Power Allocation Scheme for Femto-to-Macro Downlink Interference Reduction for Smart Devices in Ambient Intelligence

Power Allocation Scheme for Femto-to-Macro Downlink Interference Reduction for Smart Devices in Ambient Intelligence

In this paper, we present an analysis on the characteristics of cross-tier interference in regard to femtocells deployed in LTE cellular networks. We also present a cross-tier SLNR-based water filling (CSWF) power allocation algorithm for the reduction of interference from femtocell to macrocell for...

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Main Authors: Xin Su, Chengchao Liang, Dongmin Choi, Chang Choi
Format: Article
Language:English
Published: Hindawi Limited 2016-01-01
Series:Mobile Information Systems
Online Access:http://dx.doi.org/10.1155/2016/7172515
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spelling doaj-b983f596561147cdbd9e4b1b44d65c112021-07-02T03:18:37ZengHindawi LimitedMobile Information Systems1574-017X1875-905X2016-01-01201610.1155/2016/71725157172515Power Allocation Scheme for Femto-to-Macro Downlink Interference Reduction for Smart Devices in Ambient IntelligenceXin Su0Chengchao Liang1Dongmin Choi2Chang Choi3College of IoT Engineering, Changzhou Key Laboratory of Robotics and Intelligent Technology, Hohai University, Changzhou, ChinaDepartment of Systems and Computer Engineering, Carleton University, Ottawa, ON, CanadaDivision of Undeclared Majors, Chosun University, Gwangju, Republic of KoreaDepartment of Computer Engineering, Chosun University, Gwangju, Republic of KoreaIn this paper, we present an analysis on the characteristics of cross-tier interference in regard to femtocells deployed in LTE cellular networks. We also present a cross-tier SLNR-based water filling (CSWF) power allocation algorithm for the reduction of interference from femtocell to macrocell for smart devices used in ambient intelligence. The results of this study show that CSWF significantly improves the macro UE performance around a femtocell access point (AP) from the SINR and throughput perspective. The CSWF algorithm also provides a relative gain on the throughput of femtocell UEs compared to frequency partitioning. Furthermore, the proposed algorithm has a low complexity and is implemented on the femto-AP side only, therefore not affecting the macro system.http://dx.doi.org/10.1155/2016/7172515
collection DOAJ
language English
format Article
sources DOAJ
author Xin Su
Chengchao Liang
Dongmin Choi
Chang Choi
spellingShingle Xin Su
Chengchao Liang
Dongmin Choi
Chang Choi
Power Allocation Scheme for Femto-to-Macro Downlink Interference Reduction for Smart Devices in Ambient Intelligence
Mobile Information Systems
author_facet Xin Su
Chengchao Liang
Dongmin Choi
Chang Choi
author_sort Xin Su
title Power Allocation Scheme for Femto-to-Macro Downlink Interference Reduction for Smart Devices in Ambient Intelligence
title_short Power Allocation Scheme for Femto-to-Macro Downlink Interference Reduction for Smart Devices in Ambient Intelligence
title_full Power Allocation Scheme for Femto-to-Macro Downlink Interference Reduction for Smart Devices in Ambient Intelligence
title_fullStr Power Allocation Scheme for Femto-to-Macro Downlink Interference Reduction for Smart Devices in Ambient Intelligence
title_full_unstemmed Power Allocation Scheme for Femto-to-Macro Downlink Interference Reduction for Smart Devices in Ambient Intelligence
title_sort power allocation scheme for femto-to-macro downlink interference reduction for smart devices in ambient intelligence
publisher Hindawi Limited
series Mobile Information Systems
issn 1574-017X
1875-905X
publishDate 2016-01-01
description In this paper, we present an analysis on the characteristics of cross-tier interference in regard to femtocells deployed in LTE cellular networks. We also present a cross-tier SLNR-based water filling (CSWF) power allocation algorithm for the reduction of interference from femtocell to macrocell for smart devices used in ambient intelligence. The results of this study show that CSWF significantly improves the macro UE performance around a femtocell access point (AP) from the SINR and throughput perspective. The CSWF algorithm also provides a relative gain on the throughput of femtocell UEs compared to frequency partitioning. Furthermore, the proposed algorithm has a low complexity and is implemented on the femto-AP side only, therefore not affecting the macro system.
url http://dx.doi.org/10.1155/2016/7172515
work_keys_str_mv AT xinsu powerallocationschemeforfemtotomacrodownlinkinterferencereductionforsmartdevicesinambientintelligence
AT chengchaoliang powerallocationschemeforfemtotomacrodownlinkinterferencereductionforsmartdevicesinambientintelligence
AT dongminchoi powerallocationschemeforfemtotomacrodownlinkinterferencereductionforsmartdevicesinambientintelligence
AT changchoi powerallocationschemeforfemtotomacrodownlinkinterferencereductionforsmartdevicesinambientintelligence
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