FTTH

fiber to the home


GEOS

geo-synchronous orbit satellites


HDSL

high-speed digital subscriber line

HDTV

high definition television

HFC

hybrid fiber coax

HPNA

Home Phone Networking Alliance


IEEE

Institute of Electrical and Electronics Engineers

IETF

Internet Engineering Task Force

ILEC

incumbent local exchange carrier

IP

Internet protocol

ISDN

integrated services digital network

ISP

Internet service provider

ITU

International Telecommunication Union


LAN

local area network

LEC

local exchange carrier

LEOS

low earth orbit satellites

LMDS

local multipoint distribution services

LOS

line of sight


MAC

medium access control

MDUs

multi-dwelling units

MIMO

multiple in, multiple out

MMDS

multipoint multichannel distribution service

MSO

multiple system operator


NEXT

near end cross talk

NII

national information infrastructure

NSF

National Science Foundation

NSP

native signal processor

NTIA

National Telecommunications and Information Administration


OFDM

orthogonal frequency division multiplexing


PCS

personal communications service

PEG

public, educational, and government

PON

passive optical network

POTS

plain old telephone service

PPP

point-to-point protocol

PSD

power spectral density


QAM

quadrature amplitude modulation

QOS

quality of service


RADSL

rate adaptive digital subscriber line

RF

radio frequency

RLP

radio link protocol


SDMI

Secure Digital Music Initiative

SDSL

symmetric digital subscriber line

SDTV

standard definition television



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