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Gray mapped 16-QAM Constellation

Gray mapped 16-QAM Constellation

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Figure 1. Typical transmitter block diagram
Figure 2. 8-PSK constellation
Figure 5. Decomposition of rotated 16-QAM constellation into four...
Figure 6. Block diagram of iterative receiver applying turbo demodulation
+6 Figure 9. Gray mapped 16-QAM Constellation
A literature survey on algorithms and hardware architectures of Max-Log-MAP demapping
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  • Aug 2021
Emergent wireless communication standards, which are employed in different transmission environments, support various modulation schemes. High-order constellations are targeted to achieve high bandwidth efficiency. However, the complexity of the symbol-by-symbol Maximum A Posteriori (MAP) algorithm increases dramatically for these high-order modula...
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