Power Control for Full-Duplex Relay-Enhanced Cellular Networks With QoS Guarantees
Full-duplex (FD) has emerged as a new communication paradigm with the potential advantage of enhancing the capacity of the wireless communication systems. In this paper, we consider an FD relay-enhanced cellular network, wherein the residual self-interference, the uplink-downlink interference, as we...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2017-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7879162/ |
| _version_ | 1818556829137895424 |
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| author | Xiaoyan Huang Kun Yang Fan Wu Supeng Leng |
| author_facet | Xiaoyan Huang Kun Yang Fan Wu Supeng Leng |
| author_sort | Xiaoyan Huang |
| collection | DOAJ |
| description | Full-duplex (FD) has emerged as a new communication paradigm with the potential advantage of enhancing the capacity of the wireless communication systems. In this paper, we consider an FD relay-enhanced cellular network, wherein the residual self-interference, the uplink-downlink interference, as well as the relay-access-link interference are the vital restrictions to network performance. To this end, we investigate power control design for the FD relay-enhanced cellular networks, so as to maximize the system spectral efficiency while fulfilling the quality of service (QoS) requirements of both the uplink and downlink user equipments (UEs). We characterize the properties of the optimal transmit power allocation, and propose a power control algorithm based on signomial programming to coordinate the transmit power of the uplink UE, base station, and relay stations to mitigate the interference. Meanwhile, we also derive the closed-form optimal transmit power allocation for the conventional half-duplex (HD) transmission mode. Moreover, we conduct extensive simulation experiments to study the network-level gain of the FD mode over the HD mode in the relay-enhanced cellular networks. Simulation results demonstrate that FD relaying outperforms HD relaying on improving the spectral and energy efficiency, as well as provisioning QoS guarantees for both the uplink and downlink users. |
| first_indexed | 2024-12-13T23:52:17Z |
| format | Article |
| id | doaj.art-393bcef38bce41e2ae2859c311cf9cb3 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T23:52:17Z |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-393bcef38bce41e2ae2859c311cf9cb32022-12-21T23:26:43ZengIEEEIEEE Access2169-35362017-01-0154859486910.1109/ACCESS.2017.26822797879162Power Control for Full-Duplex Relay-Enhanced Cellular Networks With QoS GuaranteesXiaoyan Huang0https://orcid.org/0000-0002-3487-5521Kun Yang1Fan Wu2Supeng Leng3https://orcid.org/0000-0003-0049-5982University of Electronic Science and Technology of China, Chengdu, ChinaUniversity of Essex, Colchester, U.K.University of Electronic Science and Technology of China, Chengdu, ChinaUniversity of Electronic Science and Technology of China, Chengdu, ChinaFull-duplex (FD) has emerged as a new communication paradigm with the potential advantage of enhancing the capacity of the wireless communication systems. In this paper, we consider an FD relay-enhanced cellular network, wherein the residual self-interference, the uplink-downlink interference, as well as the relay-access-link interference are the vital restrictions to network performance. To this end, we investigate power control design for the FD relay-enhanced cellular networks, so as to maximize the system spectral efficiency while fulfilling the quality of service (QoS) requirements of both the uplink and downlink user equipments (UEs). We characterize the properties of the optimal transmit power allocation, and propose a power control algorithm based on signomial programming to coordinate the transmit power of the uplink UE, base station, and relay stations to mitigate the interference. Meanwhile, we also derive the closed-form optimal transmit power allocation for the conventional half-duplex (HD) transmission mode. Moreover, we conduct extensive simulation experiments to study the network-level gain of the FD mode over the HD mode in the relay-enhanced cellular networks. Simulation results demonstrate that FD relaying outperforms HD relaying on improving the spectral and energy efficiency, as well as provisioning QoS guarantees for both the uplink and downlink users.https://ieeexplore.ieee.org/document/7879162/Wireless networksfull duplexrelayingpower controlspectral efficiency |
| spellingShingle | Xiaoyan Huang Kun Yang Fan Wu Supeng Leng Power Control for Full-Duplex Relay-Enhanced Cellular Networks With QoS Guarantees IEEE Access Wireless networks full duplex relaying power control spectral efficiency |
| title | Power Control for Full-Duplex Relay-Enhanced Cellular Networks With QoS Guarantees |
| title_full | Power Control for Full-Duplex Relay-Enhanced Cellular Networks With QoS Guarantees |
| title_fullStr | Power Control for Full-Duplex Relay-Enhanced Cellular Networks With QoS Guarantees |
| title_full_unstemmed | Power Control for Full-Duplex Relay-Enhanced Cellular Networks With QoS Guarantees |
| title_short | Power Control for Full-Duplex Relay-Enhanced Cellular Networks With QoS Guarantees |
| title_sort | power control for full duplex relay enhanced cellular networks with qos guarantees |
| topic | Wireless networks full duplex relaying power control spectral efficiency |
| url | https://ieeexplore.ieee.org/document/7879162/ |
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