Reviewing in-tree flowgraph constellation_soft_decoder.grc and all of the modulation pairs work correctly with exception of 16-QAM. The flowgraph allows BPSK, QPSK and 16-QAM modulations to be ...

The six-polarization shift keying quadrature (6PolSK-QPSK) has been proved to be an alternative to four-dimensional (4D) modulation scheme. A variety of transmission compensation schemes have been ...

Upon seeing new errors, GPT-4 fixes the code and runs correctly. The original Python file is then updated with the changes added by GPT-4.

Later on they have implemented a QPSK modulation technique using reversible logic and the QPSK modulator unit will be modelled using HDL code and simulation will be done by ModelSim 6.0 simulator ...

In QPSK scheme the authors can transmit one of the 4 possible signals during each interval of signaling. WCDMA systems are based on higher modulations which provide transmission at higher data rates.

softBits = nrSoftModuDemapper(symbsIn,moduType,N0,method) demodulates the complex symbols symbsIn using soft decision. The modulation scheme, moduType must be one of 'BPSK', 'QPSK', '16QAM', '64QAM', ...