Design principle DP8: Fee-free instant payments
Provide the system with a module to forgo transaction costs for the execution of instant payments in order to regulate the duration of the connection.
Source paper
This design principle is proposed by An Architecture Using Payment Channel Networks for Blockchain-based Wi-Fi Sharing (Christian Janiesch, Marcus Fischer, Florian Imgrund, Adrian Hofmann, Axel Winkelmann, 2023).