User Cooperation in Wireless Powered Communication Networks With a Pricing Mechanism
This paper considers user cooperation and a pricing mechanism in a wireless-powered communication network (WPCN) in which two users harvest energy from a dedicated hybrid access point (H-AP), which has a constant power supply and acts as a power station during a downlink (DL). They also independentl...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2017-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8016332/ |
| _version_ | 1818369896606597120 |
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| author | Haole Chen Lin Xiao Dingcheng Yang Tao Zhang Laurie Cuthbert |
| author_facet | Haole Chen Lin Xiao Dingcheng Yang Tao Zhang Laurie Cuthbert |
| author_sort | Haole Chen |
| collection | DOAJ |
| description | This paper considers user cooperation and a pricing mechanism in a wireless-powered communication network (WPCN) in which two users harvest energy from a dedicated hybrid access point (H-AP), which has a constant power supply and acts as a power station during a downlink (DL). They also independently transmit their information to the H-AP [which acts as an information receiving station during an uplink (UL)] using the individually harvested energy. Based on the “doubly near-far”problem, this paper proposes a cooperative scheme among users in the WPCN. Compared with the source user (SU), the channel conditions for a helping user (HU), which is closer to the H-AP, is usually better for DL energy harvesting and for transmitting UL information. Thus, the HU can use its harvested energy to forward the SU's information to the H-AP. Furthermore, energy is usually scarce for each user in a WPCN; therefore, the HU is under no obligation to accept the SU's cooperative request and can choose to act selfishly to conserve resources. This paper presents a new pricing strategy to motivate the HU to sell its excess energy to help an SU complete a UL information transfer. Two transmission protocols are investigated: in the ideal case, the energy expenditure of the SU equals the energy used by the HU to relay information; in the normal case, the HU seeks additional profit. This paper formulates the SU's expenditures and relay data in the ideal case as an optimization problem. An investigation of relay placement and the SU communication mode selection problem are also discussed. The numerical results show that the proposed pricing strategy can significantly reduce the expected costs to the SU and improve the reliability of user UL communications in a WPCN. |
| first_indexed | 2024-12-13T23:31:08Z |
| format | Article |
| id | doaj.art-9e9995cfebbf4ebbae305814ea41077a |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T23:31:08Z |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-9e9995cfebbf4ebbae305814ea41077a2022-12-21T23:27:25ZengIEEEIEEE Access2169-35362017-01-015168951690310.1109/ACCESS.2017.27404038016332User Cooperation in Wireless Powered Communication Networks With a Pricing MechanismHaole Chen0Lin Xiao1https://orcid.org/0000-0001-5608-3106Dingcheng Yang2Tao Zhang3Laurie Cuthbert4Information Engineering School, Nanchang University, Nanchang, ChinaInformation Engineering School, Nanchang University, Nanchang, ChinaInformation Engineering School, Nanchang University, Nanchang, ChinaInformation Engineering School, Nanchang University, Nanchang, ChinaInformation Systems Research Centre, Macao Polytechnic Institute, Macao, ChinaThis paper considers user cooperation and a pricing mechanism in a wireless-powered communication network (WPCN) in which two users harvest energy from a dedicated hybrid access point (H-AP), which has a constant power supply and acts as a power station during a downlink (DL). They also independently transmit their information to the H-AP [which acts as an information receiving station during an uplink (UL)] using the individually harvested energy. Based on the “doubly near-far”problem, this paper proposes a cooperative scheme among users in the WPCN. Compared with the source user (SU), the channel conditions for a helping user (HU), which is closer to the H-AP, is usually better for DL energy harvesting and for transmitting UL information. Thus, the HU can use its harvested energy to forward the SU's information to the H-AP. Furthermore, energy is usually scarce for each user in a WPCN; therefore, the HU is under no obligation to accept the SU's cooperative request and can choose to act selfishly to conserve resources. This paper presents a new pricing strategy to motivate the HU to sell its excess energy to help an SU complete a UL information transfer. Two transmission protocols are investigated: in the ideal case, the energy expenditure of the SU equals the energy used by the HU to relay information; in the normal case, the HU seeks additional profit. This paper formulates the SU's expenditures and relay data in the ideal case as an optimization problem. An investigation of relay placement and the SU communication mode selection problem are also discussed. The numerical results show that the proposed pricing strategy can significantly reduce the expected costs to the SU and improve the reliability of user UL communications in a WPCN.https://ieeexplore.ieee.org/document/8016332/Cooperative communicationswireless powered communication networkpricing mechanismsustainable communicationdistance constrainrelay placement optimization |
| spellingShingle | Haole Chen Lin Xiao Dingcheng Yang Tao Zhang Laurie Cuthbert User Cooperation in Wireless Powered Communication Networks With a Pricing Mechanism IEEE Access Cooperative communications wireless powered communication network pricing mechanism sustainable communication distance constrain relay placement optimization |
| title | User Cooperation in Wireless Powered Communication Networks With a Pricing Mechanism |
| title_full | User Cooperation in Wireless Powered Communication Networks With a Pricing Mechanism |
| title_fullStr | User Cooperation in Wireless Powered Communication Networks With a Pricing Mechanism |
| title_full_unstemmed | User Cooperation in Wireless Powered Communication Networks With a Pricing Mechanism |
| title_short | User Cooperation in Wireless Powered Communication Networks With a Pricing Mechanism |
| title_sort | user cooperation in wireless powered communication networks with a pricing mechanism |
| topic | Cooperative communications wireless powered communication network pricing mechanism sustainable communication distance constrain relay placement optimization |
| url | https://ieeexplore.ieee.org/document/8016332/ |
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