Random access for massive Internet of things:current status, challenges and opportunities
In conventional communication systems, the random access (RA) is a necessary procedure for a user equipment (UE) to establish wireless connection to the network before actual data transmission.Focusing on the massive IoT with large number of nodes, the fundamental characteristics and limitations of...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2021-04-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021098/ |
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| _version_ | 1841539268320690176 |
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| author | Pingzhi FAN Li LI Huan CHEN Gaofeng CHENG Linjie YANG Xiaobo TANG |
| author_facet | Pingzhi FAN Li LI Huan CHEN Gaofeng CHENG Linjie YANG Xiaobo TANG |
| author_sort | Pingzhi FAN |
| collection | DOAJ |
| description | In conventional communication systems, the random access (RA) is a necessary procedure for a user equipment (UE) to establish wireless connection to the network before actual data transmission.Focusing on the massive IoT with large number of nodes, the fundamental characteristics and limitations of conventional grant-based RA were firstly discussed.Then, the grant-free RA, semi-grant-free RA and unsourced RA for massive IoT were addressed in details from multiple perspectives, including their system models, protocol frameworks, algorithm procedures, system performance, related pros and cons, as well as critical challenges and potential opportunities.Finally, some highlights on the related key techniques and common issues in random access for massive IoT were concluded. |
| format | Article |
| id | doaj-art-35e9f64825a24833a1856579075e27e9 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2021-04-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-35e9f64825a24833a1856579075e27e92025-01-14T07:21:56ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2021-04-014212159741265Random access for massive Internet of things:current status, challenges and opportunitiesPingzhi FANLi LIHuan CHENGaofeng CHENGLinjie YANGXiaobo TANGIn conventional communication systems, the random access (RA) is a necessary procedure for a user equipment (UE) to establish wireless connection to the network before actual data transmission.Focusing on the massive IoT with large number of nodes, the fundamental characteristics and limitations of conventional grant-based RA were firstly discussed.Then, the grant-free RA, semi-grant-free RA and unsourced RA for massive IoT were addressed in details from multiple perspectives, including their system models, protocol frameworks, algorithm procedures, system performance, related pros and cons, as well as critical challenges and potential opportunities.Finally, some highlights on the related key techniques and common issues in random access for massive IoT were concluded.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021098/massive Internet of thingsrandom accessgrant-freeunsourced random accessnon-orthogonal multiple access |
| spellingShingle | Pingzhi FAN Li LI Huan CHEN Gaofeng CHENG Linjie YANG Xiaobo TANG Random access for massive Internet of things:current status, challenges and opportunities Tongxin xuebao massive Internet of things random access grant-free unsourced random access non-orthogonal multiple access |
| title | Random access for massive Internet of things:current status, challenges and opportunities |
| title_full | Random access for massive Internet of things:current status, challenges and opportunities |
| title_fullStr | Random access for massive Internet of things:current status, challenges and opportunities |
| title_full_unstemmed | Random access for massive Internet of things:current status, challenges and opportunities |
| title_short | Random access for massive Internet of things:current status, challenges and opportunities |
| title_sort | random access for massive internet of things current status challenges and opportunities |
| topic | massive Internet of things random access grant-free unsourced random access non-orthogonal multiple access |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021098/ |
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