Point-to-multipoint in the context of "Closed-circuit television"

Play Trivia Questions online!

 or

Skip to study material about Point-to-multipoint in the context of "Closed-circuit television"
Ad spacer

⭐ Core Definition: Point-to-multipoint

In telecommunications, point-to-multipoint communication (P2MP, PTMP or PMP) is communication which is accomplished via a distinct type of one-to-many connection, providing multiple paths from a single location to multiple locations.

Point-to-multipoint telecommunications is typically used in wireless Internet and IP telephony via gigahertz radio frequencies. P2MP systems have been designed with and without a return channel from the multiple receivers. A central antenna or antenna array broadcasts to several receiving antennas and the system uses a form of time-division multiplexing to allow for the return channel traffic.

↓ Menu

>>>PUT SHARE BUTTONS HERE<<<

👉 Point-to-multipoint in the context of Closed-circuit television

Closed-circuit television (CCTV), also known as video surveillance, is the use of closed-circuit television cameras to transmit a signal to a specific place on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point, point-to-multipoint (P2MP), or mesh wired or wireless links. Even though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that require additional security or ongoing monitoring (videotelephony is seldom called "CCTV").

The deployment of this technology has facilitated significant growth in state surveillance, a substantial rise in the methods of advanced social monitoring and control, and a host of crime prevention measures throughout the world. Though surveillance of the public using CCTV cameras is common in many areas around the world, video surveillance has generated significant debate about balancing its use with individuals' right to privacy even when in public.

↓ Explore More Topics
In this Dossier

Point-to-multipoint in the context of Data communication

Data communication is the transfer of data over a point-to-point or point-to-multipoint communication channel. Data communication comprises data transmission and data reception and can be classified as analog transmission and digital communications.

Analog data communication conveys voice, data, image, signal or video information using a continuous signal, which varies in amplitude, phase, or some other property. In baseband analog transmission, messages are represented by a sequence of pulses by means of a line code; in passband analog transmission, they are communicated by a limited set of continuously varying waveforms, using a digital modulation method. Passband modulation and demodulation is carried out by modem equipment.

↑ Return to Menu

Point-to-multipoint in the context of Point-to-point (telecommunications)

In telecommunications, a point-to-point connection is a communications connection between two communication endpoints or nodes. An example is a telephone call, in which one telephone is connected with one other, and what is said by one caller can only be heard by the other. This is contrasted with a point-to-multipoint or broadcast connection, in which many nodes can receive information transmitted by one node. Other examples of point-to-point communications links are leased lines and microwave radio relay.

The term is also used in computer networking and computer architecture to refer to a wire or other connection that links only two computers or circuits, as opposed to other network topologies such as buses or crossbar switches which can connect many communications devices.

↑ Return to Menu
LINKED FROM (PARENTS)
← Data communication ← Data transmission ← Closed-circuit television ← Point-to-point (telecommunications) ← Digital communications
LINKS TO (CHILDREN)
Wireless internet service provider → Rotterdam → Sector antenna → Customer-premises equipment → Telecommunications → Communication → One-to-many (data model) → Wireless Internet → IP telephony → Gigahertz → Radio frequencies → Return channel → Antenna array → Time-division multiplexing →