![]() Rectangular (symmetric or square) constellations are the preferred choice of implementation due to its simplicity in implementing modulation and demodulation. There exist other constellation shapes (like circular, triangular constellations) that are more efficient (in terms of energy required to achieve same the error probability) than the standard rectangular constellation. ![]() The given simulation code is very generic, and it plots both simulated and theoretical symbol error rates for all M-QAM modulation techniques. A generic complex baseband simulation technique, to simulate all M-ary QAM modulation techniques is given here.
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