Energy-efficient resource allocation algorithm for massive MIMO OFDMA downlink system
An algorithm is proposed for energy-efficient resource allocation scheme in massive MIMO OFDMA downlink mobile communication system.A mathematical formulation of optimization issue is provided with the objective of maximizing system energy efficiency lower bound under the minimum data rate requireme...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2015-07-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015192/ |
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| _version_ | 1841539668118601728 |
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| author | Ying HU Bao-feng JI Yong-ming HUANG Fei YU Lv-xi YANG |
| author_facet | Ying HU Bao-feng JI Yong-ming HUANG Fei YU Lv-xi YANG |
| author_sort | Ying HU |
| collection | DOAJ |
| description | An algorithm is proposed for energy-efficient resource allocation scheme in massive MIMO OFDMA downlink mobile communication system.A mathematical formulation of optimization issue is provided with the objective of maximizing system energy efficiency lower bound under the minimum data rate requirement of user,meanwhile the BS uses a zero-forcing(ZF) precoding.And then for optimizing energy efficiency function,the bandwidth allocation,power allocation and the number of antenna arrays at the BS are adjusted synchronously.First,an iterative algorithm derived from optimality condition for bandwidth assignment is proposed.Second,the properties of fractional programming and convex optimization are used to maximize the energy efficiency.Specifically,both the number of antenna arrays at the BS and the transmit data rate at the user are adjusted.Simulation results show that the proposed schemes not only have less iteration number but also have good perform for system energy efficiency and throughput. |
| format | Article |
| id | doaj-art-8de04a06730047c6b4e74e44197d46c7 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2015-07-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-8de04a06730047c6b4e74e44197d46c72025-01-14T06:46:40ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2015-07-013614959693955Energy-efficient resource allocation algorithm for massive MIMO OFDMA downlink systemYing HUBao-feng JIYong-ming HUANGFei YULv-xi YANGAn algorithm is proposed for energy-efficient resource allocation scheme in massive MIMO OFDMA downlink mobile communication system.A mathematical formulation of optimization issue is provided with the objective of maximizing system energy efficiency lower bound under the minimum data rate requirement of user,meanwhile the BS uses a zero-forcing(ZF) precoding.And then for optimizing energy efficiency function,the bandwidth allocation,power allocation and the number of antenna arrays at the BS are adjusted synchronously.First,an iterative algorithm derived from optimality condition for bandwidth assignment is proposed.Second,the properties of fractional programming and convex optimization are used to maximize the energy efficiency.Specifically,both the number of antenna arrays at the BS and the transmit data rate at the user are adjusted.Simulation results show that the proposed schemes not only have less iteration number but also have good perform for system energy efficiency and throughput.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015192/wireless communicationmassive MIMOOFDMAresource allocationdownlink systemenergy-efficient |
| spellingShingle | Ying HU Bao-feng JI Yong-ming HUANG Fei YU Lv-xi YANG Energy-efficient resource allocation algorithm for massive MIMO OFDMA downlink system Tongxin xuebao wireless communication massive MIMO OFDMA resource allocation downlink system energy-efficient |
| title | Energy-efficient resource allocation algorithm for massive MIMO OFDMA downlink system |
| title_full | Energy-efficient resource allocation algorithm for massive MIMO OFDMA downlink system |
| title_fullStr | Energy-efficient resource allocation algorithm for massive MIMO OFDMA downlink system |
| title_full_unstemmed | Energy-efficient resource allocation algorithm for massive MIMO OFDMA downlink system |
| title_short | Energy-efficient resource allocation algorithm for massive MIMO OFDMA downlink system |
| title_sort | energy efficient resource allocation algorithm for massive mimo ofdma downlink system |
| topic | wireless communication massive MIMO OFDMA resource allocation downlink system energy-efficient |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015192/ |
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