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Paper Abstract and Keywords
Presentation 2017-11-08 09:00
Frequency Block-Dependent Online Probabilistic Activation Control of Base Stations Based on Observed System Throughput in Heterogeneous Networks
Akira Ujiie, Kenichi Higuchi (Tokyo Univ. of Science)
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we extend our previously reported online probabilistic activation/deactivation control of pico-base stations (BSs) in heterogeneous networks in order to accommodate the case where the overall system bandwidth of pico BSs is divided into multiple frequency blocks and the activation/deactivation control is conducted per-frequency block basis. By deactivating the signal transmission of unnecessary pico-BSs, the inter-cell interference is reduced resulting in an increase in system throughput. In the previously reported activation/deactivation control, activation/deactivation of each pico BS is stochastically adaptively controlled based on observed values of system throughput and activation/deactivation state at each time. By using the proposed frequency block-dependent online probabilistic activation control, the granularity of the activation/deactivation control is enhanced and higher system throughput is obtained. However, the higher granularity in the activation/deactivation control may result in the longer convergence time. To address the problem, we propose a method in which the number of activated frequency blocks is controlled in probabilistic manner in addition to the control in activation probability of each frequency block. Computer simulation results show that the proposed method increases the system throughput after the algorithm converges, while the convergence time is quite comparable to the case where the entire system bandwidth is activated or deactivated simultaneously.
Keyword (in Japanese) (See Japanese page) 
(in English) Heterogeneous networks / probabilistic activation control / transmission power control / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 284, RCS2017-204, pp. 1-6, Nov. 2017.
Paper # RCS2017-204 
Date of Issue 2017-11-01 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee AP RCS  
Conference Date 2017-11-08 - 2017-11-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukuoka University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2017-11-AP-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Frequency Block-Dependent Online Probabilistic Activation Control of Base Stations Based on Observed System Throughput in Heterogeneous Networks 
Sub Title (in English)  
Keyword(1) Heterogeneous networks  
Keyword(2) probabilistic activation control  
Keyword(3) transmission power control  
1st Author's Name Akira Ujiie  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Kenichi Higuchi  
2nd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Date Time 2017-11-08 09:00:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2017-204 
Volume (vol) IEICE-117 
Number (no) no.284 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2017-11-01 

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