$\mathcal {O}(M\log _{2} M)$ to

$\mathcal {O}(M)$

, where

$M=2^{\text {SF}}$

and SF represents the spreading factor, thus matching the complexity of hard decision. Importantly, this complexity reduction does not lead to any substantial performance degradation when compared to the Max-Log-MAP demapper. As a result, soft decoding can be employed in low-complexity LoRa systems to effectively enhance receiver sensitivity.">

Sorting-Based Soft-Demapping Algorithm for LoRa Systems (original) (raw)

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