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Paper Abstract and Keywords
Presentation 2011-06-23 10:00
Wireless base station sleep mode control for energy saving with network congestion avoidance and network outage suppression
Taichi Kumagai, Yasuhiko Matsunaga, Hiroto Sugahara, Kosei Kobayashi, Hisashi Futaki (NEC) RCS2011-38
Abstract (in Japanese) (See Japanese page) 
(in English) Since wireless base stations account for a major portion of energy consumption in mobile networks, there is a growing demand for energy-efficient wireless base stations. Dynamic sleep mode control of a base station reduces considerable energy consumption, however, it must avoid traffic congestion and coverage dead spots in the surrounding cells. In this paper, we propose a wireless base station sleep mode control method based on propagation prediction and traffic load that minimizes traffic congestion and coverage dead spots. Taking the change of traffic load and radio quality caused by sleep mode control into account, we evaluated an energy reduction ratio per day and coverage dead spots ratio assuming a non-uniform LTE cell layout in an urban environment. As a result, we confirmed that the proposed method could achieve higher energy reduction ratio than the conventional sleep mode control method based on traffic load only. With the proposed method, the energy reduction ratio per day was up to 30 % when antenna tilt was set between 5 degrees to 12 degrees.
Keyword (in Japanese) (See Japanese page) 
(in English) Energy saving / Wireless base station / Sleep mode control / Propagation prediction / SON / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 94, RCS2011-38, pp. 19-24, June 2011.
Paper # RCS2011-38 
Date of Issue 2011-06-16 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Download PDF RCS2011-38

Conference Information
Committee RCS  
Conference Date 2011-06-23 - 2011-06-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Ryukyu Univ. 
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 2011-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Wireless base station sleep mode control for energy saving with network congestion avoidance and network outage suppression 
Sub Title (in English)  
Keyword(1) Energy saving  
Keyword(2) Wireless base station  
Keyword(3) Sleep mode control  
Keyword(4) Propagation prediction  
Keyword(5) SON  
1st Author's Name Taichi Kumagai  
1st Author's Affiliation NEC Corporation (NEC)
2nd Author's Name Yasuhiko Matsunaga  
2nd Author's Affiliation NEC Corporation (NEC)
3rd Author's Name Hiroto Sugahara  
3rd Author's Affiliation NEC Corporation (NEC)
4th Author's Name Kosei Kobayashi  
4th Author's Affiliation NEC Corporation (NEC)
5th Author's Name Hisashi Futaki  
5th Author's Affiliation NEC Corporation (NEC)
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Date Time 2011-06-23 10:00:00 
Presentation Time 20 
Registration for RCS 
Paper # IEICE-RCS2011-38 
Volume (vol) IEICE-111 
Number (no) no.94 
Page pp.19-24 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2011-06-16 

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