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Derivation of CRB and Refined SINR Expressions for OTFS-RSMA LEO ISAC Systems
Bruno Felipe Costa, Taufik Abr\~ao
https://arxiv.org/abs/2506.02771 https://

Derivation of CRB and Refined SINR Expressions for OTFS-RSMA LEO ISAC Systems
This document provides detailed step-by-step derivations for the Cramér-Rao Bounds (CRB) for sensing parameters and the refined Signal-to-Interference-plus-Noise Ratio (SINR) expressions under imperfect Channel State Information (CSI) and imperfect Successive Interference Cancellation (SIC) for the Orthogonal Time Frequency Space (OTFS) Rate-Splitting Multiple Access (RSMA) framework presented in our main work "An Integrated OTFS-RSMA Framework for LEO Satellite ISAC: Modeling, Metrics, and Po…