{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,20]],"date-time":"2025-11-20T12:46:51Z","timestamp":1763642811517,"version":"build-2065373602"},"reference-count":26,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2020,2,7]],"date-time":"2020-02-07T00:00:00Z","timestamp":1581033600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61701020"],"award-info":[{"award-number":["61701020"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The BeiDou navigation satellite system (BDS) developed by China can provide users with high precision, as well as all-weather and real-time positioning and navigation. It can be widely used in many applications. However, new challenges emerge with the development of 5G communication system and Internet of Things (IoT) technologies. The BDS needs to be suitable for the large-scaled terminal scenario and provides higher positioning precision. In this paper, a BeiDou differential positioning method based on IoT and edge computing is proposed. The computational pressure on the data center is offloaded to the edge nodes when the massive positioning requests of IoT terminals need to be processed. To ensure the load balancing of the edge nodes, the resource allocation of the terminal positioning requests is performed with the improved genetic algorithm, thereby reducing the service delay of the entire edge network. Moreover, the optimized unscented Kalman filter based on the edge node (EUKF) algorithm is used to improve the positioning precision of IoT terminals. The results demonstrate that the proposed positioning method has better positioning performance which can provide the real-time positioning service for the large-scale IoT terminals.<\/jats:p>","DOI":"10.3390\/s20030889","type":"journal-article","created":{"date-parts":[[2020,2,7]],"date-time":"2020-02-07T11:50:28Z","timestamp":1581076228000},"page":"889","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["BeiDou Satellite Positioning Method Based on IoT and Edge Computing"],"prefix":"10.3390","volume":"20","author":[{"given":"Lina","family":"Wang","sequence":"first","affiliation":[{"name":"School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China"},{"name":"Shunde Graduate School, University of Science and Technology Beijing, Foshan 528300, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rui","family":"Qiu","sequence":"additional","affiliation":[{"name":"School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,2,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Li, J., Zhang, J., Zhang, B., and Shen, B. (2015, January 20\u201323). Operation and development of BeiDou Navigation Satellite System. Proceedings of the 2015 International Association of Institutes of Navigation World Congress (IAIN), Prague, Czech Republic.","DOI":"10.1109\/IAIN.2015.7352218"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Han, C. (2014, January 16\u201323). The BeiDou navigation satellite system. Proceedings of the 2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), Beijing, China.","DOI":"10.1109\/URSIGASS.2014.6929050"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"751","DOI":"10.1016\/j.asr.2016.12.007","article-title":"Preface: BeiDou Navigation Satellite System (BDS)\/GNSS+: Recent progress and new applications","volume":"59","author":"Jin","year":"2017","journal-title":"Adv. Space Res."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"95","DOI":"10.1016\/j.phycom.2015.10.007","article-title":"SDN\/NFV-enabled satellite communications networks: Opportunities, scenarios and challenges","volume":"18","author":"Koumaras","year":"2016","journal-title":"Phys. Commun."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Hosseini, N., Jamal, H., Haque, J., Magesacher, T., and Matolak, D.W. (2019, January 2\u20139). UAV Command and Control, Navigation and Surveillance: A Review of Potential 5G and Satellite Systems. Proceedings of the 2019 IEEE Aerospace Conference, Big Sky, MT, USA.","DOI":"10.1109\/AERO.2019.8741719"},{"key":"ref_6","first-page":"60","article-title":"Edge server placement in mobile edge computing","volume":"127","author":"Wang","year":"2019","journal-title":"J. Parallel Distrib. Comput."},{"key":"ref_7","unstructured":"Choi, J.K., Park, S.H., Cho, D.J., and Seo, K.Y. (2008, January 14\u201317). Correction error generation algorithm for differential positioning performance analysis of navigation equipment. Proceedings of the 2008 International Conference on Control, Automation and Systems, Seoul, Korea."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Kong, H., Chen, W., Fu, S., Zheng, H., Du, L., and Mao, Y. (2019, January 14\u201317). OBU Design and Test Analysis with Centimeter-Level Positioning for LTE-V2X. Proceedings of the 2019 5th International Conference on Transportation Information and Safety (ICTIS), Liverpool, UK.","DOI":"10.1109\/ICTIS.2019.8883715"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"62","DOI":"10.1016\/j.future.2018.07.049","article-title":"Enabling technologies for fog computing in healthcare IoT systems","volume":"90","author":"Mutlag","year":"2019","journal-title":"Future Gener. Comput. Syst."