what are the types of wireless media?
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Types of wireless transmission media used in communications include infrared, broadcast radio, cellular radio, microwaves, and communications satellites. As discussed earlier in the chapter, infrared (IR) is a wireless transmission medium that sends signals using infrared light waves.
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["Environment. Most of the time we aren't talking about the weather when it comes to your wireless environment, unless you're planning a network outdoors. ... ", 'Devices. ... ', 'Applications. ... ', 'Users. ... ', 'Security. ... ', 'Budgets. ... ', 'Scalability & Future Considerations.']
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Types of Network Security There are three main types of wireless security/encryption in use today: WEP, WPA, and WPA2. WEP (Wired Equivalent Privacy) is an older protection method that was designed to provide a similar level of protection to wireless network traffic as is provided in a wired network.
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['Analog: Includes conventional radio, telephonic and television transmissions.', 'Digital: Computer-mediated communication, computer networking and telegraphy.']
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WMM (Wi-Fi Multimedia) is an automated service that gives priority to multimedia running through your wireless network. That includes voice, video and audio that, when you're using, you want to always work.
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The radio frequency (RF) spectrum is vital for wireless communications infrastructure. The 802.11 standard provides several distinct radio frequency ranges for use in Wi-Fi communications: 900 MHz, 2.4 GHz, 3.6 GHz, 4.9 GHz, 5 GHz, 5.9 GHz and 60 GHz bands. Each range is divided into a multitude of channels.
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["USB-A. A type-A connector is one you've probably used a fair amount. ... ", 'USB-B. Type-B connectors are almost square in shape. ... ', 'USB-C. One of the newer USB cables on the scene is the type-C. ... ', 'Mini-USB. These connectors used to be the standard for mobile devices, cameras, and MP3 players. ... ', 'Micro-USB. ... ', 'USB 3.']
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['WiFi.', 'Cellular Networks.', 'Microwaves.', 'Bluetooth.', 'GPS.']
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The different types of mobile communication systems are a mobile two-way radio, public land radio, mobile telephone and amateur (HAM) radio. Mobile two-way radios are one-to-many communication systems that operate in half-duplex mode, i.e., push to talk.
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Broadcast transmitters for AM, FM and Television use frequencies below 1000 MHz, Wi-Fi uses two bands at higher frequencies - 2.4 and 5GHz. Cellular phones use many different frequencies. Television: Many frequencies from 470MHz to 800MHz, and others.
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['Coaxial cable – used for radio frequency signals, for example in cable television distribution systems.', 'Communications cable.', 'Direct-buried cable.', 'Flexible cables.', 'Heliax cable.', 'Non-metallic sheathed cable (or nonmetallic building wire, NM, NM-B)', 'Metallic sheathed cable (or armored cable, AC, or BX)']
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“Wireless” as the term refers, uses air as a medium to send electromagnetic waves or infrared waves. Wireless devices have antennas for communication. Though wireless connectivity is less secured and higher delay than wired connectivity, it is still preferred communication technology for customers. ...
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['Touch Screen.', 'Modems.', 'Network cards.', 'Audio Cards / Sound Card.', 'Headsets (Headset consists of Speakers and Microphone.', 'Speaker act Output Device and Microphone act as Input device.', 'Facsimile (FAX) (It has scanner to scan the document and also have printer to Print the document)']
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['Security. – To combat this consideration, wireless networks may choose to utilize some of the various encryption technologies available. ... ', 'Range. – The typical range of a common 802.11g network with standard equipment is on the order of tens of meters. ... ', 'Reliability. ... ', 'Speed.']
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Wireless Networks uses spread-spectrum or depends on OFDM technology. It enables a user to move within a wide coverage area but still connected to the network. Wireless networks are classified into different type such as wireless LAN, WAN, MAN, PAN, Hybrid, Ad-Hoc networks.
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['The Internet and Email.', 'Cell Phones.', 'High-Definition Television.', 'Other Electronic Communication.', 'Physical Digital Media.']
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['Print.', 'Screen.', 'Audio.', 'Microform.', 'CD-ROM or DVD.', 'Electronic.', 'Web-based documents.']