Radio networks. Computer and Network Examples

"A communications satellite or comsat is an artificial satellite sent to space for the purpose of telecommunications. Modern communications satellites use a variety of orbits including geostationary orbits, Molniya orbits, elliptical orbits and low (polar and non-polar) Earth orbits.
For fixed (point-to-point) services, communications satellites provide a microwave radio relay technology complementary to that of communication cables. They are also used for mobile applications such as communications to ships, vehicles, planes and hand-held terminals, and for TV and radio broadcasting." [Communications satellite. Wikipedia]
"Satellite telecommunication services:
Satellite crop monitoring,
Satellite Internet access,
Satellite navigation,
Satellite phone,
Satellite radio,
Satellite television." [Satellite. Wikipedia]
This hybrid satellite and common carrier network diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Telecommunication Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.

This diagram sample illustrates the cooperative vehicular delay-tolerant network operation.
"Delay-tolerant networking (DTN) is an approach to computer network architecture that seeks to address the technical issues in heterogeneous networks that may lack continuous network connectivity. Examples of such networks are those operating in mobile or extreme terrestrial environments, or planned networks in space.
Recently, the term disruption-tolerant networking has gained currency in the United States due to support from DARPA, which has funded many DTN projects. Disruption may occur because of the limits of wireless radio range, sparsity of mobile nodes, energy resources, attack, and noise." [Delay-tolerant networking. Wikipedia]
"Routing in delay-tolerant networking concerns itself with the ability to transport, or route, data from a source to a destination, which is a fundamental ability all communication networks must have. Delay- and disruption-tolerant networks (DTNs) are characterized by their lack of connectivity, resulting in a lack of instantaneous end-to-end paths. In these challenging environments, popular ad hoc routing protocols such as AODV and DSR fail to establish routes. This is due to these protocols trying to first establish a complete route and then, after the route has been established, forward the actual data. However, when instantaneous end-to-end paths are difficult or impossible to establish, routing protocols must take to a "store and forward" approach, where data is incrementally moved and stored throughout the network in hopes that it will eventually reach its destination. A common technique used to maximize the probability of a message being successfully transferred is to replicate many copies of the message in hopes that one will succeed in reaching its destination." [Routing in delay-tolerant networking. Wikipedia]
The example "Cooperative vehicular delay-tolerant network diagram" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Vehicular Networking solution from the Computer and Networks area of ConceptDraw Solution Park.

"General packet radio service (GPRS) is a packet oriented mobile data service on the 2G and 3G cellular communication system's global system for mobile communications (GSM). GPRS was originally standardized by European Telecommunications Standards Institute (ETSI) in response to the earlier CDPD and i-mode packet-switched cellular technologies. It is now maintained by the 3rd Generation Partnership Project (3GPP).
GPRS usage is typically charged based on volume of data transferred, contrasting with circuit switched data, which is usually billed per minute of connection time. Usage above the bundle cap is either charged per megabyte or disallowed.
GPRS is a best-effort service, implying variable throughput and latency that depend on the number of other users sharing the service concurrently, as opposed to circuit switching, where a certain quality of service (QoS) is guaranteed during the connection. In 2G systems, GPRS provides data rates of 56–114 kbit/ second. 2G cellular technology combined with GPRS is sometimes described as 2.5G, that is, a technology between the second (2G) and third (3G) generations of mobile telephony. It provides moderate-speed data transfer, by using unused time division multiple access (TDMA) channels in, for example, the GSM system. GPRS is integrated into GSM Release 97 and newer releases." [General Packet Radio Service. Wikipedia]
This GPRS network diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Telecommunication Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.

"Mobile satellite systems help connect remote regions, vehicles, ships, people and aircraft to other parts of the world and/ or other mobile or stationary communications units, in addition to serving as navigation systems." [Satellite. Mobile satellite systems. Wikipedia]
"A communications satellite or comsat is an artificial satellite sent to space for the purpose of telecommunications.
... communications satellites ... are ... used for mobile applications such as communications to ships, vehicles, planes and hand-held terminals, and for TV and radio broadcasting." [Communications satellite. Wikipedia]
This mobile satellite communication network diagram was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Telecommunication Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.

