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Paper Abstract and Keywords
Presentation 2005-11-18 12:00
Impact of Shadowing Correlation on Multihop Cellular Systems in Single-Cell Environments
Atsushi Kusuda, Koji Yamamoto, Susumu Yoshida (Kyoto Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Multihop transmission is used in radio networks such as multihop cellular systems and mesh networks, and it may be superior to single-hop transmission under severe shadowing. In our previous studies, we modeled shadowing as a location-independent log-normal random variable and revealed the effect of multihop relaying on cellular communication systems. However, adjacent shadowing values are spatially correlated
because shadowing is caused by terrain configuration or obstacles between the transmitter and receiver. In this paper, we investigate the impact of decorrelation distance, whose typical value for the urban environment is 20 meters, on the coverage of multihop cellular systems in single-cell environments. By using a model for spatially correlated shadowing, numerical results reveal that when the coverage of single-hop cellular systems is ten times larger than the decorrelation distance, the introduction of multihop relaying may enhance the coverage without significant degradation due to the spatial correlation of shadowing.
Keyword (in Japanese) (See Japanese page) 
(in English) multihop transmission / shadowing / spatial correlation / outage probability / spectral efficiency / / /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 411, RCS2005-123, pp. 95-99, Nov. 2005.
Paper # RCS2005-123 
Date of Issue 2005-11-10 (RCS) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee RCS  
Conference Date 2005-11-17 - 2005-11-18 
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Place (in English)  
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Paper Information
Registration To RCS 
Conference Code 2005-11-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Impact of Shadowing Correlation on Multihop Cellular Systems in Single-Cell Environments 
Sub Title (in English)  
Keyword(1) multihop transmission  
Keyword(2) shadowing  
Keyword(3) spatial correlation  
Keyword(4) outage probability  
Keyword(5) spectral efficiency  
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1st Author's Name Atsushi Kusuda  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Koji Yamamoto  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Susumu Yoshida  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2005-11-18 12:00:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2005-123 
Volume (vol) vol.105 
Number (no) no.411 
Page pp.95-99 
#Pages
Date of Issue 2005-11-10 (RCS) 


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