EE 802.11 subset standards, 341, 342, 343-344 network, 543 IEEE 802.11 system, 342-344 in troubleshooting, 543 IEEE 802.15 standard, 341, 344-347 hard-wired processor systems, 73 versus IEEE 802.11, 344-347 harmonics, 49 IEEE 802.16 standard, 341, 348-359 headends, CATV, 416, 431 MAC requirements for, 348-359 header error control (HEC) field, 519-520 reference model for, 348f henry (H), 588 request/grant scheme, 355 hertz (Hz), 24 IEEE LAN protocols. See ANSI/IEEE LAN Hertz, Heinrich, 24 protocols heterodyning, 80-81 impairments. See transmission system impairments, "hidden node" problem, 343 impedance (Z), 35, 600 hierarchical networks, 11, 12f coaxial cable, 34-35, 245 backbone of, 13f matching, 76-77 INDEX impedance (Z) (continued) intermediate data rate (IDR) carrier, QPSK mismatches, 187, 188 characteristics and transmission parameters for, implicit diversity, 476 impulse noise, 255, 269, 270, 271 intermediate frequency (IF), 203 in-band signaling, 151-152 intermodulation (IM) noise, 49-50, 269, 270 inbound links, VSAT, 231 intermodulation products, 49, 222, 434 independent basic service set (IBSS), 342 international connection bearer channel, controlled independent variables, 604 slip performance, 145 index of summation, 604 international connection links, 174f indirect route, 181 international connectivity, 13 inductance, 587-593 International Consultative Committee for Radio defined, 588 (CCIR), 15. See also CCIR 5-point picture inductive loading, 101 quality scale subscriber loop, 97-98 frequency plans, 216 of wire-pair trunks (junctions), 102-103 International Consultative Committee for inductive reactance, 597, 598-599 Telephone and Telegraph (CCITT), 15-16. See infinite traffic sources, 60 also CCITT entries information. See also communications error performance parameters, 143, 144 conveying via electrical signals, 19 out-of-band frequency, 152 encoded, 251 slip performance recommendations, 144-145 useful, 28-29 synchronization plans, 141-142 information bandwidth, radio system, 196 international dig