This global vehicular network diagram sample represents the independent regional telematics network.
"Telematics typically is any integrated use of telecommunications and informatics, also known as ICT (Information and Communications Technology). Hence the application of telematics is with any of the following:
(1) The technology of sending, receiving and storing information via telecommunication devices in conjunction with affecting control on remote objects.
(2) The integrated use of telecommunications and informatics, for application in vehicles and with control of vehicles on the move.
(3) Telematics includes but is not limited to Global Positioning System technology integrated with computers and mobile communications technology in automotive navigation systems. ...
Practical applications of vehicle telematics:
1. Vehicle tracking is a way of monitoring the location, movements, status and behaviour of a vehicle or fleet of vehicles. ...
2. Trailer tracking is the technology of tracking the movements and position of an articulated vehicle's trailer unit...
3. Container tracking. Freight containers can be tracked by GPS...
4. Cold store freight trailers ... used to deliver fresh or frozen foods are ... incorporating telematics to gather time-series data on the temperature inside the cargo container...
5. Fleet management includes the management of ships and or motor vehicles such as cars, vans and trucks. Fleet ... Management can include ... vehicle telematics (tracking and diagnostics)...
6. Satellite navigation in the context of vehicle telematics is the technology of using a GPS and electronic mapping tool to enable the driver of a vehicle to locate a position, plan a route and navigate a journey.
7. Mobile data is the use of wireless data communications using radio waves to send and receive real time computer data to, from and between devices used by field based personnel. ...
8. Wireless vehicle safety communications telematics aid in car safety and road safety. ...
9. Emergency warning system for vehicles. Telematics ... are self-orientating open network architecture structures of variable programmable intelligent beacons ... to accord ... warning information with surrounding vehicles in the vicinity of travel, intra-vehicle, and infrastructure. ...
10. Intelligent vehicle technologies. Telematics comprise electronic ... devices ... to provide precision repeatability functions ... emergency warning validation performance reconstruction. ...
11. Car clubs. Telematics-enabled computers allow organizers to track members' usage and bill them on a pay-as-you-drive basis. ...
12. Auto insurance. The basic idea of telematic auto insurance is that a driver's behavior is monitored directly while the person drives and this information is transmitted to an insurance company." [Telematics. Wikipedia]
The example "Independent regional networks diagram" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Vehicular Networking solution from the Computer and Networks area of ConceptDraw Solution Park.

This network diagram sample depicts usage of wireless access point.
"In computer networking, a wireless access point (AP) is a device that allows wireless devices to connect to a wired network using Wi-Fi, or related standards. The AP usually connects to a router (via a wired network) as a standalone device, but it can also be an integral component of the router itself. ...
With the creation of the wireless Access Point (AP), network users are now able to add devices that access the network with few or no cables. An AP normally connects directly to a wired Ethernet connection and the AP then provides wireless connections using radio frequency links for other devices to utilize that wired connection. Most APs support the connection of multiple wireless devices to one wired connection. Modern APs are built to support a standard for sending and receiving data using, these radio frequencies. Those standards, and the frequencies they use are defined by the IEEE. Most APs use IEEE 802.11 standards." [Wireless access point. Wikipedia]
The wireless network diagram example "Wireless access point" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Wireless Networks solution from the Computer and Networks area of ConceptDraw Solution Park.

"Media (singular medium) are the storage and transmission channels or tools used to store and deliver information or data. It is often referred to as synonymous with mass media or news media, but may refer to any means of information communication. ...
Analog telecommunications include some radio systems, historical telephony systems, and historical TV broadcasts.
Digital telecommunications allow for computer-mediated communication, telegraphy, and computer networks.
Modern communication media now allow for intense long-distance exchanges between larger numbers of people (many-to-many communication via e-mail, Internet forums, and teleportation). On the other hand, many traditional broadcast media and mass media favor one-to-many communication (television, cinema, radio, newspaper, magazines, and also facebook)." [Media (communication). Wikipedia]
This communication medium diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Telecommunication Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.