Communication system's performance is sensitive to bandwidth, power, cost etc. There have
been various solutions to improve the performance, out of them, one of the fundamental …

The square quadrature amplitude modulation (QAM) has been widely used for decades.
Though it is not optimum in the sense of power efficiency, simple detection makes it in use …

We study a parametric quadrature amplitude modulation (QAM) family, called θ-QAM, which
includes other known constellations, such as square QAM (SQAM) and triangular QAM …

Spectrally efficient transmission on the physical layer is a crucial attribute of state-of-the-art
transmission systems. The latest broadcast and terrestrial point-to-point systems such as …

Single-and Multi-carrier Quadrature Amplitude Modulation Principles and Applications for
Personal Communications, WLANs and Broadcasting L. Hanzo Department of Electronics …

Quadrature Amplitude Modulation (QAM) schemes are attractive in terms of bandwidth
efficiency and offer a number of subchannels with different integrities via both Gaussian and …

With spectral congestion increasing, and plans announced to dramatically increase the
number of mobile telephone users over the coming decade, many approaches are being …

This letter studies the symbol error probability (SEP) of quadrature-amplitude modulation
(QAM) signals constructed from the hexagonal lattice, known as hexagonal QAM or …

In the beginning of 21st century there has been a dramatic shift in the market dynamics of
telecommunication services. The transmission from base station to mobile or downlink …

Quadrature amplitude modulation (QAM) is an attractive technique to achieve high rate
transmission without increasing the bandwidth. A great deal of attention has been devoted to …