Appendix B

Wireless Networking Basics

This chapter provides an overview of Wireless networking.

Wireless Networking Overview

The WG311 v3 Wireless PCI Adapter conforms to the Institute of Electrical and Electronics Engineers (IEEE) 802.11b standard for wireless LANs (WLANs) and a product update will bring the WG311 v3 into conformance to the 802.11g standard when it is ratified. On an 802.11b or g wireless link, data is encoded using direct-sequence spread-spectrum (DSSS) technology and is transmitted in the unlicensed radio spectrum at 2.4GHz. The maximum data rate for the wireless link is 11 Mbps, but it will automatically back down from 11 Mbps to 5.5, 2, and 1 Mbps when the radio signal is weak or when interference is detected. The 802.11g auto rate sensing rates are 1, 2, 5.5, 6, 9, 12, 18, 24, 36, 48, and 54 Mbps.

The 802.11 standard is also called Wireless Ethernet or Wi-Fi by the Wireless Ethernet Compatibility Alliance (WECA, see http://www.wi-fi.net), an industry standard group promoting interoperability among 802.11 devices. The 802.11 standard offers two methods for configuring a wireless network - Ad-Hoc and infrastructure.

Infrastructure Mode

With a wireless Access Point, you can operate the wireless LAN in the infrastructure mode. This mode provides wireless connectivity to multiple wireless network devices within a fixed range or area of coverage, interacting with wireless nodes via an antenna.

In the infrastructure mode, the wireless access point converts airwave data into wired Ethernet data, acting as a bridge between the wired LAN and wireless clients. Connecting multiple Access Points via a wired Ethernet backbone can further extend the wireless network coverage. As a mobile computing device moves out of the range of one access point, it moves into the range of another. As a result, wireless clients can freely roam from one Access Point domain to another and still maintain seamless network connection.

Wireless Networking Basics

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NETGEAR WG311v3 manual Appendix B Wireless Networking Basics, Wireless Networking Overview, Infrastructure Mode
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WG311v3 specifications

The NETGEAR WG311v3 is a popular wireless PCI adapter designed to provide reliable Wi-Fi connectivity for desktop computers. This device enables users to connect to high-speed wireless networks, making it an ideal solution for both home and office environments.

One of the standout features of the NETGEAR WG311v3 is its compatibility with various wireless standards. It supports 802.11g, which allows for data transfer rates of up to 54 Mbps. Additionally, it is backward compatible with 802.11b devices, ensuring a seamless connection with older wireless technology. This versatility makes the WG311v3 a suitable choice for users looking to upgrade their network without worrying about compatibility issues.

The WG311v3 incorporates advanced wireless security protocols, including WEP, WPA, and WPA2. These security features help protect users' data and ensure a secure connection, safeguarding against potential unauthorized access. By providing multiple encryption options, the adapter allows users to select the level of security that best meets their needs, making it a reliable choice for sensitive information.

One notable characteristic of the NETGEAR WG311v3 is its easy installation process. The device comes with a user-friendly setup wizard that guides users through the installation, simplifying the transition to wireless networking. The PCI interface allows for quick installation inside the desktop computer, enabling users to be online in no time.

In terms of range and performance, the WG311v3 is designed to deliver optimal connectivity. With its external antenna, users can adjust the position for an improved signal strength, reducing dead zones within the coverage area. This feature is particularly beneficial in larger homes or office spaces where Wi-Fi signals may struggle to reach certain areas.

The NETGEAR WG311v3 is also notable for its affordability. As a cost-effective solution for adding wireless functionality to a desktop, it provides excellent value for those who need a reliable wireless connection without breaking the bank.

Overall, the NETGEAR WG311v3 wireless PCI adapter combines compatibility, security, and ease of installation to meet the demands of today's internet users. Whether for gaming, streaming, or general browsing, it delivers a dependable and efficient solution for expanding network capabilities in a desktop setting.
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