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- W4287200465 abstract "In this paper, we propose a turbo receiver for joint activity detection and data decoding in grant-free massive random access, which iterates between a detector and a belief propagation (BP)-based channel decoder. Specifically, responsible for user activity detection, channel estimation, and soft data symbol detection, the detector is developed based on a bilinear inference problem that exploits the common sparsity pattern in the received pilot and data signals. The bilinear generalized approximate message passing (BiG-AMP) algorithm is adopted to solve the problem using probabilities of the transmitted data symbols estimated by the channel decoder as prior knowledge. In addition, extrinsic information is derived from the detector to improve the channel decoding accuracy of the decoder. Simulation results show significant improvements achieved by the proposed turbo receiver compared with conventional designs." @default.
- W4287200465 created "2022-07-25" @default.
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- W4287200465 date "2021-04-26" @default.
- W4287200465 modified "2023-09-24" @default.
- W4287200465 title "Joint Activity Detection and Data Decoding in Massive Random Access via a Turbo Receiver" @default.
- W4287200465 hasPublicationYear "2021" @default.
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