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Whittle-Index Approximation for Restless-Bandit Dynamic Spectrum Access

A low-complexity policy for dynamic spectrum access that models channel allocation as a restless multi-armed bandit and approximates the intractable Whittle index with a closed-form channel index function, computed by iterative online updates over the infinite belief-state space induced by partial channel-quality-indicator observations, to rank shared channels while limiting interference to a parent network.

Marvin Text

2501.00236

Restless multi-armed bandits (RMAB) are used to model dynamic spectrum access, in which a wireless sub-network sequentially assigns channels it shares with a parent network to its users while limitin…