NDLI: Femtocell-enhanced multi-target spectrum allocation strategy in LTE-A HetNets

Content Provider	IET Digital Library
Author	Niu, Chongyu Li, Yibing Hu, Rose Qingyang Ye, Fang
Abstract	Due to prominent advantages in local coverage enhancement and indoor cellular capacity improvement, femtocell (FC) is considered as a vital component in long-term evolution advanced (LTE-A) heterogeneous networks (HetNets). A two-tier LTE-A HetNet with conventional macro base stations in the first tier and femto base stations in the second tier is considered. Under this architecture, a new downlink interference evaluation scheme is proposed, based on which a FC enhanced multi-target resource allocation algorithm is developed to maximise user equipment (UE) throughput in a dense FC deployment scenario meanwhile providing every UE a minimum signal to interference plus noise rate (SINR) guarantee. The optimal resource allocation problem is formulated as a MAX-K cut problem based on the graph theory approach. System-level simulations reveal that intra-cell interference is greatly reduced and the spectral efficiency is significantly improved by using the proposed resource allocation scheme. Femtocell throughput is elevated significantly without causing much degradation on the macrocell throughput.
Starting Page	887
Ending Page	896
Page Count	10
ISSN	17518628
Volume Number	11
e-ISSN	17518636
Issue Number	Issue 6, Apr (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/11/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.1256
Journal	IET Communications
Publisher Date	2016-12-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Combinatorial Mathematics Downlink Interference Evaluation Scheme Electromagnetic Compatibility Femtocell-enhanced Multi-target Spectrum Allocation Strategy Femtocellular Radio Graph Theory Graph Theory Approach Indoor Cellular Capacity Improvement Interference Intra-cell Interference Local Coverage Enhancement Long Term Evolution Long-Term Evolution Advanced Heterogeneous Network MAX-K Cut Problem Mobile Radio System Multitarget Resource Allocation Algorithm System-level Simulations Two-tier LTE-A HetNet User Equipment
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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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
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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