Wi-Fi Handbook : Building 802.11b Wireless Networks

office hotspots, 4, 261–262, 262

offset, frequency, 18

omnidirectional antennas, 43–45, 44, 238, 238

online video, 299–300

open access model of frequency spectrum, 324

open shortest path first (OSPF), 127

open system authentication, 28, 72–75, 73

Open System Interconnection (OSI) model

media access control (MAC) and, 26, 27

multiprotocol label switching (MPLS) in, 134–135

operation of wireless networks, 263–265

Orinoco, 71, 234, 235

orthogonal frequency division multiplexing (OFDM), 23–26, 50, 212

basic service set (BSS) in, 25–26

carrier multiplexing in, 25

carrier sense multiple access with collision avoidance (CSMA/CD) in, 25

code division multiple access (CDMA) in, 24

frequency division multiplexing (FDM) and, 25

independent BSS (IBSS) in, 25–26

interference and, 111

multilink point-to-point protocol (MPPP) in, 25

power management in, 25–26

time synchronization in, 25–26

outside plant, 4

overlapping channels, 229, 230