Canyon CN-WF518 User Manual

Contents

Canyon CN-WF518 User Manual Manual pdf 28 page image

234 TroubleshootingThis chapter provides solutions to problems usually encountered during the installation andoperation of the adapter.1. What is the IEEE 802.11g standard?802.11g is the new IEEE standard for high-speed wireless LAN communications thatprovides for up to 54 Mbps data rate in the 2.4 GHz band. 802.11g is quickly becomingthe 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 IEEE802.11a for the 5 GHz frequency band and applies it in the same 2.4 GHz frequencyband as IEEE 802.11b. The 802.11g standard requires backward compatibility with802.11b.The standard specifically calls for:A. A new physical layer for the 802.11 Medium Access Control (MAC) in the 2.4 GHzfrequency band, known as the extended rate PHY (ERP). The ERP adds OFDM asa mandatory new coding scheme for 6, 12 and 24 Mbps (mandatory speeds), and18, 36, 48 and 54 Mbps (optional speeds). The ERP includes the modulationschemes found in 802.11b including CCK for 11 and 5.5 Mbps and Barker codemodulation for 2 and 1 Mbps.B. A protection mechanism called RTS/CTS that governs how 802.11g devices and802.11b devices interoperate.2. What is the IEEE 802.11b standardThe IEEE 802.11b Wireless LAN standard subcommittee, which formulates thestandard for the industry. The objective is to enable wireless LAN hardware fromdifferent manufactures to communicate.3. What does IEEE 802.11 feature supportThe product supports the following IEEE 802.11 functions:z CSMA/CA plus Acknowledge Protocolz Multi-Channel Roamingz Automatic Rate Selectionz RTS/CTS Featurez Fragmentationz Power Management4. What is Ad-hocAn Ad-hoc integrated wireless LAN is a group of computers, each has a Wireless LANadapter, Connected as an independent wireless LAN. Ad hoc wireless LAN isapplicable at a departmental scale for a branch or SOHO operation.

/ 30

Related manuals for Canyon CN-WF518