Glossary - Nera WILINK I System Manual

AAA
Authentication, Authorization, and Accounting (Pronounced "triple a."). A
system (or several systems) that controls what resources users have access
to, and keeps track of the activity of users over the network.
American National Standards Institute. A voluntary organization composed
ANSI
of corporate, government, and other members that coordinates standards-
related activities, approves U.S. national standards, and develops positions
for the United States in international standards organizations.
ARP Address Resolution Protocol. Internet protocol used to map an IP address to
a MAC address. Defined in RFC 826.
ARQ Automatic Repeat reQuest. A communication technique in which the
receiving device detects errors and requests retransmissions.
ASCII American Standard Code for Information Interchange. A code for
representing English characters as numbers, with each letter assigned a
number from 0 to 127.
ATM Asynchronous Transfer Mode. A network technology that dynamically
allocates bandwidth. ATM uses fixed-size data packets and a fixed channel
between two points for data transfer. ATM was designed to support multiple
services such as voice, graphics, data, and full-motion video. It allows
service providers to dynamically assign bandwidth to individual customers.
ATPC Automatic Transmit Power Control
AU Access Unit
Air Ventilation Unit
AVU
BE Best effort. A service where neither throughput nor delay guarantees are
provided. The subscriber unit sends requests for bandwidth in either
random access slots or dedicated transmission opportunities. The
occurrence of dedicated opportunities is subject to network load, and the
subscriber unit cannot rely on their presence. Service parameters include
Committed Time (CT) and Maximum Information Rate (MIR).
BER Bit Error Rate. In a digital transmission, BER is the percentage of bits with
errors divided by the total number of bits that have been transmitted,
received or processed over a given time period.

Glossary