Get started

Bring yourself up to speed with our introductory content.

Cell Phones and Cellular Technology

  • CSD (circuit switched data)

    Circuit switched data (CSD) was the original form of data transmission developed for TDMA-based networks, typically obtaining speeds up to 9.6 Kbps. Continue Reading

  • UMTS (Universal Mobile Telecommunications Service)

    UMTS (Universal Mobile Telecommunications Service) is a third-generation (3G) broadband, packet-based transmission of text, digitized voice, video, and multimedia at data rates up to 2 megabits per second (Mbps). UMTS offers a consistent set of ... Continue Reading

  • TD-SCDMA (time division synchronous code division multiple access)

    TD-SCDMA (time division synchronous code division multiple access) is a mobile telephone standard for wireless network operators who want to move from a second generation (2G) wireless network to a third-generation (3G) one. Supporting data ... Continue Reading

  • Advanced Mobile Phone Service (AMPS)

    Advanced Mobile Phone Service (AMPS) is a standard system for analog signal cellular telephone service in the United States and is also used in other countries. It is based on the initial electromagnetic radiation ... Continue Reading

  • D-AMPS (Digital-Advanced Mobile Phone Service)

    D-AMPS (Digital-Advanced Mobile Phone Service), sometimes spelled DAMPS, is a digital version of AMPS (Advanced Mobile Phone Service), the original analog standard for cellular telephone phone ... Continue Reading

  • 802.11i

    802.11i is a standard for wireless local area networks (WLANs) that provides improved encryption for networks that use the popular 802.11a and 802.11b (which includes Wi-Fi standards).Continue Reading

  • 802.11m

    802.11m is an initiative to perform editorial maintenance, corrections, improvements, clarifications, and interpretations relevant to documentation for 802.11 family specifications.Continue Reading

  • 802.11k

    802.11k is a proposed standard for a series of measurement requests and reports involving channel selection, roaming, transmit power control (TPC), and subscriber statistics in 802.11 wireless local area networks (WLANs).Continue Reading

  • 802.11j

    The 802.11j specification is a proposed addition to the 802.11 family of standards for wireless local area networks (WLANs) that incorporates Japenese regulatory extensions to the 802.11a standard.Continue Reading

  • 802.11h

    The 802.11h specification is an addition to the 802.11 family of standards for wireless local area networks (WLANs). 802.11h is intended to resolve interference issues introduced by the use of 802.11a in some locations, particularly with military ...Continue Reading

  • 802.11g

    The 802.11g specification is a standard for wireless local area networks WLANs) that offers wireless transmission over relatively short distances at up to 54 megabits per second (Mbps), compared with the 11 Mbps theoretical maximum with the earlier ...Continue Reading

  • 802.11e

    802.11e is a proposed enhancement to the 802.11a and 802.11b wireless LAN (WLAN) specifications.Continue Reading

  • wireless

    Wireless is a term used to describe telecommunications in which electromagnetic waves (rather than some form of wire) carry the signal over part or all of the communication path.Continue Reading

  • 802.11d

    802.11d is a communications specification for use in countries where systems using other standards in the 802.11 family are not allowed to operate.Continue Reading

  • 802.11b

    The 802.11b standard for wireless local area networks (WLANs) - often called Wi-Fi - is part of the 802.11 series of WLAN standards from the Institute of Electrical and Electronics Engineers (IEEE).Continue Reading

  • podslurping (slurping)

    Podslurping (sometimes just called slurping) is the unauthorized download of data from a computer to a small device with storage capacity, such as a flash drive or an iPod or other MP3 player... (Continued)Continue Reading

  • TKIP (Temporal Key Integrity Protocol)

    TKIP (Temporal Key Integrity Protocol) is an encryption protocol included as part of the IEEE 802.11i standard for wireless LANs (WLANs).Continue Reading

  • polite cell phone

    A polite cell phone is a mobile telephone with built-in intelligence so that it adapts to its current environment and behaves appropriately... (Continued)Continue Reading

  • hot spot

    For users of portable computers equipped for wireless, a hot spot (or hotspot) is a wireless LAN (local area network) node that provides Internet connection and virtual private network (VPN) access from a given location.Continue Reading

  • wireless router

    A wireless router is a device in a WLAN (wireless local area network) that determines the next network point to which a packet should be forwarded toward its destination. A wireless router works in the same way as the router in a hard-wired home or ...Continue Reading

  • 802.16a

    802.16a is a wireless communications specification for metropolitan area networks (MANs).Continue Reading

