NDLI: Energy-aware deployment of dense heterogeneous cellular networks with QoS constraints

Content Provider	Springer Nature Link
Author	Cui, Qimei Cui, Zhiyan Zheng, Wei Jäntti, Riku Xie, Weiliang
Copyright Year	2016
Abstract	The base station (BS) configuration is a key factor to improve energy efficiency (EE). In this paper, we focus on designing the network deployment parameters (i.e., BS densities) for biased K-tier heterogeneous cellular network (HCN) with quality of service (QoS) provisioning. Using appropriate approximations, we derive the closed-form expressions of optimal BS density across all tiers to minimize the area power consumption (APC) by applying the stochastic geometry theory, while satisfying the users’ QoS requirements. These results are used to obtain some new insights into the EE performance of biased HCN deployment. With the aid of this approach, the best type of BSs to be deployed or switched off for energy saving purposes can be identified from the perspectives of BS transmission power. More precisely, if the BS transmission power ratio between an arbitrary pair of tiers of K-tier HCN, e.g., the small cell BS and macro BS tiers, is higher than a threshold which is a function of path loss exponent, bias factor and power consumption, the small cell BSs are preferred. The opposite situation takes place otherwise. Furthermore, it is also shown that, compared to the unbiased HCN scenario, significant energy savings are possible by appropriately biasing the HCN and optimizing the BS density, subject to the QoS constraints among all tiers.本文从全网角度研究任意K层偏置异构蜂窝网络部署问题, 基于随机几何数学理论推导出在满足每一层网络中用户速率覆盖需求的约束下最小化网络能耗的基站部署密度闭式解, 进一步得出能效最优的基站部署类型。当K层异构网络中任意两层(例如第i层和第j层)的基站发射功率之比大于特定门限(与路损因子、偏置因子及基站功耗相关)时, 尽可能多的部署第i层基站, 关闭第j层基站, 优化的基站部署密度由闭式解得到。反之则优化的部署策略相反。相比于非偏置异构网络, 偏置异构网络通过合理的设置偏置因子可以显著节能。在满足每一层网络用户速率覆盖需求的约束条件下, 研究基于能效的任意K层偏置异构网络的最优部署策略。
Starting Page	1
Ending Page	18
Page Count	18
File Format	PDF
ISSN	1674733X
Journal	Science in China Series : Information Sciences
Volume Number	60
Issue Number	4
e-ISSN	18691919
Language	Chinese
Publisher	Science China Press
Publisher Date	2016-11-16
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	heterogeneous cellular networks stochastic geometry energy efficiency BS density energy saving Information Systems and Communication Service
Content Type	Text
Resource Type	Article
Subject	Computer Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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