Definition articles

Multi-Access Edge Computing

Technique to allow a UE (User Equipment) to access services which are hosted close to the serving base station. It brings application hosting from centralized data centers down…

Multi-Key

Term used when separate encryption key is assigned to each video tracks and audio track per content.  For example, separate content keys may be used for each category…

Multicast

A one-to-many network traffic distribution mechanism. Multicast stands in contrast to unicast (one-to-one) network traffic transactions.  Broadcast (one-to-all) is the other traffic delivery scheme which is only used…

Multicast ABR

Technology which permits to multicast media objects that are common in HTTP-based streaming protocols. In one instantiation, it is composed of two components: one server to create a…

NDA

Non-disclosure agreement

NetEm

Network Emulator

Network Time Protocol (NTP)

Network Time Protocol is a protocol used to synchronize the clocks of computers or other devices within a network.

Non-Live Content

Non-live content is video content that is not meant to be watched in real time as it is happening (see Live Content). Examples include a movie, a show…

NSA

Non-standalone network

Objective Perceptual Video Quality

A Perceptual Video Quality (PVQ) evaluation technique, based on mathematical models, where computer algorithms rate the quality of the video, i.e., video quality is not rated by human…

On-Demand Programming

OTP

One-Time Password – Often sent via SMS or email.

Over-the-Top (OTT)

Over-The-Top (OTT) is a term used to describe video services which are taking leverage of the user internet access. It can be either deployed over managed or non…

PCC

Performance-oriented Congestion Control

Perceptual Video Quality

Measure of visual quality of video content as perceived by viewers. Poor PVQ can impact QoE. Poor QoS can impact PVQ. The perceived video quality can be evaluated…

Placement Opportunity

A time in an Ad Break where an ad insertion–or a replacement or delection of existing baked-in ad–can occur. An Ad Break can consist of one or more…

Placement Opportunity Information Service

The Placement Opportunity Information Service (POIS) provides an interface to a repository of descriptions of opportunities for placement of content within an audio/video stream. Frequently these specify opportunities…

Platform

Environment within which an application executes – the device operating system or the browser environment.