QCQP quadratically constrained quadratic program A quadratically constrained quadratic program (QCQP) is an optimization problem
QBICM QuantizedBit Interleaved Coded Modulation Quantized Bit Interleaved Coded Modulation (QBICM) is a modulation scheme
QAM Quadrature-Amplitude Modulation Quadrature-Amplitude Modulation (QAM) is a digital modulation scheme widely