Low complexity detection based on selective message passing for SCMA systems
Sign Up to like & getrecommendations! Published in 2018 at "Electronics Letters"
DOI: 10.1049/el.2018.0125
Abstract: The sparse code multiple access (SCMA) systems rely on multiuser detection schemes to achieve high spectral efficiency and massive connectivity. The existing multiuser detection schemes employ a message passing algorithm (MPA) to achieve the goal… read more here.
Keywords: detection; complexity; based selective; message passing ... See more keywords
Enabling High Order SCMA Systems in Downlink Scenarios With a Serial Coding Scheme
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DOI: 10.1109/access.2018.2842233
Abstract: In the future fifth generation communication systems, sparse code multiple access (SCMA) shows strong competitiveness as a novel non-orthogonal multiple access (NOMA) technique. Attributing to multi-dimensional codebooks, the SCMA can obtain shaping gain and provide… read more here.
Keywords: downlink scenarios; order; scma; order scma ... See more keywords
Gaussian Approximation-Based Belief Propagation Receiver for Uplink SCMA Systems With Imperfect CSIR
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DOI: 10.1109/lcomm.2018.2874441
Abstract: For uplink sparse code multiple access (SCMA) systems, a channel estimation is required to support a multi-user detection in practice. Motivated by the conventional detection, called a Gaussian approximation-based belief propagation (GA-BP) with matched filtering,… read more here.
Keywords: based belief; belief propagation; gaussian approximation; receiver ... See more keywords