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Optimal Communication Cost

Definition

Optimal communication cost refers to the lowest possible expenditure of network resources, such as bandwidth and computational effort, required for nodes in a decentralized system to achieve consensus or exchange necessary information. Achieving this optimal state is crucial for the scalability and efficiency of blockchain protocols, especially as network size and transaction volume increase. Minimizing communication overhead directly reduces operational expenses and improves system performance. It is a key design objective for distributed ledgers.