Research on Cognitive Radio Non-orthogonal Multiple Access System in 5G Communications Oriented to Ubiquitous Power Internet of Things
With the continuous advancement of the construction of the power Internet of Things, the power distribution network has seen exponential growth of data volume. As a result, the traditional smart power communication network based on cognitive radio is no longer capable of meeting the high demand for...
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| Format: | Article |
| Language: | zho |
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State Grid Energy Research Institute
2021-05-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202010099 |
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| author | Rui SHE Ningchi ZHANG Yanru WANG Dandan GUO Wenjie MA Hui LIU Jie ZHANG |
| author_facet | Rui SHE Ningchi ZHANG Yanru WANG Dandan GUO Wenjie MA Hui LIU Jie ZHANG |
| author_sort | Rui SHE |
| collection | DOAJ |
| description | With the continuous advancement of the construction of the power Internet of Things, the power distribution network has seen exponential growth of data volume. As a result, the traditional smart power communication network based on cognitive radio is no longer capable of meeting the high demand for spectrum resources by a large number of devices that are installed to collect power consumption data. This paper constructs a 5G network model for the power Internet of Things, which aims to use the non-orthogonal transmission characteristics of non-orthogonal multiple access (NOMA) technology to further improve the spectrum resource utilization of the limited power private network. To ensure the accuracy of spectrum detection, a multi-user cooperative sensing method is adopted. The closed expressions of spectrum access probability and throughput are derived; in order to further increase the accuracy of the classification results, an improved K-means algorithm is proposed. The alternate iterative algorithm is implemented to jointly optimize the detection time, node power and the number of user clusters such that the system throughput can be maximized eventually. The simulation results show that compared with the traditional orthogonal multiple access system, not only the spectrum utilization but also the accuracy of the sensing results are significantly improved. |
| format | Article |
| id | doaj-art-75e641b9b8c346d6aa3f40b77ca7fd92 |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2021-05-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-75e641b9b8c346d6aa3f40b77ca7fd922025-08-20T02:53:03ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492021-05-01545354510.11930/j.issn.1004-9649.202010099zgdl-54-5-sheruiResearch on Cognitive Radio Non-orthogonal Multiple Access System in 5G Communications Oriented to Ubiquitous Power Internet of ThingsRui SHE0Ningchi ZHANG1Yanru WANG2Dandan GUO3Wenjie MA4Hui LIU5Jie ZHANG6Communication Technology Center, State Grid Information & Telecommunication Group Beijing Zhongdian Feihua Communications Co., Ltd., Beijing 100071, ChinaCommunication Technology Center, State Grid Information & Telecommunication Group Beijing Zhongdian Feihua Communications Co., Ltd., Beijing 100071, ChinaCommunication Technology Center, State Grid Information & Telecommunication Group Beijing Zhongdian Feihua Communications Co., Ltd., Beijing 100071, ChinaCommunication Technology Center, State Grid Information & Telecommunication Group Beijing Zhongdian Feihua Communications Co., Ltd., Beijing 100071, ChinaCommunication Technology Center, State Grid Information & Telecommunication Group Beijing Zhongdian Feihua Communications Co., Ltd., Beijing 100071, ChinaCommunication Technology Center, State Grid Information & Telecommunication Group Beijing Zhongdian Feihua Communications Co., Ltd., Beijing 100071, ChinaCommunication Technology Center, State Grid Information & Telecommunication Group Beijing Zhongdian Feihua Communications Co., Ltd., Beijing 100071, ChinaWith the continuous advancement of the construction of the power Internet of Things, the power distribution network has seen exponential growth of data volume. As a result, the traditional smart power communication network based on cognitive radio is no longer capable of meeting the high demand for spectrum resources by a large number of devices that are installed to collect power consumption data. This paper constructs a 5G network model for the power Internet of Things, which aims to use the non-orthogonal transmission characteristics of non-orthogonal multiple access (NOMA) technology to further improve the spectrum resource utilization of the limited power private network. To ensure the accuracy of spectrum detection, a multi-user cooperative sensing method is adopted. The closed expressions of spectrum access probability and throughput are derived; in order to further increase the accuracy of the classification results, an improved K-means algorithm is proposed. The alternate iterative algorithm is implemented to jointly optimize the detection time, node power and the number of user clusters such that the system throughput can be maximized eventually. The simulation results show that compared with the traditional orthogonal multiple access system, not only the spectrum utilization but also the accuracy of the sensing results are significantly improved.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202010099power internet of things5g communicationcognitive radionon-orthogonal multiple accesssmart grid |
| spellingShingle | Rui SHE Ningchi ZHANG Yanru WANG Dandan GUO Wenjie MA Hui LIU Jie ZHANG Research on Cognitive Radio Non-orthogonal Multiple Access System in 5G Communications Oriented to Ubiquitous Power Internet of Things Zhongguo dianli power internet of things 5g communication cognitive radio non-orthogonal multiple access smart grid |
| title | Research on Cognitive Radio Non-orthogonal Multiple Access System in 5G Communications Oriented to Ubiquitous Power Internet of Things |
| title_full | Research on Cognitive Radio Non-orthogonal Multiple Access System in 5G Communications Oriented to Ubiquitous Power Internet of Things |
| title_fullStr | Research on Cognitive Radio Non-orthogonal Multiple Access System in 5G Communications Oriented to Ubiquitous Power Internet of Things |
| title_full_unstemmed | Research on Cognitive Radio Non-orthogonal Multiple Access System in 5G Communications Oriented to Ubiquitous Power Internet of Things |
| title_short | Research on Cognitive Radio Non-orthogonal Multiple Access System in 5G Communications Oriented to Ubiquitous Power Internet of Things |
| title_sort | research on cognitive radio non orthogonal multiple access system in 5g communications oriented to ubiquitous power internet of things |
| topic | power internet of things 5g communication cognitive radio non-orthogonal multiple access smart grid |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202010099 |
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