  • 802.16c

    802.16c is a set of clarifications and updates to the 102.16 family of wireless communications specifications for metropolitan area networks (MANs).Continue Reading

  • smart antenna

    A smart antenna is a digital wireless communications antenna system that takes advantage of diversity effect at the source (transmitter), the destination (receiver), or both.Continue Reading

  • SISO (single input, single output)

    SISO (single input, single output) refers to a wireless communications system in which one antenna is used at the source (transmitter) and one antenna is used at the destination (receiver).Continue Reading

  • American Radio Relay League (ARRL)

    The American Radio Relay League (ARRL) is a worldwide organization of amateur radio operators with its headquarters in Newington, Connecticut, USA. The organization was founded in 1914 by Hiram P. Maxim.Continue Reading

  • SIMO (single input, multiple output)

    SIMO (single input, multiple output) is an antenna technology for wireless communications in which multiple antennas are used at the destination (receiver).Continue Reading

  • digital audio broadcasting (DAB)

    Continue Reading

  • DoCoMo (NTT DoCoMo)

    DoCoMo, also known as NTT DoCoMo, is a Japanese communications corporation that has introduced a line of cell phone sets that contain the equivalent of a digital smart card.Continue Reading

  • mLife

    mLife is a multi-million dollar advertising campaign sponsored by AT&T to promote their wireless products and services.Continue Reading

  • keitai

    Keitai (pronounced k-tie) is a Japanese word meaning "portable.Continue Reading

  • hot zone

    A hot zone is a wireless access area created by multiple hot spots located in close proximity to each other.Continue Reading

  • FlashMob supercomputer

    A FlashMob supercomputer is a group of computer enthusiasts who gather together in one physical location for a brief time period in order to function as a supercomputer and work on a single problem.Continue Reading

  • MISO (multiple input, single output)

    MISO (multiple input, single output) is an antenna technology for wireless communications in which multiple antennas are used at the source (transmitter).Continue Reading

  • Complementary Code Keying (CCK)

    Complementary Code Keying (CCK) is a modulation scheme used with wireless networks (WLANs) that employ the IEEE 802.11b specification.Continue Reading

  • Bluejacking

    Bluejacking is the practice of sending messages between mobile users using a Bluetooth wireless connection.Continue Reading

  • 802.1X

    The 802.1X standard is designed to enhance the security of wireless local area networks (WLANs) that follow the IEEE 802.11 standard.Continue Reading

  • megachips per second (Mcps)

    Megachips per second (Mcps) is a measure of the speed with which encoding elements, called chips (not to be confused with microchips), are generated in Direct Sequence Spread Spectrum (DSSS) signals.Continue Reading

  • searching

    On the Internet, searching is just trying to find the information you need. (Continued...)Continue Reading

  • disappearing e-mail

    Disappearing e-mail is a message sent using a type of distribution management tool for e-mail.Continue Reading

  • portable keyboard (handheld keyboard)

    A portable keyboard (or handheld keyboard) is one that is designed to be used with wireless devices, such as personal digital assistants (PDAs) and smartphones.Continue Reading

  • turnkey

    Turnkey is a product or service that is designed, supplied, built, or installed fully complete and ready to operate.Continue Reading

  • cell breathing

    Cell breathing is the constant change of the range of the geographical area covered by a cellular telephone transmitter based on the amount of traffic currently using that transmitter.Continue Reading

  • solar fade (sun interference)

    Solar fade, also called sun interference, is a phenomenon that occurs in satellite communications on certain occasions when the downlink signal is aligned with the sun's position and it is overcome by signal noise from the sun.Continue Reading

  • direct broadcast satellite (DBS)

    Direct broadcast satellite (DBS) refers to satellite television (TV) systems in which the subscribers, or end users, receive signals directly from geostationary satellites.Continue Reading

  • service set identifier (SSID)

    A service set identifier (SSID) is a sequence of characters that uniquely names a wireless local area network (WLAN)... (Continued)Continue Reading

  • Enhanced Messaging Service (EMS)

    Enhanced Messaging Service (EMS) is an adaptation of the Short Message Service (SMS) that allows users to send and receive ring tones and operator logos, as well as combinations of simple media to and from EMS-compliant handsets.Continue Reading

  • watchdog timer (WDT)

    A watchdog timer (WDT) is a device or electronic card that performs a specific operation after a certain period of time if something goes wrong with an electronic system and the system does not recover on its own.Continue Reading

  • mobility agent

    In Mobile Internet Protocol (Mobile IP), a mobility agent is a router that facilitates Internet traffic forwarding for a mobile node when its location is changed to somewhere other than its home network.Continue Reading

