InvCSINet uses an invertible neural network with learned quantization and bit-channel distortion modules for FDD massive MIMO CSI feedback, but the claimed information-preserving guarantee rests on flawed proofs and a non-transmitted auxiliary variable.
Downlink channel covariance matrix reconstruction for FDD massive MIMO systems with limited feedback,
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Information-Preserving CSI Feedback: Invertible Networks with Endogenous Quantization and Channel Error Mitigation
InvCSINet uses an invertible neural network with learned quantization and bit-channel distortion modules for FDD massive MIMO CSI feedback, but the claimed information-preserving guarantee rests on flawed proofs and a non-transmitted auxiliary variable.