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Glossary of Terms: Intel(R) PRO/Wireless 3945ABG Network Connection User Guide

Glossary

Numerical A B C D E F G H I L M N O P R S T W Term Definition

802.11The 802.11 standard refers to a family of specifications developed by the IEEE for wireless LAN technology. The 802.11 specifies an over-the-air interface between a wireless client and a base station or between two wireless clients and provides 1 or 2 Mbps transmission in the 2.4 GHz band using either frequency hopping spread spectrum (FHSS) or direct sequence spread spectrum (DSSS).

802.11a

The 802.11a standard specifies a maximum data transfer rate of 54 Mbps

 

and an operating frequency of 5 GHz. The 802.11a standard uses the

 

Orthogonal Frequency Division Multiplexing (OFDM) transmission method.

 

Additionally, the 802.11a standard supports 802.11 features such as WEP

 

encryption for security.

802.11b

802.11b is an extension to 802.11 that applies to wireless LANS and

 

provides 11 Mbps transmission (with a fallback to 5.5, 2 and 1 Mbps) in

 

the 2.4 GHz band. 802.11b uses only DSSS. Throughput data rate 5+

 

Mbps in the 2.4 GHz band.

802.11g

The 802.11g standard specifies a maximum data transfer rate of 54 Mbps,

 

an operating frequency of 2.4GHz, and WEP encryption for security.

 

802.11g networks are also referred to as Wi-Fi networks.

802.1x

802.1x is the IEEE Standard for Port-Based Network Access Control. This is

 

used in conjunction with EAP methods to provide access control to wired

 

and wireless networks.

AAA Server

Authentication, Authorization and Accounting Server. A system to control

 

access to computer resources and track user activity.

Access Point

Access point (AP). A stand-alone wireless hub that allows any computer

 

that has a wireless network adapter to communicate with another

 

computer and to connect to the Internet.

ad hoc

A communication configuration in which every computer has the same

network

capabilities, and any computer can initiate a communication session. Also

 

known as a peer-to-peer network or a computer-to-computer network.

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Intel 3945ABG specifications Encryption for security

3945ABG specifications

The Intel 3945ABG is a wireless networking adapter that played a significant role in advancing wireless connectivity in laptops and portable devices. Introduced in the mid-2000s, this adapter is notable for its dual-band capabilities and compliance with the IEEE 802.11 a/b/g standards. It supports both 2.4 GHz and 5 GHz frequency bands, enabling users to connect to a variety of wireless networks while offering improved performance and flexibility.

One of the standout features of the Intel 3945ABG is its support for MIMO technology, which stands for Multiple Input Multiple Output. This innovative technology enhances data transmission rates and increases the range of wireless connections by utilizing multiple antennas for sending and receiving data. MIMO allows the adapter to operate more efficiently in environments with obstacles, such as walls or furniture, making it an ideal choice for users who need reliable connectivity in varied settings.

The Intel 3945ABG adapter also includes Wi-Fi Protected Access (WPA) and WPA2 security protocols, ensuring that data transmitted over the wireless network remains secure. This is especially important in a time when wireless networks became progressively more vulnerable to unauthorized access and data breaches. The adapter's compatibility with these security standards aids users in establishing secure communications, whether for casual web browsing or sensitive tasks.

In terms of performance, the Intel 3945ABG offers maximum theoretical speeds of up to 54 Mbps in the 802.11a and 802.11g modes, while maintaining lower speeds in the 802.11b mode (up to 11 Mbps). In practical use, this means that users can achieve high data transfer rates in optimal conditions, making it suitable for video streaming, online gaming, and large file downloads.

The Intel 3945ABG also integrates seamlessly with Intel's Centrino mobile technology, which enhances power efficiency and optimizes the overall performance of a laptop. This synergy not only extends battery life but also provides a smooth user experience, as it allows the adapter to effectively manage network resources and maintain a stable connection.

In summary, the Intel 3945ABG wireless adapter is characterized by its dual-band support, MIMO technology, robust security features, and integration with Intel's Centrino technology. While it may now be considered outdated by modern standards, it served as an important stepping stone in the evolution of wireless networking technology and continues to be remembered for its contributions to mobile connectivity.