function [rx,pktOffset,gain] = rxFrontEnd(rx,pktOffset,ind,cfgRx)

    sr = wlanSampleRate(cfgRx); % Sample rate

    % Coarse frequency offset estimation and correction using L-STF
    rxLSTF = rx(pktOffset+(ind.LSTF(1):ind.LSTF(2)), :);
    coarseFreqOffset = wlanCoarseCFOEstimate(rxLSTF,cfgRx.ChannelBandwidth);
    rx = helperFrequencyOffset(rx,sr,-coarseFreqOffset);

    % Symbol timing synchronization
    searchBufferLLTF = rx(pktOffset+(ind.LSTF(1):ind.LSIG(2)),:);
    pktOffset = pktOffset+wlanSymbolTimingEstimate(searchBufferLLTF,cfgRx.ChannelBandwidth);

    % Fine frequency offset estimation and correction using L-STF
    rxLLTF = rx(pktOffset+(ind.LLTF(1):ind.LLTF(2)),:);
    fineFreqOffset = wlanFineCFOEstimate(rxLLTF,cfgRx.ChannelBandwidth);
    rx = helperFrequencyOffset(rx,sr,-fineFreqOffset);

    % Timing synchronization complete: packet detected
    fprintf('Packet detected at index %d\n',pktOffset + 1);

    % Display estimated carrier frequency offset
    cfoCorrection = coarseFreqOffset + fineFreqOffset; % Total CFO
    fprintf('Estimated CFO: %5.1f Hz\n\n',cfoCorrection);

    % Scale the waveform based on L-STF power (AGC)
    gain = 1./(sqrt(mean(rxLSTF.*conj(rxLSTF)))); 
    rx = rx.*gain;
end