Improving The Capacity Of Mqam Technique Using Adaptive Modulation

Dynamic link adaptation techniques or adaptive modulation technique, where the modulation signal transmission is adjusted dynamically in accordance with the changing channel conditions that ultimately helps in improving the capacity of a channel. The Symbol Error Rate (SER) curves and capacity performance of different modulation schemes are analyzed using adaptive modulation. Adaptive modulation is a useful technique to improve the capacity of a fading channel. SER performance of different modulation schemes of M-Level Quadrature Amplitude Modulation (MQAM) are analyzed using adaptive modulation technique. The paper introduces the implementation of adaptive modulation scheme using MQAM. Improvement in capacity of MQAM using adaptive modulation has been discussed.