LevelOne 11g USB Adapter w/LCD WiFi Detector Troubleshooting, What is the Ieee 802.11g standard?

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7 Troubleshooting

This chapter provides solutions to problems usually encountered during the installation and operation of the adapter.

1. What is the IEEE 802.11g standard?

802.11g is the new IEEE standard for high-speed wireless LAN communications that provides for up to 54 Mbps data rate in the 2.4 GHz band. 802.11g is quickly becoming the next mainstream wireless LAN technology for the home, office and public networks.

802.11g defines the use of the same OFDM modulation technique specified in IEEE 802.11a for the 5 GHz frequency band and applies it in the same 2.4 GHz frequency band as IEEE 802.11b. The 802.11g standard requires backward compatibility with 802.11b.

The standard specifically calls for:

A.A new physical layer for the 802.11 Medium Access Control (MAC) in the 2.4 GHz frequency band, known as the extended rate PHY (ERP). The ERP adds OFDM as a mandatory new coding scheme for 6, 12 and 24 Mbps (mandatory speeds), and 18, 36, 48 and 54 Mbps (optional speeds). The ERP includes the modulation schemes found in 802.11b including CCK for 11 and 5.5 Mbps and Barker code modulation for 2 and 1 Mbps.

B.A protection mechanism called RTS/CTS that governs how 802.11g devices and 802.11b devices interoperate.

2.What is the IEEE 802.11b standard

The IEEE 802.11b Wireless LAN standard subcommittee, which formulates the standard for the industry. The objective is to enable wireless LAN hardware from different manufactures to communicate.

3. What does IEEE 802.11 feature support

The product supports the following IEEE 802.11 functions:

zCSMA/CA plus Acknowledge Protocol

zMulti-Channel Roaming

zAutomatic Rate Selection

zRTS/CTS Feature

zFragmentation

zPower Management

4.What is Ad-hoc

An Ad-hoc integrated wireless LAN is a group of computers, each has a Wireless LAN adapter, Connected as an independent wireless LAN. Ad hoc wireless LAN is applicable at a departmental scale for a branch or SOHO operation.

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Contents LevelOne Contents Introduction FeaturesSpecifications Package Contents How to charge the battery of Wi-Fi Detector How to use the Wi-Fi Detector Page Seek/Lock Install the Configuration Utility How to install the driver and utilityPage Page Install the USB adapter Click Finish to complete the installation First Way Using the Configuration UtilitySecond Way How to configure the utility Wireless Connection Status Bssid General Connection Setting Ssid Page WEP and WPA Encryption WEP SettingPage Page 2 WPA/WPA2 Setting Page WEP KEY Setting Continuous Access Mode CAM The adapter will always set Advanced SettingsMaximum Power-Saving mode AP Connection Status Software AP ModeAP General Connection Setting WEP Should use the shorter preamble type MAC Address Filter Link Installation Page Page Page Page What is the Ieee 802.11g standard? TroubleshootingWhat is the Ieee 802.11b standard? What does Ieee 802.11 feature support?What is BSS ID? What is Infrastructure?What is WEP? What is TKIP?What is Spread Spectrum? What is DSSS?What is FHSS?And what are their differences?What is the maximum AP that can be detected? What is the maximum detection distance?