Presentation 2018-06-22
Energy Efficiency Optimization in D2D-enabled Heterogeneous Cellular Networks
Fereidoun H. Panahi, Farzad H. Panahi, Ghaith Hattab, Tomoaki Ohtsuki, Danijela Cabric,
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Abstract(in Japanese) (See Japanese page)
Abstract(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)
Keyword(in English) Green heterogeneous networks / device-to-device communication / stochastic geometry / energy efficiency
Paper # RCS2018-76
Date of Issue 2018-06-13 (RCS)

Conference Information
Committee RCS
Conference Date 2018/6/20(3days)
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.
Chair Tomoaki Otsuki(Keio Univ.)
Vice Chair Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.)
Secretary Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara
Assistant Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp)

Paper Information
Registration To Technical Committee on Radio Communication Systems
Language ENG
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)
Date 2018-06-22
Paper # RCS2018-76
Volume (vol) vol.118
Number (no) RCS-101
Page pp.pp.243-248(RCS),
#Pages 6
Date of Issue 2018-06-13 (RCS)