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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
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Glossary
1xEV-DO
(1 x evolution-data optimized)
3G
802.11
A technology that offers near-broadband packet data speeds for wireless access to the Internet. It is an alternative to wideband CDMA (WCDMA). Both are considered 3G technologies. A well-engineered 1xEV-DO network delivers average download data rates between 600 and 1200 kbps during off-peak hours, and between 150 and 300 kbps during peak hours. Instantaneous data rates are as high as 2.4 Mbps. Only
1.25 MHz of spectrum is required, one-quarter of that for WCDMA. Third-generation wireless, specified by the ITU promises to offer increased bandwidth and high-speed data applications up to 2 Mbps. It works over wireless--air interfaces such as GSM, TDMA and CDMA. 3G refers to near-future developments in personal and business wireless technology, especially mobile communications. This phase is expected to reach maturity between 2003 and 2005.
A family of specifications for wireless local area networks (WLANs) developed by a working group of the Institute of Electrical and Electronics Engineers
The Business of WiMAX Deepak Pareek
2006 John Wiley & Sons, Ltd
294 GLOSSARY
(IEEE). There are currently three specifications in the family, 802.11a, 802.11b and 802.11g. All use the Ethernet protocol and CSMA/CA (carrier sense multiple access with collision avoidance) for path sharing. 802.11e, 802.11h and 802.11i are in different stages of development and approval. This series of wireless standards developed by the IEEE is also commonly known as Wi-Fi.
802.11a A wireless networking specification,
assigned by the IEEE, in the 5 GHz frequency range with a bandwidth of 54 Mbps.
802.11b A wireless networking specification,
assigned by the IEEE, in the 2.4 GHz frequency range with a bandwidth of 11 Mbps.
802.11g A wireless networking specification,
assigned by the IEEE, in the 2.4 GHz frequency range with a bandwidth of 54 Mbps.
802.16 A group of broadband wireless commu-
nications standards for metropolitan area networks developed by a working group of the IEEE. 802.16 is the IEEE Air Interface Standard specification for fixed broadband wireless access systems (wireless metropolitan area networks, see MAN) employing a point-to-multipoint architecture.
802.20 A specification of physical and medium
access control layers of an air interface for interoperable mobile broadband wireless access systems, operating in licensed bands below 3.5 GHz, optimized for IP-data transport, with peak data rates per user in excess of 1 Mbps. It supports various vehicular mobility classes up to 250 km/h in a MAN environment and targets spectral efficiencies, sustained user data rates and numbers of active users that are all significantly higher than those achieved by existing
GLOSSARY
AES
(advanced encryption standard)
Access point
Analogue
Antenna
Authentication
Backbone
Bandwidth
Base station
Bits per second (bps)
Bluetooth Wireless Technology
295
mobile systems. This standard is under development.
An encryption algorithm for securing sensitive but unclassified material from US Government agencies and, as a likely consequence, may eventually become the de facto encryption standard for commercial transactions in the private sector. A wireless hardware device connected to a wired network that enables wireless devices to connect to a wired LAN. Modulated radio signals that enable transfer of information such as voice and data.
A device used for transmitting and/or receiving radio signals, whose shape and size is determined by the frequency of the signal it is receiving.
A process of identifying a user, usually based on a username and password, ensuring that the individual is who he or she claims to be, without saying anything about the access rights of the individual. The central part of a large network to which two or more sub networks link. It is the primary path for data transmission. A network can have a wired backbone or a wireless backbone.
The amount of data a network can carry,
i.e. how much and how fast data flows on a given transmission path. It is measured in bits or bytes per second.
The central radio transmitter/receiver that maintains communications with mobile radiotelephone sets within a given range (typically a cell site).
Is the number of bits that can be sent or received per second over a communication line.
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