Energy-Efficiency for IoT System With Cache-Enabled Fixed-Wing UAV Relay
This paper studies the energy efficiency (EE) maximization problem of fixed-wing Unmanned aerial vehicles (UAVs) enabled Internet of Things (IoT) system, where an UAV is employed as an aerial relay with enough cache capacity to amplify and forward (AF) received signals between narrow band (NB)-IoT d...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9125909/ |
| _version_ | 1818929846201352192 |
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| author | Kang Song Jifa Zhang Zhengxia Ji Jing Jiang Chunguo Li |
| author_facet | Kang Song Jifa Zhang Zhengxia Ji Jing Jiang Chunguo Li |
| author_sort | Kang Song |
| collection | DOAJ |
| description | This paper studies the energy efficiency (EE) maximization problem of fixed-wing Unmanned aerial vehicles (UAVs) enabled Internet of Things (IoT) system, where an UAV is employed as an aerial relay with enough cache capacity to amplify and forward (AF) received signals between narrow band (NB)-IoT device and eNodeB. This paper optimizes the unconstrained trajectory of the UAV to maximize the EE of UAV-enabled IoT system to achieve the green communication. Due to the objective function is a fraction and is non-convex, it's hard to solve the optimization problem. Therefore, this paper alternately optimizes trajectory in source subspace and destination subspace with the other fixed and comes up with an algorithm based on successive convex approximation (SCA) method and Dinkelbach method to obtain a local optimal solution. Numerical results show that the proposed UAV trajectory design method can obtain much bigger EE than the running track (RT) trajectory and circular trajectory. Besides, the proposed cache-enabled AF strategy can obtain much bigger EE than non cache-enabled AF strategy. |
| first_indexed | 2024-12-20T03:51:17Z |
| format | Article |
| id | doaj.art-30d066c5e2c9484f9eb28fa20d687762 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-20T03:51:17Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-30d066c5e2c9484f9eb28fa20d6877622022-12-21T19:54:28ZengIEEEIEEE Access2169-35362020-01-01811750311751210.1109/ACCESS.2020.30048439125909Energy-Efficiency for IoT System With Cache-Enabled Fixed-Wing UAV RelayKang Song0https://orcid.org/0000-0002-1557-3966Jifa Zhang1Zhengxia Ji2Jing Jiang3https://orcid.org/0000-0003-3242-912XChunguo Li4https://orcid.org/0000-0001-9217-4523College of Electronic and Information Engineering, Qingdao University, Qingdao, ChinaCollege of Electronic and Information Engineering, Qingdao University, Qingdao, ChinaCollege of Electronic and Information Engineering, Qingdao University, Qingdao, ChinaShaanxi Key Laboratory of Information Communication Network and Security, Xi’an University of Posts and Telecommunications, Xi’an, ChinaSchool of Information Science and Engineering, Southeast University, Nanjing, ChinaThis paper studies the energy efficiency (EE) maximization problem of fixed-wing Unmanned aerial vehicles (UAVs) enabled Internet of Things (IoT) system, where an UAV is employed as an aerial relay with enough cache capacity to amplify and forward (AF) received signals between narrow band (NB)-IoT device and eNodeB. This paper optimizes the unconstrained trajectory of the UAV to maximize the EE of UAV-enabled IoT system to achieve the green communication. Due to the objective function is a fraction and is non-convex, it's hard to solve the optimization problem. Therefore, this paper alternately optimizes trajectory in source subspace and destination subspace with the other fixed and comes up with an algorithm based on successive convex approximation (SCA) method and Dinkelbach method to obtain a local optimal solution. Numerical results show that the proposed UAV trajectory design method can obtain much bigger EE than the running track (RT) trajectory and circular trajectory. Besides, the proposed cache-enabled AF strategy can obtain much bigger EE than non cache-enabled AF strategy.https://ieeexplore.ieee.org/document/9125909/Energy efficiencyrelaysthe Internet of Things (IoT)unmanned aerial vehiclessuccessive convex approximation |
| spellingShingle | Kang Song Jifa Zhang Zhengxia Ji Jing Jiang Chunguo Li Energy-Efficiency for IoT System With Cache-Enabled Fixed-Wing UAV Relay IEEE Access Energy efficiency relays the Internet of Things (IoT) unmanned aerial vehicles successive convex approximation |
| title | Energy-Efficiency for IoT System With Cache-Enabled Fixed-Wing UAV Relay |
| title_full | Energy-Efficiency for IoT System With Cache-Enabled Fixed-Wing UAV Relay |
| title_fullStr | Energy-Efficiency for IoT System With Cache-Enabled Fixed-Wing UAV Relay |
| title_full_unstemmed | Energy-Efficiency for IoT System With Cache-Enabled Fixed-Wing UAV Relay |
| title_short | Energy-Efficiency for IoT System With Cache-Enabled Fixed-Wing UAV Relay |
| title_sort | energy efficiency for iot system with cache enabled fixed wing uav relay |
| topic | Energy efficiency relays the Internet of Things (IoT) unmanned aerial vehicles successive convex approximation |
| url | https://ieeexplore.ieee.org/document/9125909/ |
| work_keys_str_mv | AT kangsong energyefficiencyforiotsystemwithcacheenabledfixedwinguavrelay AT jifazhang energyefficiencyforiotsystemwithcacheenabledfixedwinguavrelay AT zhengxiaji energyefficiencyforiotsystemwithcacheenabledfixedwinguavrelay AT jingjiang energyefficiencyforiotsystemwithcacheenabledfixedwinguavrelay AT chunguoli energyefficiencyforiotsystemwithcacheenabledfixedwinguavrelay |