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Partially observable model-based learning for ISAC resource allocation

Citation Author(s):
Petteri Pulkkinen, Visa Koivunen
Submitted by:
Petteri Pulkkinen
Last updated:
14 April 2024 - 7:39pm
Document Type:
Presentation Slides
Document Year:
Petteri Pulkkinen
Paper Code:

This paper considers resource allocation problems for integrated sensing and communications (ISAC) systems operating in dynamic shared spectrum scenarios. Specifically, the paper proposes a new Model-Based Online Learning (MBOL) method that accounts for partial observability caused by noisy observations. First, the approach converts the partially observable Markov decision process (POMDP) to the equivalent belief state Markov decision process (MDP). Then, the state prediction model is learned from the sensor observations. A loss correction approach is introduced to solve the model learning problem under partial observability. The proposed approach is evaluated in allocating subcarriers and their powers to communications and sensing tasks in multicarrier ISAC systems. The simulations demonstrate improved performance in partially observable settings.

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