Datacommunication and networking: animations and java applets

ADSL transmission applet Java applets simulate here ADSL-like transmissions ... Basically ADSL uses multiple carrier modulation : multiple QAM (Quadrature Amplitude modulation)

Amplitude Shift Keying (ASK) modulation

Binary Huffman Coding demonstration Binary Huffman Coding demonstration

Carrier Sense Multiple Access (CSMA)

Carrier Sense Multiple Access (CSMA/CD)

Channel capacity channel capacity calculation, Nyquist's channel capacity, Shannon's channel capacity, Hamming code part of Networking exercises Introduction to Telematics Systems

Circuit Switching-Half Duplex

Circuit Switching-Full Duplex

Codage d'information sur un canal de transmission

CRC-8 Calculator This applet calculates the CRC-8, C(x) = x8 + x2 + x + 1, polynomial

CRC calculation CRC calculation, CRC calculator, CRC parameters, CRC order, CRC polynom

CRC code Generator of synthesizable CRC functions, g(x)=1+x^5+x^12+x^16

CRC code simulation Cyclic Code Encoder / Decoder simulator

Frequency Shift Keying (FSK) Modulation

Hamming code Hamming code animation

Hamming decoding Hamming decoding animation

Huffman Animation

Huffman code

PCM Pulse Code Modulation

Phase Shift Keying (PSK) Modulation

RIP protocol demonstrates how the rip protocol works on a network of hosts (routers) which are connected by serial lines. The protocol works just about the same if the connecting media is a broadcast media like Ethernet

Row and Column Parity Checking

RS 232

RS232 transmitter demo This applet demonstrates the transmitter part of a serial communications interface. The circuit converts incoming 8-bit ASCII (or rather ISO-8859-1) data into a serial RS-232 protocol data stream at 1200 baud

Shannon's Experiment to Calculate the Entropy of English Claude Shannon, the inventor of information theory, devised an experiment aimed at determining the entropy of an English letter (the amount of information in bits that we obtain on the average when we learn one letter of English)

Telecom Traffic Calculators

Text compression using Huffman encoding

Time Division Multiplexing (TDM)

Transmission Modes (Simplex, Half-Duplex, Full-Duplex)

Horizontaal

Networking animations

APR (Arp Poison Routing)

Client server animation in Flash An animation that demonstrates communication over an internet. A client is selected to communicate with a selected server. There are servers at different locations on the net – local and remote

DNS Animated This site contains an animated flash tutorial and a program that will try to explain what DNS is and how it works

Ethernet Bus The Basic Ethernet Bus

Firewall- Packet Filtering

Interaction in a Client-Server Architecture

Internet datacommunication

IP Protocol - Datagrams may Arrive Out-of-Order

IP Protocol - Datagrams may be Lost

IP Routing Simulation

Load Balancing

Network Address Translation - NAT Network Address Translation - NAT

Network Address Translation - NAT

Network router illustrates how routing decisions are made