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Paper Abstract and Keywords
Presentation 2019-01-25 14:50
High Density Spectrum Sharing Method among Micro Operators considering Mesurement-based Spectrum Database
Hirofumi Nakajo, Yuya Aoki, Keita Katagiri, Takeo Fujii (UEC)
Abstract (in Japanese) (See Japanese page) 
(in English) In 5G, micro operator and local 5G concepts that arrange small cells with high flexibility and scalability attract attention. In the micro operator concept, multiple small cells are communicated in the same frequency band. In this case, it is necessary to arrange the small cells as densely as possible and to utilize the most of spatial non interfered spectrum. However, as the density of small cells increases, the degradation of communication quality due to inter-cell interference becomes increasing. On the other hand, as a highly radio environment estimation method, Measurement-based Spectrum Database (MSD) attracts attention. In the MSD, radio environment information is gathered by huge number of terminals and the gathered datasets are statistically processed in each mesh. In this paper, we propose a method to increase the density of small cells while satisfying communication quality in multiple small cell environments considering the MSD. The proposed method estimates the probability distribution of Signal-to-Interference plus Noise power Ratio (SINR) in each small cell and accumulates in the MSD. Based on the estimated probability distribution, interference power control that satisfies the desired outage probability is performed and maximize the number of small cells that can share the frequencies.
Keyword (in Japanese) (See Japanese page) 
(in English) Spectrum Database / Spectrum Sharing / Power Control / Radio Propagation / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 421, SR2018-115, pp. 117-122, Jan. 2019.
Paper # SR2018-115 
Date of Issue 2019-01-17 (SR) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee SR  
Conference Date 2019-01-24 - 2019-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Corasse, Fukushima city (Fukushima prefecture) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) cognitive radio, machine learning application, heterogeneous network, SDN, IoT etc. 
Paper Information
Registration To SR 
Conference Code 2019-01-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) High Density Spectrum Sharing Method among Micro Operators considering Mesurement-based Spectrum Database 
Sub Title (in English)  
Keyword(1) Spectrum Database  
Keyword(2) Spectrum Sharing  
Keyword(3) Power Control  
Keyword(4) Radio Propagation  
1st Author's Name Hirofumi Nakajo  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Yuya Aoki  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Keita Katagiri  
3rd Author's Affiliation The University of Electro-Communications (UEC)
4th Author's Name Takeo Fujii  
4th Author's Affiliation The University of Electro-Communications (UEC)
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Date Time 2019-01-25 14:50:00 
Presentation Time 25 
Registration for SR 
Paper # IEICE-SR2018-115 
Volume (vol) IEICE-118 
Number (no) no.421 
Page pp.117-122 
#Pages IEICE-6 
Date of Issue IEICE-SR-2019-01-17 

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