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GP-EC-1ECPN31ElectronicsOpen for request

MATLAB digital communication link simulator

A MATLAB simulation for comparing digital modulation, channel noise, coding, synchronisation assumptions, and receiver performance through reproducible bit-error experiments.

  • MATLAB R2026a
  • Communications Toolbox

Software compatibility

MATLAB R2026a only

Requires the buyer's own licensed MATLAB R2026a and Communications Toolbox installation. The delivered models are not GNU Octave compatible.

Project definition

Problem statement

Communication performance depends on modulation, energy normalisation, pulse shaping, noise definition, synchronisation, coding, and sample count. Incorrect scaling can produce convincing but invalid BER curves.

Project objectives

  • Simulate selected BPSK, QPSK, and QAM baseband links.
  • Apply AWGN and one selected fading channel under explicit Eb by N0 definitions.
  • Add pulse shaping, matched filtering, and selected synchronisation impairments.
  • Compare uncoded and selected coded transmission.
  • Verify Monte Carlo BER against analytical references with confidence intervals.

System design

System modules

01

Transmitter

Generates bits, coding, symbols, pulse-shaped samples, and normalised energy.

02

Channel

Applies AWGN, selected fading, timing, phase, and frequency impairments.

03

Receiver

Performs matched filtering, compensation, detection, demapping, and decoding.

04

Experiment runner

Controls SNR points, error targets, maximum bits, seeds, and repeated trials.

05

Analysis

Produces BER, confidence, constellation, spectrum, and impairment comparisons.

Methodology

System workflow

  1. 01
    Verify baseline

    An uncoded BPSK AWGN case is checked against theory.

  2. 02
    Add modulation

    QPSK and QAM cases use consistent energy and noise definitions.

  3. 03
    Add impairments

    Fading or synchronisation error is applied under controlled parameters.

  4. 04
    Compare coding

    One channel code is evaluated at the same information-bit energy.

  5. 05
    Interpret

    BER gain, bandwidth, complexity, and uncertainty are compared.

Demonstration scenario

BPSK, QPSK, and 16-QAM links run over AWGN with fixed error-count stopping rules. Analytical and simulated BER are compared, then a fading and phase-error case shows constellation distortion and receiver-performance loss.

Engineering

Technical architecture

Environment
MATLAB R2026a scripts and functions with Communications Toolbox objects where documented.
Simulation
Vectorised Monte Carlo runs with deterministic seeds, stopping rules, and energy normalisation tests.
Verification
Analytical AWGN curves, noiseless recovery, power checks, and regression experiments.
Results
Saved MATLAB tables, figures, configurations, and scripts that regenerate every plot.

Testing

Evaluation

Evaluation measures

  • Noiseless bit recovery
  • BER agreement with analytical BPSK and QPSK references
  • Confidence-interval coverage and Monte Carlo convergence
  • Effect of fading, phase, frequency, and timing impairments
  • Coding gain at selected error rates
  • Runtime across SNR, modulation, and bit counts

System boundaries

  • Requires MATLAB R2026a and Communications Toolbox licences.
  • No GNU Octave or Python version is included.
  • The model is baseband and uses documented channel and synchronisation assumptions.
  • It does not transmit over radio hardware or private spectrum.

Included

  1. 01MATLAB link-simulation source files
  2. 02Modulation, channel, receiver, and coding modules
  3. 03BER, constellation, spectrum, and confidence plots
  4. 04Prepared experiment scripts, reference curves, and results
  5. 05Complete source code in a private GitHub repository
  6. 06Complete project documentation with synopsis, abstract, methodology, communication-system diagrams, equations, results, screenshots, and conclusion
  7. 07Setup and usage guide

Project record

No buyer information is collected on this page.

Permanent project ID
GP-EC-1ECPN31
Catalogued
22 Aug 2026
Completed
Pending
Verified
Pending
Demonstration
Added when ready

Handover

After purchase

  1. 01
    Payment is confirmed

    The project is marked unavailable and cannot be purchased again.

  2. 02
    Repository access is granted

    The buyer's submitted GitHub account receives access to the private repository.

  3. 03
    The purchase record is delivered

    The certification sheet is prepared from the reviewed buyer details and sent privately by email.