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Paper Abstract and Keywords
Presentation 2018-06-22 15:15
Energy Efficiency Optimization in D2D-enabled Heterogeneous Cellular Networks
Fereidoun H. Panahi (Keio Univ.), Farzad H. Panahi (UOK), Ghaith Hattab (UCLA), Tomoaki Ohtsuki (Keio Univ.), Danijela Cabric (UCLA)
Abstract (in Japanese) (See Japanese page) 
(in English) Small cells (SCs) offer a promising approach to meeting the exponentially growing data rate demands. However, dense deployment of SCs can degrade the energy-efficiency (EE) of the network due to the additional deployed base stations (BSs). Under heterogeneous network (HetNets) deployments, SCs can be dynamically switched off for energy saving when traffic load decreases. We do this by defining a load-dependent transmission power coefficient (TPC) for SC BSs. In addition, with Device-to-Device (D2D) communication, mobile users in proximity can establish a direct link and bypass the BSs, thereby offloading the network infrastructure and providing further improvement of EE. In this paper, the objective is to rely on both D2D communications and sleeping SC BSs to offload traffic from the mains powered macrocell BSs leading to energy saving in the network. First, we derive the EE expression of the D2D-enabled HetNet. Then, to maximize the EE of the D2D-enabled HetNet, the optimal load-dependent TPC for SC BSs is obtained under constraints on both network?s coverage and rate. Using simulations, we will investigate the potential effects of the TPC defined for SC BSs as well as the introduced D2D layer on the network EE.
Keyword (in Japanese) (See Japanese page) 
(in English) Green heterogeneous networks / device-to-device communication / stochastic geometry / energy efficiency / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 101, RCS2018-76, pp. 243-248, June 2018.
Paper # RCS2018-76 
Date of Issue 2018-06-13 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee RCS  
Conference Date 2018-06-20 - 2018-06-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagasaki University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2018-06-RCS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Energy Efficiency Optimization in D2D-enabled Heterogeneous Cellular Networks 
Sub Title (in English)  
Keyword(1) Green heterogeneous networks  
Keyword(2) device-to-device communication  
Keyword(3) stochastic geometry  
Keyword(4) energy efficiency  
1st Author's Name Fereidoun H. Panahi  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Farzad H. Panahi  
2nd Author's Affiliation University of Kurdistan (UOK)
3rd Author's Name Ghaith Hattab  
3rd Author's Affiliation University of California, Los Angeles (UCLA)
4th Author's Name Tomoaki Ohtsuki  
4th Author's Affiliation Keio University (Keio Univ.)
5th Author's Name Danijela Cabric  
5th Author's Affiliation University of California, Los Angeles (UCLA)
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Date Time 2018-06-22 15:15:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2018-76 
Volume (vol) IEICE-118 
Number (no) no.101 
Page pp.243-248 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2018-06-13 

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