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- W3048849215 abstract "In massive machine-type communications (mMTC) scenarios, grant-free non-orthogonal multiple access becomes crucial due to the small transmission latency, limited signaling overhead and the ability to support massive connectivity. In a multi-user detection (MUD) problem, the base station (BS) is unaware of the active users and needs to detect active devices. With sporadic devices transmitting signals at any moment, the MUD problem can be formulated as a multiple measurement vector (MMV) sparse recovery problem. Through the Khatri–Rao product, we prove that the MMV problem is transformed into a single measurement vector (SMV) problem. Based on the basis pursuit de-noising approximate message passing (BPDN-AMP) algorithm, a novel learning AMP network (LAMPnet) algorithm is proposed, which is designed to reduce the false alarm probability when the required detection probability is high. Simulation results show that when the required detection probablity is high, the AMP algorithm based on LAMPnet noticeably outperforms the traditional algorithms with acceptable computational complexity." @default.
- W3048849215 created "2020-08-18" @default.
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- W3048849215 date "2020-08-11" @default.
- W3048849215 modified "2023-09-27" @default.
- W3048849215 title "Neural Network Based AMP Method for Multi-User Detection in Massive Machine-Type Communication" @default.
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- W3048849215 doi "https://doi.org/10.3390/electronics9081286" @default.
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