Kumar`s Security Slides
... * WEP uses RC4 which is a stream cipher * A stream cipher operates by expanding a short key into an infinite pseudo-random key stream. * The sender XORs the key stream with the plaintext to produce ciphertext. * The receiver has a copy of the same key, and uses it to generate identical key stream. ...
... * WEP uses RC4 which is a stream cipher * A stream cipher operates by expanding a short key into an infinite pseudo-random key stream. * The sender XORs the key stream with the plaintext to produce ciphertext. * The receiver has a copy of the same key, and uses it to generate identical key stream. ...
Lecture-02: Signals fundamentals
... Future Trends • LTE-Advanced and gigabit Wi-Fi now being deployed • LTU and associated research currently very active • Machine-to-machine communications – The “Internet of Things” – Devices interact with each other • Healthcare, disaster recovery, energy savings, security and surveillance, environ ...
... Future Trends • LTE-Advanced and gigabit Wi-Fi now being deployed • LTU and associated research currently very active • Machine-to-machine communications – The “Internet of Things” – Devices interact with each other • Healthcare, disaster recovery, energy savings, security and surveillance, environ ...
DownloadNotes - Department of Electronic Engineering
... Little overhead for error control Fixed packet (or cell) length Anything from 10Mbps to Gbps Constant data rate using packet switching technique ...
... Little overhead for error control Fixed packet (or cell) length Anything from 10Mbps to Gbps Constant data rate using packet switching technique ...
Standards for multimedia communications
... • The audio and video codecs each use a particular compression algorithm which is appropriate for the application and within the bandwidth limits provided by the network. • If the user data is shared between the various members of a conference, the application uses the services provided by a protoco ...
... • The audio and video codecs each use a particular compression algorithm which is appropriate for the application and within the bandwidth limits provided by the network. • If the user data is shared between the various members of a conference, the application uses the services provided by a protoco ...
presentation source - CECS Multimedia Communications
... America to those in Europe Many of them: A throughput of 128 kbps When these links connect two high-speed networks such as T1 or E-1 on opposite sides of the Atlantic: A significant bottleneck Internet users experience ...
... America to those in Europe Many of them: A throughput of 128 kbps When these links connect two high-speed networks such as T1 or E-1 on opposite sides of the Atlantic: A significant bottleneck Internet users experience ...
Week 1 - DePaul University
... connecting three LANs. Each device (computer or router) has a pair of addresses (logical and physical) for each connection. In this case, each computer is connected to only one link and therefore has only one pair of addresses. Each router, however, is connected to three networks (only two are shown ...
... connecting three LANs. Each device (computer or router) has a pair of addresses (logical and physical) for each connection. In this case, each computer is connected to only one link and therefore has only one pair of addresses. Each router, however, is connected to three networks (only two are shown ...
Business Data Communications 4e
... So, AP is the only device that is able to communicate with both computers. To solve the problem, AP uses controlled access method instead of the contention based method. A computer wanting to send packets must send a request (RTS) to AP. If no other computer is using the circuit, AP will respond w ...
... So, AP is the only device that is able to communicate with both computers. To solve the problem, AP uses controlled access method instead of the contention based method. A computer wanting to send packets must send a request (RTS) to AP. If no other computer is using the circuit, AP will respond w ...
What is Leased Line
... • Some internet service providers have therefore developed alternative products that aim to deliver leased-line type services (Carrier Ethernetbased, zero contention, guaranteed availability), with more moderate bandwidth, over the standard UK national broadband network. While a ...
... • Some internet service providers have therefore developed alternative products that aim to deliver leased-line type services (Carrier Ethernetbased, zero contention, guaranteed availability), with more moderate bandwidth, over the standard UK national broadband network. While a ...
William Stallings Data and Computer Communications
... May optimize the use of network services Provides quality of service based on acceptable error rates, maximum delay, priority, security Size and complexity depend on reliability of underlying layers Examples: connection-oriented TCP (transmission control protocol), connectionless UDP (user d ...
... May optimize the use of network services Provides quality of service based on acceptable error rates, maximum delay, priority, security Size and complexity depend on reliability of underlying layers Examples: connection-oriented TCP (transmission control protocol), connectionless UDP (user d ...
Trust, Privacy, and Security - Computer Science
... Q: Why to study Wireless & Mobile Computing? A: It is foundation for PERV, its critical technology & building block Some other technologies for Pervasive Computing: ...
... Q: Why to study Wireless & Mobile Computing? A: It is foundation for PERV, its critical technology & building block Some other technologies for Pervasive Computing: ...
Introduction - Eastern Illinois University
... from a software application in one computer moves through a medium to a software application in ...
... from a software application in one computer moves through a medium to a software application in ...
Chapter 18 Internet Protocols
... Multiplexing Between Levels • Upward or inward multiplexing —Multiple higher-level connections share single lowerlevel connection • More efficient use of lower-level service • Provides several higher-level connections where only single lower-level connection exists ...
... Multiplexing Between Levels • Upward or inward multiplexing —Multiple higher-level connections share single lowerlevel connection • More efficient use of lower-level service • Provides several higher-level connections where only single lower-level connection exists ...
