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NoCorrelationZF.cpp

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 * A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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#include <OFDMAPHY/receiver/mimo/NoCorrelationZF.hpp>
#include <OFDMAPHY/receiver/Receiver.hpp>


using namespace ofdmaphy::receiver::mimo;

STATIC_FACTORY_REGISTER_WITH_CREATOR(NoCorrelationZF,
                                     ICalculationStrategy,
                                     "NoCorrelationZF",
                                     ICalculationStrategyCreator);

NoCorrelationZF::NoCorrelationZF(const wns::pyconfig::View& _config,
                                 Receiver* _rx,
                                 wns::logger::Logger* _logger):
    ICalculationStrategy(_config, _rx, _logger),
    logger(_logger),
    rx(_rx)
{

}

std::vector<wns::Ratio>
NoCorrelationZF::getPostProcessingSINRFactor(rise::TransmissionObjectPtr t)
{
    int n_SS = t->getNumberOfSpatialStreams();
    int n_RX = rx->getOFDMAStation()->getNumAntennas();

    if(n_SS > n_RX)
    {
        // More streams than receive antennas -> no usefull reception possible
        return std::vector<wns::Ratio>(n_SS, wns::Ratio::from_factor(1e-12));
    }

    MESSAGE_SINGLE(NORMAL, *logger, "postProcessingSINR with n_SS " << n_SS << " and n_Rx " << n_RX << "-> " << double(n_RX - n_SS + 1)/double(n_SS));

    return std::vector<wns::Ratio>(n_SS,
                                   wns::Ratio::from_factor(double(n_RX - n_SS + 1)/double(n_SS)));
}

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