstacles in an infrared system, but can be inhibited by light. One type of infrared is the point to point system in which transmission is possible between two points limited to a range and line of sight.

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The signal frequency to transmit in a point to point system is GHz to 1, terahertz THz , and the speed ranges from Kbps to 16 Mbps. Another method of transmission of infrared includes the broadcast system — and, in this method, a reflective material or a transmission unit amplifies and retransmits a data signal to several other units.

The normal frequency of an infrared broadcast system is GHz to 1, THz with a limited speed of 1 Mbps. The radio system is one type of wireless data transmission, and it is a wireless media that transfers data by carrying electromagnetic waves with low frequencies to distant locations through an electrical conductor and an antenna. Ham radio enthusiasts share information and serve as emergency communication aids during disasters with their powerful amateur broadcasting equipment and can even communicate digital data over the radio spectrum.

The transmission frequency for information transmitted through a radio system ranges from 10 kilohertz kHz to 1 gigahertz GHz , and the frequencies are regulated by the Federal Communications Commission FCC. The evolution of cellular networks is enumerated by generations. Many different users communicate across a single frequency band through Cellular and cordless phones.

Cellular and cordless phones are two more examples of devices that make use of wireless signals. Cordless phones have a limited range but cell phones typically have a much larger range than the local wireless networks since cell phone use large telecommunication towers to provide cell phone coverage. Anything that uses radio signals to communicate can be considered as a wireless device.

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Common devices such as garage door openers, baby monitors, certain video game consoles and walkie-talkies make use of wireless technology. Thus, Wireless networks are one of the fastest growing technologies in telecommunications market.

Radio, Mobiles, Internet, etc. The information provided in this article will be helpful to the viewers. Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal. Evolution of the number of total citation per document and external citation per document i. International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research research articles, conference papers and reviews in three year windows vs.

International Journal of Digital Information and Wireless Communications (IJDIWC)

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. The purpose is to have a forum in which general doubts about the processes of publication in the journal, experiences and other issues derived from the publication of papers are resolved. For topics on particular articles, maintain the dialogue through the usual channels with your editor.

Year SJR 2. Citations per document. Cites Year Value External Cites per document 3. Year International Collaboration Show this widget in your own website.