  • WPAN (wireless personal area network)

    A WPAN (wireless personal area network) is a personal area network - a network for interconnecting devices centered around an individual person's workspace - in which the connections are wireless.Continue Reading

  • 802.15

    802.15 is a communications specification that was approved in early 2002 by the Institute of Electrical and Electronics Engineers Standards Association (IEEE-SA) for wireless personal area networks (WPANs).Continue Reading

  • remote wakeup (RWU)

    Remote wakeup (RWU) is a general term for the powering-up of (turning on) a computer over a network.Continue Reading

  • war driving (access point mapping)

    War driving, also called access point mapping, is the act of locating and possibly exploiting connections to wireless local area networks while driving around a city or elsewhere.Continue Reading

  • rain fade

    Rain fade is an interruption of wireless communication signals as a result of rain or snow droplets whose separation approximates the signal wavelengths.Continue Reading

  • 802.11x

    802.11x refers to a group of evolving wireless local area network (WLAN) standards that are under development as elements of the IEEE 802.11 family of specifications, but that have not yet been formally approved or deployed.Continue Reading

  • drive-by spamming

    Drive-by spamming is a variation of drive-by hacking in which the perpetrators gain access to a vulnerable wireless local area network (WLAN) and use that access to send huge volumes of spam.Continue Reading

  • Centrino

    Centrino is a technology package from Intel that provides built-in wireless support for laptop computers while making it possible to run a laptop all day (up to seven hours) without a battery recharge.Continue Reading

  • Personal Response System (PRS)

    In education, the Personal Response System (PRS) is an instructional technology tool composed of a proprietary software application that is installed on the facilitator's computer, a wireless receiver, and hand-held infrared transmitters that have ...Continue Reading

  • Application Compatibility Toolkit (ACT)

    Application Compatibility Toolkit (ACT) is a set of freely downloadable program utilities and related documents from Microsoft for ensuring compatibility among application programs in Windows operating systems, especially in a large network ...Continue Reading

  • Radio Data System (RDS)

    Continue Reading

  • Bluetooth brick

    A Bluetooth brick is a battery-powered, sealed device that has sensors for monitoring and communicating information such as temperature or vibration levels.Continue Reading

  • warchalking (war chalking)

    Warchalking is a grass roots effort to create a standard iconography for public Wi-Fi access.Continue Reading

  • gamer

    A gamer is a devoted player of electronic games, especially on machines especially designed for such games and, in a more recent trend, over the Internet.Continue Reading

  • bluesnarfing

    Bluesnarfing is the theft of information from a wireless device through a Bluetooth connection.Continue Reading

  • wireless number portability

    Wireless number portability is the ability of a mobile customer to retain the same phone number when they switch carriers; wireline-to-wireless number portability allows customers to switch from their landline telephone service to a wireless ...Continue Reading

  • beaming

    In infrared transmission, beaming is the communication of data between wireless devices using a beam of infrared light.Continue Reading

  • picture messaging (photo messaging)

    Picture messaging (sometimes called photo messaging) is the practice of taking a picture with a built-in camera on a mobile phone or other handheld device and sending it to another mobile device or an e-mail recipient.Continue Reading

  • 802.16

    802.16 is a group of broadband wireless communications standards for metropolitan area networks (MANs) developed by a working group of the Institute of Electrical and Electronics Engineers (IEEE).Continue Reading

  • W-CDMA (Wideband Code-Division Multiple Access)

    Also see CDMA, CDMA One, and CDMA2000. W-CDMA (Wideband Code-Division Multiple Access), an ITU standard derived from Code-Division Multiple Access (CDMA), is officially known as IMT-2000 direct spread.Continue Reading

  • myoelectric signal (motor action potential)

    A myoelectric signal, also called a motor action potential, is an electrical impulse that produces contraction of muscle fibers in the body.Continue Reading

  • antenna

    An antenna is a specialized transducer that converts radio-frequency (RF) fields into alternating current (AC) or vice-versa.Continue Reading

  • churn (agitation or turnover)

    In a general context, churn is a synonym for agitation or turnover.Continue Reading

  • soft handoff

    In cellular telephone communication, soft handoff refers to the overlapping of repeater coverage zones, so that every cell phone set is always well within range of at least one repeater (also called a base station).Continue Reading

  • eBook

    An eBook is an electronic version of a traditional print book that can be read by using a personal computer or by using an eBook reader.Continue Reading

