11G WIRELESS LAN SYSTEMS TO ALLOW BACKWARD COMPATIBILITY AND COEXI...
802.11g wireless LAN systems to allow backward compatibility and coexistence between ERP, DSSS, and HR/DSSS wireless devices.Extended Rate Physical Orthogonal Frequency Division Multiplexing (ERP-OFDM) Required ERP modulation specified by the 802.11g amendment.extended service set One or more interconnected basic service sets connected to a com-mon distribution system.Extended Service Set Identifier (ESSID) Another term for Service Set Identifier (SSID) used by manufacturers to identify the name of a wireless network. This term is not defined by the IEEE 802.11 standard.Extensible Authentication Protocol (EAP) Used in wireless networks as an authentication process to allow access to network resources. EAP is available in various types, which include user and certificate authentication.
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Federal Communications Commission (FCC) The regulatory body that manages RF spectrum for the United States of America.firewall Security hardware or software solutions to allow or disallow access to specific networking services, protocols, or ports.firmware An instruction set that allows hardware to operate based on the design—essen-tially, software for hardware.48 VDC The nominal amount of voltage supplied to 802.3af Power over Ethernet (PoE) devices.38893bgloss.indd 432
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Glossary 433Frequency-Hopping Spread Spectrum (FHSS) A spread spectrum technology used in IEEE 802.11 with data rates of 1 and 2 Mbps and hops across the ISM band from 2.402 to