                         <p>3-threshold decision<br>Symbol mapping<br>Error generation</p>
                        </div>
                        <div class="flow-stage">
                            <div class="stage-icon"><i class="fas fa-brain"></i></div>
                            <h4>LMS Engine</h4>
                            <p>Adaptive learning<br>Coefficient update<br>Convergence control</p>
                        </div>
                    </div>
                </div>
                
          