In Digital modulation basics, part 1 we examined the concept of quadrature modulation and signal generation. We showed a common block diagram for generating a quadrature signal (Figure 1). There is a ...

QAM Modulator With the advent of HD bandwidth has become a problem for all content providers, but it helps if you understand how it is managed.

Quadrature Amplification Modulation (QAM) refers to types of digital to analog translation methods used to transmit data.

This leads to an increased overhead in the system as compared with a fixed modulation system. In this paper, we introduce adaptive modulation systems by presenting some of the simpler adaptive ...

This leads to an increased overhead in the system as compared with a fixed modulation system. In this paper, we introduce adaptive modulation systems by presenting some of the simpler adaptive ...

Overcoming Challenges in Implementation While the benefits of 1024 QAM are substantial, implementing this advanced modulation technology comes with its own set of challenges.

In one word, this paper shows a new way to classify high-order M-QAM modulation schemes in noisy channel environments by using a logarithmic classifier. Its contributions include feature extraction ...

Surprisingly, the availability of the 256 QAM modulation scheme in the macro network was on par with the availability of 64 QAM in an HSPA+ network, based on a comparison of these most recent ...