A Jointly Optimized Variable <i>M</i>-QAM and Power Allocation Scheme for Image Transmission

<table>Improvement in the PSNR of power optimized 16-QAM when compared with conventional 16-QAM.</table>

Journal of Computer Networks and Communications

Figure 4: A Jointly Optimized Variable <i>M</i>-QAM and Power Allocation Scheme for Image Transmission 