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PPT_ch06
PPT_ch06

... • A signal may pass through an object, be absorbed by the object, or it may be subject to any of the following: reflection, diffraction, or scattering • Personal area networks (PANs) rarely exceed a few meters and usually only contain a few personal devices • Bluetooth technology unites mobile devic ...
5G radio network architecture
5G radio network architecture

... of the finals users. On the other hand, some communication strategies require high computational burden at the terminal side having negative impact on battery lifetime. Hence, the intelligent use of energy becomes a major new target in addition to the classical design criteria. Currently two approac ...
NETWORKING LAB -
NETWORKING LAB -

... Local Area Network (LAN) - A network of computers that are in the same general physical location, usually within a building or a campus. If the computers are far apart (such as across town or in different cities), then a Wide Area Network (WAN) is typically used. Network Interface Card (NIC) - Every ...
Why Network Computers?
Why Network Computers?

... communication between all connected devices. However in new installations switches should be used instead of hubs as they are more effective and provide better performance. Switches Switches are the more recent technology and the accepted way of building today's networks. They are essentially high-s ...
Intro - University of Pittsburgh
Intro - University of Pittsburgh

...  Optical light, electricity, and radio waves ...
LanDisk FTP Help
LanDisk FTP Help

... decide user’s access right Click “Add/Modify” after user information input. Then Folder list will be able to Add to or Delete from Allowed share list. Add folders you allow this user to access. Click “Back to account list” when you are done with this user ...
TCP/IP protokolu kopa
TCP/IP protokolu kopa

... The Internet Architecture Board (IAB) is the technical advisory group of ISOC, and responsible for setting standards, publishing RFCs and overseeing the Internet Standards process. RFCs. A document written by anyone, a standard suggestion, read and tested by the ISOC. Each RFC is assigned a number. ...
Network - Moodle
Network - Moodle

... • Commonly built into laptops and now many home devices (e.g. PS3/4) • Need nearby access point (e.g. WiFi cable modem) ~30-50m • Unencrypted or unprotected WiFi connections can pose serious security risk ...
16-port 10m/100m soho fast ethernet switch ggm ne816x
16-port 10m/100m soho fast ethernet switch ggm ne816x

Digital Wireless Communications Course Informations
Digital Wireless Communications Course Informations

...  The energy consumption of cellular networks is growing rapidly with increasing data rates and numbers of users  Operators are experiencing increasing and volatile costs of energy to run their networks  There is a push for “green” innovation in most sectors of information and communication techno ...
88KB - NZQA
88KB - NZQA

... which are assessing against unit standards must engage with the moderation system that applies to those standards. Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR also incl ...
Connectivity
Connectivity

... – Uplink port: allows connection to another hub or other connectivity device – On Ethernet networks, can serve as central connection point of star or star-based hybrid topology – On Token Ring networks, hubs are called Multistation Access Units (MAUs) ...
Computer Networks
Computer Networks

... 31. What is the difference between TFTP and FTP application layer protocols? The Trivial File Transfer Protocol (TFTP) allows a local host to obtain files from a remote host but does not provide reliability or security. It uses the fundamental packet delivery services offered by UDP. The File Transf ...
An Inter-domain - Distributed Systems and Networks Lab
An Inter-domain - Distributed Systems and Networks Lab

... [12], [13], [14]. A hybrid approach that achieves the same connectivity as in pro-active protocols but with less overhead was proposed in [15]. These schemes usually share similarities with MIP and although they are suitable for ad-hoc networks, they do not perform well in wireless mesh networks. Ba ...
Chapter 6 slides, Computer Networking, 3rd edition
Chapter 6 slides, Computer Networking, 3rd edition

... transmitter and the receiver. In addition, MIMO technology requires a separate radiofrequency chain and analog-to-digital converter for each MIMO antenna, making it more expensive to implement than non-MIMO systems. Increases distances too. Channels operating with a width of 40 MHz are another featu ...
Multiservice provision in wireless mobile environments
Multiservice provision in wireless mobile environments

... (IGSN) sends information to AAA-server and HLR Services are negotiated end-to-end, also outside the service network Necessity of dynamic restoring service shared knowledge inside mobile device ...
ppt - ICEBERG Project
ppt - ICEBERG Project

... – Develop services on Internet (not Telco) time – Scalable, robust, secure architecture – Support third-party providers ...
Lecture 5
Lecture 5

... to intervene and break up a network. Class A, B, and C are still assigned, but the administrator can make the network smaller as s/he feels is necessary. If there are 20 computers in an office in San Francisco and 20 in an office in New York. Only one class C is necessary and can be broken down into ...
ch01
ch01

... The Internet has revolutionized many aspects of our daily lives. It has affected the way we do business as well as the way we spend our leisure time. The Internet is a communication system that has brought a wealth of information to our fingertips and organized it for our use. ...
5 The Access Point Name and its resolution
5 The Access Point Name and its resolution

... The user dials the E.164 number of the Network Access Server (NAS) of their home mobile operator. This E.164 number may be stored in the mobile phone and dialled “invisibly” to the user. The NAS is connected via the home operator’s private IP network to a WAP gateway and an Internet gateway. The RAD ...
Презентация PowerPoint - Wireless | T/ICT4D Lab
Презентация PowerPoint - Wireless | T/ICT4D Lab

... gov – government (body or agency of a government entity org – organization (entity, which does not fall clearly into any mentioned categories) ...
Computer Networks - Lynchburg College
Computer Networks - Lynchburg College

... address) requesting the Ethernet address of the corresponding host • The destination host responds by sending its Ethernet address to the source host • The destination host sends the data to the destination and records the IP/Ethernet address pair in a cache for future use. • Cache entries time-out ...
Mobile Computing Seminar Technologies and standards in wireless
Mobile Computing Seminar Technologies and standards in wireless

... with 802.11b. The maximum data rate is 723kbit/s asymmetric, or 433kbit/s symmetric. Bluetooth units communicating on a common frequency-hopping channel form a piconet. In a piconet there is 1 master and up to 7 slaves, with 255 more in parked mode. Slaves never communicate directly with each other, ...
01.1-Overview
01.1-Overview

... detailed regional usage information. (3) Demographic (Population) numbers are based on data from the US Census Bureau and local census agencies. (4) Internet usage information comes from data published by Nielsen Online, by the International Telecommunications Union, by GfK, local Regulators and oth ...
Ethernet - Mt. Hood Community College
Ethernet - Mt. Hood Community College

... Vertically and high up. In locations where users will work. But not too close to people. Work out the coverage for each AP. Allow enough overlap. 25-May-17 ...
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Piggybacking (Internet access)

Piggybacking on Internet access is the practice of establishing a wireless Internet connection by using another subscriber's wireless Internet access service without the subscriber's explicit permission or knowledge. It is a legally and ethically controversial practice, with laws that vary by jurisdiction around the world. While completely outlawed or regulated in some places, it is permitted in others.A customer of a business providing hotspot service, such as a hotel or café, is generally not considered to be piggybacking, though non-customers or those outside the premises who are simply in reach may be. Many such locations provide wireless Internet access as a free or paid-for courtesy to their patrons or simply to draw people to the area. Others near the premises may be able to gain access.Piggybacking is distinct from wardriving, which involves only the logging or mapping of the existence of access points.
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