Digital Communication

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About Course

Digital communications are the physical transfer of data(a digital bitstream) over a point-to-point or point-to-multipoint transmission medium.

Examples of such media are copper wires, optical fibers, wireless communication media, and storage media. The data is often represented as an electromagnetic signal, such as an electrical voltage signal or an infra-red signal.

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Data transmitted may be digital messages originating from a data source, for example, a computer or a keyboard. It may also be an analog signal such as a phone call or a video signal, digitized into a bit-stream for example using pulse-code modulation(PCM) or more advanced source coding(data compression) schemes. This source coding and decoding are carried out by codec equipment.

Digital communication enables the data to be transmitted efficiently through the use of digitally encoded information sent through data signals. These data signals are easily compressed and, as such, can be transmitted with accuracy and speed.

 

Advantage of Digital Communication:

a). It is fast and easier.

b). No paper is wasted.

c). The messages can be stored in the device for longer times, without being damaged, unlike paper files that easily get damaged or attacked by insects.

d). Digital communication can be done over large distances through the internet and other things.

e). It is comparatively cheaper and the work which requires a lot of people can be done simply by one person as folders and other such facilities can be maintained.

f). It removes semantic barriers because the written data can be easily changed to different languages using the software.

g). It provides facilities like video conferencing which saves a lot of time, money, and effort.

