Books
in black and white
Main menu
Home About us Share a book
Books
Biology Business Chemistry Computers Culture Economics Fiction Games Guide History Management Mathematical Medicine Mental Fitnes Physics Psychology Scince Sport Technics
Ads

The business of wimax - Pareek D.

Pareek D. The business of wimax - Wiley publishing , 2006. - 330 p.
ISBN-10 0-470-02691
Download (direct link): thebusinessof2006.pdf
Previous << 1 .. 95 96 97 98 99 100 < 101 > 102 103 104 105 106 .. 107 >> Next

A short-range wireless specification that allows for radio connections (2.4 GHz) transmitting voice and data between devices (such as portable computers, personal digital assistants, PDAs, and
296
GLOSSARY
Broadband
CDMA
(code division multiple access)
Cable
Channel Client device
Client
Consumer premises equipment (CPE)
mobile phones) within a 30-foot range of each other. Bluetooth is a computing and telecommunications industry specification that describes how mobile phones, computers, and PDAs can easily interconnect with each other and with home and business phones and computers using a short-range wireless connection.
A fast Internet connection generally above 200 kbps. However, no official speed definition exists for broadband services.
A form of multiplexing which allows numerous signals to occupy a single transmission channel, optimizing the use of available bandwidth. CDMA2000, also known as IMT-CDMA Multi-Carrier or IS-136, is a CDMA version of the IMT-2000 standard developed by the International Telecommunication Union (ITU). The CDMA2000 standard is third-generation (3G) mobile wireless technology. CDMA2000 can support mobile data communications at speeds ranging from 144 kbps to 2 Mbps.
A broadband transmission technology using coaxial cable or fibre-optic lines that was first used for TV and is now being used for Internet access.
A path along which a communications signal is transmitted.
That which communicates with the hub, e.g. access points and gateways. They include PC cards that slide into laptop computers, PCMCIA modules embedded in laptop computers, and mobile computing devices.
An end user, i.e. any computer connected to a network that requests services (files, print capability) from another member of the network.
Devices located at home or in the office such as telephones, PBXs, and other communication devices.
GLOSSARY
297
DES
(data encryption standard)
DNS
DSL
(digital subscribers line)
Dial-up
Digital
E911
(short for enhanced 911)
EDGE
(enhanced data GSM environment)
A widely used method of data encryption using a private (secret) key that was judged so difficult to break by the US Government that it was restricted for exportation to other countries. There are 72 quadrillion or more possible encryption keys that can be used. For each given message, the key is chosen at random from among this enormous number of keys. Like other private key cryptographic methods, both the sender and the receiver must know and use the same private key. A program that accesses a database on a collection of Internet servers to translate URLs to Internet packet (IP) addresses.
Various technology protocols for highspeed data, voice and video transmission over ordinary twisted-pair copper POTS (plain old telephone service) telephone wires.
A communication connection using standard copper wire telephone network.
A technology used in telecommunications where information is processed by first converting it to a stream of ones and zeros, permitting extremely complicated systems to be designed and manufactured at reasonable cost through the use of application-specific ICs and computer circuitry while meeting very high performance standards.
A location technology advanced by the FCC that will enable mobile or cellular phones to process 911 emergency calls and enable emergency services to locate the geographic position of the caller.
A faster version of the global system for mobile (GSM) wireless service, designed to deliver data at rates up to 384 kbps and enable the delivery of multimedia and other broadband applications to mobile phone and computer users. The
298
GLOSSARY
ETSI
(European Telecommunications Standardization Institute) Ethernet (also called 10Base T)
Flash-OFDM (orthogonal frequency division multiplexing)
Firewall
GERAN
GPRS
(general packet radio services)
EDGE standard is built on the existing GSM standard, using the same time-divi-sion multiple access (TDMA) frame structure and existing cell arrangements. The pioneer in GSM and DECT standards.
Ethernet is an international standard for wired networks. It can offer a bandwidth of about 10 Mbps and up to 100 Mbps. A new signal processing scheme from Lucent/Flarion that will support high data rates at very low packet and delay losses, also known as latencies, over a distributed all-IP wireless network. The low-latency will enable real-time mobile interactive and multimedia applications. It promises to deliver higher quality wireless service and better cost effectiveness than current wireless data technologies.
Software, hardware or a combination of the two that prevents unrestricted access into or out of a network.
A term used to describe a GSM- and EDGE-based 200 kHz radio access network. The GERAN is based on GSM/ EDGE Release 99, and covers all new features for GSM Release 2000 and subsequent releases, with full backward compatibility to previous releases.
A packet-based wireless service that promises data rates from 56 up to 114 kbps and continuous connection to the Internet for mobile phone and computer users. The higher data rates will allow users to take part in video conferences and interact with multimedia Web sites and similar applications using mobile handheld devices as well as notebook computers. GPRS is based on global system for mobile (GSM) communication and will complement existing services such
Previous << 1 .. 95 96 97 98 99 100 < 101 > 102 103 104 105 106 .. 107 >> Next