Decentralized network congestion control for DAG-based distributed ledger system

• URL: http://arxiv.org/abs/2609.09961v1
• Date: Wed, 09 Sep 2026 09:48:54 GMT
• Title: Decentralized network congestion control for DAG-based distributed ledger system
• Abstract summary: We propose a variable and behavior-based proof-of-work (PoW) model for a directed acyclic graph (DAG)-based distributed ledger technology (DLT) network.<n>We focus on the congestion caused by the spamming of transactions within the blockchain and DAG-based DLT network.<n>Our model provides equal opportunities for all stakeholders regardless of their computational resources.
• Score: 3.4389716074467516
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We propose a variable and behavior-based node-specific proof-of-work (PoW) model for a directed acyclic graph (DAG)-based distributed ledger technology (DLT) network to mitigate decentralized network congestion control. Network congestion control for centralized communication systems is an established field of study, with detailed and continuous research being done on the subject. However, attention to congestion control in decentralized networks is relatively recent and underexplored, especially with DLT, such as blockchain and DAG-based networks. For the DLT networks, the network congestion is caused by factors such as transaction spamming, an increase in the user base, and the launch of new tokens. We focus on the congestion caused by the spamming of transactions within the blockchain and DAG-based DLT network. Based on the network throughput of transactions per second and consensus procedure, the DAG-based DLT needs to control network spamming more than the blockchain network. The PoW model within the DLT consensus framework is a limited deterrent against spamming. Our model provides equal opportunities for all stakeholders regardless of their computational resources. It prevents and penalizes any node that attempts to spam or dominate the network with more than the prescribed number of transactions. Since the system nodes compete to issue transactions with finite network resources, we display the system behavior through a non-cooperative game. Further, we show that our model enforces prescribed behavior amongst the nodes through the proof of the existence of Nash equilibrium in the game.

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