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Course Content

Digital Communication

  • Advantages and disadvantages of digital communication
    10:57
  • Scrambling basics, importance & working of scrambling at transmitter and receiver
    00:00
  • Example on Scrambling in Digital Communication
    00:00
  • Regenerative repeater objectives, basics, working & block diagram
    00:00
  • Eye Diagram Basics, Example, Pattern & Interpretation of Eye Diagram
    00:00
  • Attenuation of Signal and Significance of Decibels dB with Example
    00:00
  • Bit Rate and Baud Rate definition, relation, parameters & examples
    00:00
  • Amplitude Shift Keying ASK (Basics, Definition, Waveform, Bandwidth, Modulation and Demodulation)
    00:00
  • Example on ASK Amplitude Shift Keying
    00:00
  • Frequency Shift Keying FSK (definition, waveform, multi level FSK, Bandwidth, Modulator & Demodulati
    00:00
  • Examples on FSK Frequency Shift Keying
    00:00
  • Phase Shift Keying PSK (definition, waveform, Bandwidth, Multi level PSK, Modulation & Demod)
    00:00
  • Differential Phase Shift Keying DPSK (Definition, Waveform, DPSK transmitter & DPSK receiver)
    00:00
  • QPSK Quadrature Phase Shift Keying (Basics, Modulator, Waveforms, Demodulator & Applications)
    00:00
  • BPSK Binary Phase Shift Keying, BPSK Transmitter, Constellation Diagram of BPSK, BPSK Signals
    00:00
  • M Array Frequency Shift Keying (MFSK) or Marry Frequency Shift Keying
    00:00
  • QAM Quadrature Amplitude Modulation, QAM Transmitter, QAM Receiver, Constellation Diagram of QAM
    00:00
  • Comparison of QAM and PSK, Comparison of Quadrature Amplitude Modulation and Phase Shift Keying
    00:00
  • Sampling Theory basics, response and derivations
    00:00
  • Aliasing or Effect of Under Sampling
    00:00
  • Examples on Nyquist rate and Sampling Theory
    00:00
  • Instantaneous Sampling or Ideal Sampling or Impulse Sampling in Digital Communication
    00:00
  • Natural Sampling Basics, Working and waveforms
    00:00
  • Flat Top Sampling or PAM – Pulse Amplitude Modulation
    00:00
  • Performance comparison of sampling techniques
    00:00
  • PWM – Pulse Width Modulation basics, Circuit, working & Waveforms in Digital Communication
    07:03
  • PPM – Pulse Position Modulation basics, Circuit, working & Waveforms in Digital Communication
    00:00
  • Performance Comparison of PAM, PWM and PPM
    00:00
  • Basics of Quantization in Digital Communication
    00:00
  • Formulas and basic understanding of quantization
    00:00
  • Dynamic range of Quantization
    00:00
  • SNR Signal to Noise Ratio of Quantization
    00:00
  • Uniform quantization (Midtread and Midriser)
    00:00
  • Examples of Quantization and Calculation of Parameters based on Quantization
    00:00
  • Pulse Code Modulation PCM in Digital communication
    00:00
  • PCM Receiver or Pulse Code Modulation Receiver
    00:00
  • Quantization Noise and SQNR for Sinusoidal and Nonsinusoidal signal in Digital Communication
    00:00
  • PCM Examples, Pulse Code Modulation Examples
    00:00
  • PCM Examples, Pulse Code Modulation Examples
    00:00
  • PCM Examples, Pulse Code Modulation Examples
    00:00
  • Non-uniform Quantization in Digital Communication
    00:00
  • Companding basics, block Diagram & working in Digital Communication
    00:00
  • μ law companding in Non-uniform Quantization
    00:00
  • A law companding in Non-uniform Quantization
    00:00
  • Data rate of PCM in India and USA in Digital Communication
    00:00
  • Basics and Advantages of DPCM Differential Pulse Code Modulation in Digital Communication
    00:00
  • DPCM Encoder and DPCM Decoder or Differential Pulse Code Modulation Encoder & Decoder
    00:00
  • Example of DPCM Differential Pulse Code Modulation in Digital Communication
    00:00
  • Example Based on DPCM using Mid-riser Quantizer in Digital Communication
    00:00
  • SQNR of DPCM Differential Pulse Code Modulation
    00:00
  • Delta Modulation Basics, Block Diagram and Waveforms in Digital Communication
    00:00
  • Delta Modulation Receiver or DM Receiver in Digital Communication
    00:00
  • Problems associated with Delta Modulation in Digital Communication
    00:00
  • SQNR of Delta Modulation System or SNR of Delta Modulation System in Digital Communication
    00:00
  • Examples on Delta Modulation or Examples on DM
    00:00
  • Examples on Delta Modulation or Examples on DM in Digital Communication
    00:00
  • Adaptive Delta Modulation basics, working & Block Diagram in Digital Communication
    00:00
  • Time Division Multiplexing TDM, TDM/PAM
    00:00
  • Examples on Time Division Multiplexing TDM
    00:00
  • Examples on T1 System or PCM-TDM system
    00:00
  • Examples on Time Division Multiplexing TDM
    00:00
  • Line Coding and characteristics of Line Coding
    00:00
  • Pulse Shaping techniques (Unipolar, Polar & Bipolar)
    00:00
  • Basic Pulses (NRZ, RZ & Manchester)
    00:00
  • Line Coding Techniques
    00:00
  • PSD of NRZ Unipolar Line Coding Scheme
    00:00
  • PSD of NRZ Polar Line Coding Scheme in Digital Communication
    00:00
  • PSD of NRZ Bipolar Line Coding Scheme
    00:00
  • PSD of Manchester Polar Line Coding Scheme
    00:00
  • Comparison of Unipolar, Polar, Bipolar and Manchester Line Coding Scheme in Digital Communication
    00:00
  • Example on Pulse Shaping in Digital Communication
    00:00
  • Information Basics, Definition, Uncertainty & Properties in Digital Communication
    00:00
  • Examples on Information in Digital Communication
    00:00
  • Entropy basics, Definition & Properties
    00:00
  • Entropy source efficiency, redundancy & information rate
    00:00
  • Shannon Fano Encoding Algorithm, Procedure & Example, Information Theory & Error Coding
    00:00
  • Shannon Fano Encoding Example, Information Theory & Error Coding in Digital Communication
    00:00
  • Shannon Fano Encoding Example on Ambiguity, Information Theory & Error Coding in Digital Commun
    00:00
  • Huffman Coding Algorithm, Procedure & Example, Information Theory & Error Coding
    00:00
  • Huffman Coding Algorithm, procedure & Example on Quaternary Codes, Information Theory
    00:00
  • Block Codes for single parity check codes, Information Theory & Error Coding in Digital Communicatio
    00:00
  • Block Diagram of Digital Communication System with detailed explanation
    00:00
  • Block Codes basics and parameters, Information Theory & Error Coding in Digital Communication
    00:00
  • Block Codes for product Codes, Information Theory & Error Coding in Digital Communication
    00:00
  • Block Codes for Repetition Codes, Information Theory & Error Coding in Digital Communication
    00:00
  • Hamming Code Basics
    00:00
  • Hamming Code generation
    00:00
  • Hamming Code error detection and Hamming Code error correction
    00:00
  • Linear Block Code basics & Property with example
    00:00
  • Generator Matrix to generate code words in Linear Block Code with example
    00:00
  • Systematic Generator Matrix and Conversion of Non Systematic generator Matrix into Systematic Matrix
    00:00
  • Parity Check Matrix in Linear Block Code with Example in Digital Communication by Engineering Funda
    00:00
  • Error Syndromes in Linear Block Code & Error Correction in Linear Block Code in Digital Communicatio
    00:00
  • Error Detection & Error Correction Capability of Linear Block Code with Example in Digital Communica
    00:00
  • Complete Example of Linear Block Code
    00:00
  • Cyclic Code Basics & Properties of Cyclic Code
    00:00
  • Cyclic Code for Non Systematic Codeword with Example in Digital Communication
    00:00
  • Cyclic Code for Systematic Codeword with Example in Digital Communication
    00:00
  • Generator Matrix of Cyclic Code with Example
    00:00
  • Cyclic Encoder Designing with Example
    00:00
  • Convolutional Codes basics, designing & Parameters
    00:00
  • Convolutional Codes States and Code tree
    00:00
  • Code trellis and State Diagram of Convolutional Codes
    00:00
  • Viterbi Algorithm Basics, Process & Example with trellis diagram in digital communication
    00:00
  • 1. Lempel Zip Coding, Procedure of Lempel Ziv Coding, Example of Lempel Ziv Coding
    00:00
  • 2. Lempel Zip Coding, Procedure of Lempel Ziv Coding, Example of Lempel Ziv Coding
    00:00
  • Probability basics & Example in Random Variables
    00:00
  • Mean, Variance & Standard Deviation in Random Variable
    00:00
  • Example on Mean, Variance & Standard Deviation in Random Variable
    00:00
  • Cumulative Distribution Function CDF & Probability Density Function PDF in Random Variable
    00:00
  • Examples on CDF and PDF in Random Variable
    00:00
  • Examples on CDF and PDF in Random Variable
    00:00
  • Examples on CDF and PDF in Random Variable
    00:00
  • Channel Capacity by Shannon – Hartley and Proof of channel Capacity by Shannon – Hartley
    00:00
  • Example on Channel Capacity by Shannon – Hartley in Digital Communication
    00:00
  • Spread Spectrum basics, block diagram, working, need and significance
    00:00
  • Frequency Hopping Spread Spectrum FHSS (Block Diagram, Working, Performance, Hoping & Applications)
    00:00
  • Direct Sequence Spread Spectrum DSSS (Basics, Block Diagram, Working, Waveforms & Applications
    00:00

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