IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2005-07-21 10:55
Mappping in MIMO Systems using Soft-Decision Decoding
Satoshi Gounai (TUS), Tomoaki Ohtsuki (Keio), Toshinobu Kaneko (TUS)
Abstract (in Japanese) (See Japanese page) 
(in English) Multiple-Input Multiple-Output (MIMO) systems can achieve high data-rate and high capacity transmission.
Since different signals are transmitted by each antenna simultaneously, interference occurs between transmitted signals.
We have to detect each signal from the multiplexed signal.

The Minimum Mean Square Error (MMSE) signal detection realizes signal detection in linear time.
However, the MMSE signal detection can not remove interference of other signals completely.
The MMSE signal detection with iterative soft interference cancellation has gained a lot of interests.
In multi-level modulation there are least-significant-bit (LSB) and most-significant-bit (MSB).
MSB is stronger for error than LSB.
In soft-decision decoding, the initial LLR of information bit and parity bit affect performance.

In this report, we evaluate several mappings of 16QAM modulation with turbo code or LDPC code in MIMO systems.
From the simulation, we show that mapping affects performance of MIMO system with soft decision decoding greatly.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO / LDPC code / Turbo code / MMSE-SIC / / / /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 196, RCS2005-45, pp. 31-36, July 2005.
Paper # RCS2005-45 
Date of Issue 2005-07-14 (RCS) 
ISSN Print edition: ISSN 0913-5685
Download PDF

Conference Information
Committee NS RCS  
Conference Date 2005-07-21 - 2005-07-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Okayama Univ.(Tsushima Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Networks, Mobile IP, Wireless Communication, etc. 
Paper Information
Registration To RCS 
Conference Code 2005-07-NS-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Mappping in MIMO Systems using Soft-Decision Decoding 
Sub Title (in English)  
Keyword(1) MIMO  
Keyword(2) LDPC code  
Keyword(3) Turbo code  
Keyword(4) MMSE-SIC  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Satoshi Gounai  
1st Author's Affiliation Tokyo University of Science (TUS)
2nd Author's Name Tomoaki Ohtsuki  
2nd Author's Affiliation Keio University (Keio)
3rd Author's Name Toshinobu Kaneko  
3rd Author's Affiliation Tokyo University of Science (TUS)
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Speaker Author-1 
Date Time 2005-07-21 10:55:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2005-45 
Volume (vol) vol.105 
Number (no) no.196 
Page pp.31-36 
#Pages
Date of Issue 2005-07-14 (RCS) 


[Return to Top Page]

[Return to IEICE Web Page]


The Institute of Electronics, Information and Communication Engineers (IEICE), Japan