  • air interface

    In cellular telephone communications, the air interface is the radio-frequency portion of the circuit between the cellular phone set or wireless modem (usually portable or mobile) and the active base station.Continue Reading

  • Pentium 4 (P4)

    Pentium 4 (P4) is the Intel processor (codenamed Willamette) that was released in November 2000. The P4 processor has a viable clock speed that now exceeds 2 gigahertz (GHz) - as compared to the 1 GHz of the Pentium 3. P4 had the first totally new ...Continue Reading

  • HiperLAN

    MEO satellite"HiperLAN is a set of wireless local area network (WLAN) communication standards primarily used in European countries.Continue Reading

  • wireless Web

    The wireless Web refers to use of the World Wide Web through a wireless device, such as a cellular telephone or personal digital assistant (PDA).Continue Reading

  • handoff

    In a cellular telephone network, handoff is the transition for any given user of signal transmission from one base station to a geographically adjacent base station as the user moves around.Continue Reading

  • IR wireless (infrared wireless)

    IR wireless is the use of wireless technology in devices or systems that convey data through infrared (IR) radiation.Continue Reading

  • handheld

    A handheld computer is a computer that can conveniently be stored in a pocket (of sufficient size) and used while you're holding it.Continue Reading

  • CDMA One (cdmaOne or code-division multiple access one)

    Also see CDMA, WCDMA, and CDMA2000. CDMA One, also written cdmaOne, refers to the original ITU IS-95 (CDMA) wireless interface protocol that was first standardized in 1993. It is considered a second-generation (2G) mobile wireless technology.Continue Reading

  • amateur radio (ham radio)

    Amateur radio, also known as ham radio, is a hobby enjoyed by several hundred thousand people in the United States and by over a million people worldwide.Continue Reading

  • whip antenna

    A whip antenna is a single-element antenna that can be used with anunbalanced feed line such as coaxial cable,or attached directly to a wirelesstransmitter, receiver, or transceiver.Continue Reading

  • two-way pager

    A two-way pager is a pager that allows you to send data as well as receive it.Continue Reading

  • handie talkie (HT, walkie talkie, handheld)

    A handie talkie, often referred to by its abbreviation, HT, is a handheld, portable two-way radio transceiver.Continue Reading

  • HomePNA

    HomePNA is an industry standard for interconnecting computers within a home using existing telephone lines and registered jack.Continue Reading

  • Nickel-Metal Hydride battery (Ni-MH or NiMH)

    The Nickel-Metal Hydride (Ni-MH) battery is a rechargeable power source that is increasingly used in portable computers and other devices.Continue Reading

  • stylus

    A stylus (pronounced STAI-luhs, from the Latin stilus or "stake") is an instrument for writing and, in computers, an input device used to write text or draw lines on a surface as input to a computer.Continue Reading

  • touch pad (touchpad)

    A touch pad is a device for pointing (controlling input positioning) on a computer display screen.Continue Reading

  • horn antenna

    A horn antenna is used for the transmission and reception of microwave signals.Continue Reading

  • hertz

    Hertz is a unit of frequency (of change in state or cycle in a sound wave, alternating current, or other cyclical waveform) of one cycle per second.Continue Reading

  • ground-plane antenna

    A ground-plane antenna is a variant of the dipole antenna, designed for use with an unbalanced feed line such as coaxial cable.Continue Reading

  • cam

    A cam, homecam, or Webcam is a video camera, usually attached directly to a computer, whose current or latest image is requestable from a Web site.Continue Reading

  • phased antenna system

    Continue Reading

  • Accelerated Graphics Port (AGP)

    Accelerated Graphics Port (AGP) is an interface specification that enables 3-D graphics to display quickly on ordinary personal computers.Continue Reading

  • mobile phone virus

    A mobile phone virus is a computer virus specifically adapted for the cellular environment and designed to spread from one vulnerable phone to another. (Continued...)Continue Reading

  • FDMA (frequency division multiple access)

    Continue Reading

  • Small Office Home Office (SOHO)

    In information technology, SOHO is a term for the small office or home office environment and business culture.Continue Reading

  • captive portal

    A captive portal is a Web page that the user of a public-access network is obliged to view and interact with before access is granted. Captive portals are typically used by business centers, airports, hotel lobbies, coffee shops, and other venues ...Continue Reading

  • optical wireless

    Optical wireless refers to the conbined use of two technologies - conventional radio-frequency (RF) wireless and optical fiber - for telecommunication.Continue Reading

-ADS BY GOOGLE

SearchNetworking

SearchUnifiedCommunications

SearchSecurity

Close