Random access scheme for different MTC scenario requirement
For the different random access requirements of the mixed scenarios of ultra-reliable low latency (URLLC) and massive machine type communications (mMTC) in MTC,a random access scheme based on devices grouping was proposed.The proposed scheme divided the MTC devices into several groups based on the t...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2020-11-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020222/ |
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| _version_ | 1841539306190012416 |
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| author | Zhefu WU Xinyuan YANG Wenchao ZHAI Huimei HAN |
| author_facet | Zhefu WU Xinyuan YANG Wenchao ZHAI Huimei HAN |
| author_sort | Zhefu WU |
| collection | DOAJ |
| description | For the different random access requirements of the mixed scenarios of ultra-reliable low latency (URLLC) and massive machine type communications (mMTC) in MTC,a random access scheme based on devices grouping was proposed.The proposed scheme divided the MTC devices into several groups based on the timing advance (TA) information:for the URLLC scenario,preamble resources were reserved for core devices in each group,and the URLLC devices accessed the network via the contention-free mechanism,to satisfy the ultra-reliable low latency access requirement; for the mMTC scenario,the base station utilized the different TA information in different group to identify devices selecting the same preamble,and performed successive interference cancellation (SIC) algorithm to detect the data information,to satisfy the massive access requirement.Simulation results demonstrate that the proposed scheme can significantly increase the number of the successful devices. |
| format | Article |
| id | doaj-art-bbcdfe487d8e469fb71213ade8b1d374 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2020-11-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-bbcdfe487d8e469fb71213ade8b1d3742025-01-14T07:21:12ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2020-11-014117618459738807Random access scheme for different MTC scenario requirementZhefu WUXinyuan YANGWenchao ZHAIHuimei HANFor the different random access requirements of the mixed scenarios of ultra-reliable low latency (URLLC) and massive machine type communications (mMTC) in MTC,a random access scheme based on devices grouping was proposed.The proposed scheme divided the MTC devices into several groups based on the timing advance (TA) information:for the URLLC scenario,preamble resources were reserved for core devices in each group,and the URLLC devices accessed the network via the contention-free mechanism,to satisfy the ultra-reliable low latency access requirement; for the mMTC scenario,the base station utilized the different TA information in different group to identify devices selecting the same preamble,and performed successive interference cancellation (SIC) algorithm to detect the data information,to satisfy the massive access requirement.Simulation results demonstrate that the proposed scheme can significantly increase the number of the successful devices.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020222/MTCdevice groupingSICTAmassive access |
| spellingShingle | Zhefu WU Xinyuan YANG Wenchao ZHAI Huimei HAN Random access scheme for different MTC scenario requirement Tongxin xuebao MTC device grouping SIC TA massive access |
| title | Random access scheme for different MTC scenario requirement |
| title_full | Random access scheme for different MTC scenario requirement |
| title_fullStr | Random access scheme for different MTC scenario requirement |
| title_full_unstemmed | Random access scheme for different MTC scenario requirement |
| title_short | Random access scheme for different MTC scenario requirement |
| title_sort | random access scheme for different mtc scenario requirement |
| topic | MTC device grouping SIC TA massive access |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020222/ |
| work_keys_str_mv | AT zhefuwu randomaccessschemefordifferentmtcscenariorequirement AT xinyuanyang randomaccessschemefordifferentmtcscenariorequirement AT wenchaozhai randomaccessschemefordifferentmtcscenariorequirement AT huimeihan randomaccessschemefordifferentmtcscenariorequirement |