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Paper Abstract and Keywords
Presentation 2019-10-03 11:15
[Poster Presentation] A Study of Turbo Equalization for OFDM Systems under Multipath Environment with Long Delay
Masakazu Kizawa, Tetsushi Ikegami (Meiji Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In Orthogonal Frequency Division Multiplexing (OFDM) systems, a guard interval (GI) is generally added to avoid the effect of multipath delay which results in Inter-Symbol-Interference (ISI). The length of GI is adjusted to a maximum delay spread (MDS) of an assumed channel. However, in a mobile communication, the characteristic of a channel will change with environment and it can be possible that the instantaneous maximum multipath delay exceeds the fixed GI length in the worst case. In this case, the system suffers from the self-interference resulting from ISI. In this presentation, we consider an OFDM system in which bit data are encoded by Low-density Parity-Check (LDPC) code per sub-block to recover from the signals contaminated with interference and show simulation results when a self-interference cancellation is iteratively performed in frequency domain.
Keyword (in Japanese) (See Japanese page) 
(in English) OFDM / MIMO / LDPC / Multipath with long delay / Interference cancellation / Channel equalization / /  
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Conference Information
Committee MIKA  
Conference Date 2019-10-02 - 2019-10-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Communication System, etc. 
Paper Information
Registration To MIKA 
Conference Code 2019-10-MIKA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Turbo Equalization for OFDM Systems under Multipath Environment with Long Delay 
Sub Title (in English)  
Keyword(1) OFDM  
Keyword(2) MIMO  
Keyword(3) LDPC  
Keyword(4) Multipath with long delay  
Keyword(5) Interference cancellation  
Keyword(6) Channel equalization  
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1st Author's Name Masakazu Kizawa  
1st Author's Affiliation Meiji University (Meiji Univ.)
2nd Author's Name Tetsushi Ikegami  
2nd Author's Affiliation Meiji University (Meiji Univ.)
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Speaker Author-1 
Date Time 2019-10-03 11:15:00 
Presentation Time 50 minutes 
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