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Spectrum sensing and non-orthogonal multiple access based massive grant-free random access scheme

A massive grant-free random access scheme based on spectrum sensing provided by cognitive radio (CR) and non-orthogonal multiple access (NOMA) was proposed for massive machine type communication scenarios. Firstly, a three-step grant-free random access protocol based on CR-NOMA was put up, which cou...

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Principais autores: ZHANG Jing, MA Lin, GAO Hongxu, LU Yin, WU Shuoyu, ZHU Hongbo
Formato: Artigo
Idioma:Chinês
Publicado em: Editorial Department of Journal on Communications 2025-03-01
coleção:Tongxin xuebao
Assuntos:
massive grant-free random access
spectrum sensing
non-orthogonal multiple access
access probability
Acesso em linha:http://www.joconline.com.cn/thesisDetails#10.11959/j.issn.1000-436x.2025052
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