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"587","DOI":"10.1109\/JSAC.2018.2815360","article-title":"Task Offloading for Mobile Edge Computing in Software Defined Ultra-Dense Network","volume":"36","author":"Chen","year":"2018","journal-title":"IEEE J. Sel. Areas Commun."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"2146","DOI":"10.1109\/JIOT.2018.2826006","article-title":"Application Aware Workload Allocation for Edge Computing-Based IoT","volume":"5","author":"Fan","year":"2018","journal-title":"IEEE Internet Things J."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"226","DOI":"10.1016\/j.jpdc.2018.08.009","article-title":"Edge computing framework for enabling situation awareness in IoT based smart city","volume":"122","author":"Hossain","year":"2018","journal-title":"J. Parallel Distrib. Comput."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Shao, M., and Sui, X. (2015, January 23\u201325). Study on Differential GPS Positioning Methods. Proceedings of the 2015 International Conference on Computer Science and Mechanical Automation (CSMA), Hangzhou, China.","DOI":"10.1109\/CSMA.2015.51"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"590","DOI":"10.1016\/j.proeng.2016.01.296","article-title":"A Differential Dynamic Positioning Algorithm Based on GPS\/Beidou","volume":"137","author":"Kang","year":"2016","journal-title":"Procedia Eng."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Acharya, R. (2014). Understanding Satellite Navigation, Academic Press. Chapter 8.","DOI":"10.1016\/B978-0-12-799949-4.00002-6"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"289","DOI":"10.1016\/j.sysarc.2019.02.009","article-title":"All One Needs to Know about Fog Computing and Related Edge Computing Paradigms: A Complete Survey","volume":"98","author":"Yousefpour","year":"2019","journal-title":"J. Syst. Archit."},{"key":"ref_17","unstructured":"Wang, L., Teng, H., and Yu, G. (2014, January 15\u201316). Sensors Access Scheme Design Based on Internet of Things Gateways. Proceedings of the 2014 Fifth International Conference on Intelligent Systems Design and Engineering Applications, Hunan, China."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"8418","DOI":"10.1109\/ACCESS.2016.2631546","article-title":"A Fog Based Middleware for Automated Compliance with OECD Privacy Principles in Internet of Healthcare Things","volume":"4","author":"Elmisery","year":"2016","journal-title":"IEEE Access"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"106","DOI":"10.1016\/j.future.2017.05.034","article-title":"An edge-based platform for dynamic Smart City applications","volume":"76","author":"Cicirelli","year":"2017","journal-title":"Future Gener. Comput. Syst."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"563","DOI":"10.1016\/j.future.2018.08.040","article-title":"IoT big data analytics for smart homes with fog and cloud computing","volume":"91","author":"Yassine","year":"2019","journal-title":"Future Gener. Comput. Syst."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Dai, Y., Lou, Y., and Lu, X. (2015, January 26\u201327). A Task Scheduling Algorithm Based on Genetic Algorithm and Ant Colony Optimization Algorithm with Multi-QoS Constraints in Cloud Computing. Proceedings of the 2015 7th International Conference on Intelligent Human-Machine Systems and Cybernetics, Hangzhou, China.","DOI":"10.1109\/IHMSC.2015.186"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"64","DOI":"10.1016\/j.jnca.2018.12.010","article-title":"Meta heuristic-based task deployment mechanism for load balancing in IaaS cloud","volume":"128","author":"Adhikari","year":"2019","journal-title":"J. Net. Comput. Appl."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"282","DOI":"10.1016\/j.geog.2019.04.006","article-title":"The usability of GNSS mass-market receivers for cadastral surveys considering RTK and NRTK techniques","volume":"10","author":"Dabove","year":"2019","journal-title":"Geod. Geodyn."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"726","DOI":"10.1016\/j.asr.2014.04.020","article-title":"Minimum of PDOP and its applications in inter-satellite links (ISL) establishment of Walker-\u03b4 constellation","volume":"54","author":"Han","year":"2014","journal-title":"Adv. Space Res."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1233","DOI":"10.1016\/j.proeps.2009.09.189","article-title":"Test and analysis on the errors of GPS observation in mining field","volume":"1","author":"Ren","year":"2009","journal-title":"Procedia Earth Planet. Sci."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1386","DOI":"10.1016\/j.compchemeng.2009.01.012","article-title":"Constrained nonlinear state estimation based on the UKF approach","volume":"33","author":"Kolas","year":"2009","journal-title":"Comput. Chem. Eng."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/3\/889\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T08:55:44Z","timestamp":1760172944000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/3\/889"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,2,7]]},"references-count":26,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2020,2]]}},"alternative-id":["s20030889"],"URL":"https:\/\/doi.org\/10.3390\/s20030889","relation":{},"ISSN":["1424-8220"],"issn-type":[{"type":"electronic","value":"1424-8220"}],"subject":[],"published":{"date-parts":[[2020,2,7]]}}}