Oracle Communications ASAP Product Overview
... both existing and future OSS and business support system (BSS) applications designed to handle nextgeneration services. This single flow-through activation platform addresses current and next-generation networks across multiple service and network domains. ...
... both existing and future OSS and business support system (BSS) applications designed to handle nextgeneration services. This single flow-through activation platform addresses current and next-generation networks across multiple service and network domains. ...
acceptable-use - Gateway Education
... Tettenhall College uses internet filtering software to minimise the possibility of students intentionally or otherwise accessing inappropriate materials. The filtering software in place uses white lists (allowed sites) and black lists (disallowed sites) in conjunction with a real time page scanning ...
... Tettenhall College uses internet filtering software to minimise the possibility of students intentionally or otherwise accessing inappropriate materials. The filtering software in place uses white lists (allowed sites) and black lists (disallowed sites) in conjunction with a real time page scanning ...
New Methods of Telephony Service
... SIP supports five facets of establishing and terminating multimedia communications: User location: determination of the end system to be used for communication; User capabilities: determination of the media and media parameters to be used; User availability: determination of the willingness of the c ...
... SIP supports five facets of establishing and terminating multimedia communications: User location: determination of the end system to be used for communication; User capabilities: determination of the media and media parameters to be used; User availability: determination of the willingness of the c ...
Network Operating Systems (1)
... Users may now view resources that are available from any servers as though they were being presented by a single source. Services are listed in organized in the database in a hierarchical matter much like the company's organizational chart. ...
... Users may now view resources that are available from any servers as though they were being presented by a single source. Services are listed in organized in the database in a hierarchical matter much like the company's organizational chart. ...
Alhadeff - The Public Voice
... consumer is to provision processing, storage, networks, and other fundamental computing resources where the consumer is able to deploy and run arbitrary software, which can include operating systems and applications. The consumer does not manage or control the underlying cloud infrastructure but has ...
... consumer is to provision processing, storage, networks, and other fundamental computing resources where the consumer is able to deploy and run arbitrary software, which can include operating systems and applications. The consumer does not manage or control the underlying cloud infrastructure but has ...
Cell Planning in GSM Mobile
... Short Message Service (SMS) is a great success story: several billion text message are being extended between mobile users each month. The dividing factor for new (and higher bandwidth) data services is the wireless access to the internet. The key technologies that have been introduced in GSM, the G ...
... Short Message Service (SMS) is a great success story: several billion text message are being extended between mobile users each month. The dividing factor for new (and higher bandwidth) data services is the wireless access to the internet. The key technologies that have been introduced in GSM, the G ...
Packet Radio
... • All packet networks work on a carrier sense, multiple access (CSMA) basis same as ethernet • Packet radio uses error correction, APRS does not ...
... • All packet networks work on a carrier sense, multiple access (CSMA) basis same as ethernet • Packet radio uses error correction, APRS does not ...
WiMAX Protocol - London South Bank University
... station fills the data to send to substation in the downstream subframe; the substations fill the data to send to the base station in the upstream subframe. ...
... station fills the data to send to substation in the downstream subframe; the substations fill the data to send to the base station in the upstream subframe. ...
Wireless and IP Communications Technician (CCC
... 09.04 Assess the performance of an ad hoc wireless network by calculating throughput. 09.05 Assess the performance of an infrastructure wireless network by calculating throughput. 09.06 Identify and discuss the design elements for creating an extended service set. 09.07 Differentiate between layer-t ...
... 09.04 Assess the performance of an ad hoc wireless network by calculating throughput. 09.05 Assess the performance of an infrastructure wireless network by calculating throughput. 09.06 Identify and discuss the design elements for creating an extended service set. 09.07 Differentiate between layer-t ...
No Slide Title
... ATM supports two types of connections: – Point-to-point, which connects two ATM end systems and can be unidirectional (one-way communication) or bidirectional (two-way communication). – Point-to-multipoint connects a single-source end system (known as the root node) to multiple destination end sys ...
... ATM supports two types of connections: – Point-to-point, which connects two ATM end systems and can be unidirectional (one-way communication) or bidirectional (two-way communication). – Point-to-multipoint connects a single-source end system (known as the root node) to multiple destination end sys ...
A. Introduction
... • Switched LAN systems are being introduced — switched Ethernet (most common) • may be single or multiple switches — ATM LAN • Wireless LANs ...
... • Switched LAN systems are being introduced — switched Ethernet (most common) • may be single or multiple switches — ATM LAN • Wireless LANs ...
Moving beyond TCP
... data could be passed between two points, a connection had to be set up. What differed from the connection oriented telephone network was that the actual network capacity was only consumed on demand, not merely by having a connection present. But NCP was also a very rigid protocol, designed to ensur ...
... data could be passed between two points, a connection had to be set up. What differed from the connection oriented telephone network was that the actual network capacity was only consumed on demand, not merely by having a connection present. But NCP was also a very rigid protocol, designed to ensur ...
internet2 network
... Engineering and Operations • Evolved from the current Abilene Engineering/NOC at Indiana University and ...
... Engineering and Operations • Evolved from the current Abilene Engineering/NOC at Indiana University and ...