Energy Efficiency Consideration for Indoor Femtocell Networks in TV White Spaces
The federal communications commission (FCC) took the unprecedented step to approve the usage of TV white spaces, i.e., locally vacant TV channels, in 2012. This TV spectrum will present new opportunities for wireless access technologies and applications, e.g. femtocell networks. The utilization of T...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8126784/ |
| _version_ | 1818912998415138816 |
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| author | Wenjie Zhang Guanglin Zhang Yifeng Zheng Lingfu Xie Chai Kiat Yeo |
| author_facet | Wenjie Zhang Guanglin Zhang Yifeng Zheng Lingfu Xie Chai Kiat Yeo |
| author_sort | Wenjie Zhang |
| collection | DOAJ |
| description | The federal communications commission (FCC) took the unprecedented step to approve the usage of TV white spaces, i.e., locally vacant TV channels, in 2012. This TV spectrum will present new opportunities for wireless access technologies and applications, e.g. femtocell networks. The utilization of TV white spaces in femtocell networks also comes with some technical challenges. One of the most fundamental is that how much capacity and energy efficiency can be achieved in TV white spaces network. Prior works only focused on capacity consideration for cellular network in outdoor scenario leaving important femtocell network in indoor scenario largely open for investigation. In this paper, we explore the capacity and energy efficiency for femtocell network by developing a TV white spaces reuse and power allocation scheme. The problem is formulated into an optimization problem with the objective to maximize the energy efficiency achieved by a femtocell network, while keeping the interference to the primary receiver and macro receiver at an acceptable level. We demonstrate the existence of a unique globally optimal transmit power vector for all the femtocells, and propose a gradient absent algorithm to obtain it. Simulation results show that the femtocell can have a considerable capacity and energy efficiency improvement by using the TV channels. |
| first_indexed | 2024-12-19T23:23:30Z |
| format | Article |
| id | doaj.art-92003ae6bf67455ebf46cc43a3decc93 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T23:23:30Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-92003ae6bf67455ebf46cc43a3decc932022-12-21T20:01:54ZengIEEEIEEE Access2169-35362018-01-0161565157610.1109/ACCESS.2017.27794678126784Energy Efficiency Consideration for Indoor Femtocell Networks in TV White SpacesWenjie Zhang0https://orcid.org/0000-0002-7470-3011Guanglin Zhang1https://orcid.org/0000-0003-4095-6843Yifeng Zheng2Lingfu Xie3Chai Kiat Yeo4School of Computer Sciences, Minnan Normal University, Zhangzhou, ChinaSchool of Information Science and Technology, Donghua University, Shanghai, ChinaSchool of Computer Sciences, Minnan Normal University, Zhangzhou, ChinaElectrical Engineering and Computer Science, Ningbo University, Ningbo, ChinaSchool of Computer Engineering, Nanyang Technological University, SingaporeThe federal communications commission (FCC) took the unprecedented step to approve the usage of TV white spaces, i.e., locally vacant TV channels, in 2012. This TV spectrum will present new opportunities for wireless access technologies and applications, e.g. femtocell networks. The utilization of TV white spaces in femtocell networks also comes with some technical challenges. One of the most fundamental is that how much capacity and energy efficiency can be achieved in TV white spaces network. Prior works only focused on capacity consideration for cellular network in outdoor scenario leaving important femtocell network in indoor scenario largely open for investigation. In this paper, we explore the capacity and energy efficiency for femtocell network by developing a TV white spaces reuse and power allocation scheme. The problem is formulated into an optimization problem with the objective to maximize the energy efficiency achieved by a femtocell network, while keeping the interference to the primary receiver and macro receiver at an acceptable level. We demonstrate the existence of a unique globally optimal transmit power vector for all the femtocells, and propose a gradient absent algorithm to obtain it. Simulation results show that the femtocell can have a considerable capacity and energy efficiency improvement by using the TV channels.https://ieeexplore.ieee.org/document/8126784/Energy efficiencyfemtocell networkgradient ascent algorithminterferenceTV white spaces |
| spellingShingle | Wenjie Zhang Guanglin Zhang Yifeng Zheng Lingfu Xie Chai Kiat Yeo Energy Efficiency Consideration for Indoor Femtocell Networks in TV White Spaces IEEE Access Energy efficiency femtocell network gradient ascent algorithm interference TV white spaces |
| title | Energy Efficiency Consideration for Indoor Femtocell Networks in TV White Spaces |
| title_full | Energy Efficiency Consideration for Indoor Femtocell Networks in TV White Spaces |
| title_fullStr | Energy Efficiency Consideration for Indoor Femtocell Networks in TV White Spaces |
| title_full_unstemmed | Energy Efficiency Consideration for Indoor Femtocell Networks in TV White Spaces |
| title_short | Energy Efficiency Consideration for Indoor Femtocell Networks in TV White Spaces |
| title_sort | energy efficiency consideration for indoor femtocell networks in tv white spaces |
| topic | Energy efficiency femtocell network gradient ascent algorithm interference TV white spaces |
| url | https://ieeexplore.ieee.org/document/8126784/ |
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