Committee 
Date Time 
Place 
Paper Title / Authors 
Abstract 
Paper # 
IT, RCS, SIP 
20230125 14:10 
Gunma 
Maebashi Terrsa (Primary: Onsite, Secondary: Online) 
Cyclic Hadamardtype Matrices on Finite Fields and Their Properties Iori Kodama, Tetsuya Kojima (NIT, Tokyo College) IT202266 SIP2022117 RCS2022245 
Hadamard matrix is defined as a square matrix where any components are −1 or +1, and where any pairs of rows are mutuall... [more] 
IT202266 SIP2022117 RCS2022245 pp.211216 
RCS, NS (Joint) 
20211216 10:35 
Nara 
Naraken Bunka Kaikan and Online (Primary: Onsite, Secondary: Online) 
Highly efficient multihop transmission using encryptionthencompression based on CRCaided Polar code Ryota Yatsu, Koji Ishibashi (UEC), Hideki Endo, Sota Tsuchiya (Tokyo Gas) RCS2021175 
Packet aggregation with compression has been proposed as one of the methods in order to reduce the transmission time, wh... [more] 
RCS2021175 pp.16 
RCS 
20190619 16:25 
Okinawa 
Miyakojima Hirara Port Terminal Building 
A Study on Multilevel Coded Modulation Based on CRCConcatenated Polar Codes Yuki Yajima, Hideki Ochiai (Yokohama National Univ.) RCS201960 
Polar codes are shown to approach the channel capacity as the codeword length increases,
and the recent studies have s... [more] 
RCS201960 pp.137142 
RCS, SIP, IT 
20190201 11:40 
Osaka 
Osaka University 
Linear Permutation Polynomial Codes Ryoichiro Yoshida, Kenta Kasai (Tokyo Tech) IT201863 SIP201893 RCS2018270 
Quasicyclic lowdensity paritycheck (QCLDPC) codes are one of the most important code classes of LDPC codes. They hav... [more] 
IT201863 SIP201893 RCS2018270 pp.161166 
IT 
20181218 16:35 
Fukushima 
Spa Resort Hawaiians 
[Invited Talk]
Construction and Decoding of Codes over SymbolPair Read Channels Masanori Hirotomo (Saga Univ.), Makoto Takita, Masakatu Morii (Kobe Univ.) IT201834 
In this paper, we explain construction and decoding of codes over symbolpair red channels. [more] 
IT201834 pp.1924 
ASN, NS, RCS, SR, RCC (Joint) 
20180713 17:05 
Hokkaido 
Hakodate Arena 
On ReducedComplexity Coded MIMO Spatial Multiplexing System based on MatchedFilter Detecter and CRCAssisted Interference Cancellation Kentaro Masukawa, Hideki Ochiai (Yokohama Natl. Univ.) RCS2018130 
Optimal detection of multipleinput multipleoutput~(MIMO) spatial multiplexing
systems becomes challenging as the nu... [more] 
RCS2018130 pp.255260 
IT, EMM 
20180518 10:50 
Tokyo 
Ookayama Campus, Tokyo Institute of Technology 
Hadamardtype Matrices on Finite Fields and Complete Complementary Codes Tetsuya Kojima (NIT, Tokyo College) IT20187 EMM20187 
Hadamard matrix is defined as a square matrix where any components are $1$ or $+1$, and where any pairs of rows are mut... [more] 
IT20187 EMM20187 pp.3540 
ISEC, WBS, IT 
20170309 14:25 
Tokyo 
TOKAI University 
Trellis Reduction for TailBiting Convolutional Codes Using Characteristic Matrices and Cyclically Shifted CodeSubsequences Masato Tajima IT2016108 ISEC201698 WBS201684 
Trellis reduction for tailbiting convolutional codes is investigated. A given tailbiting (TB) convolutional code is re... [more] 
IT2016108 ISEC201698 WBS201684 pp.6166 
IT 
20160902 11:25 
Saga 
New Heartpia 
Consideration of continuous elements pattern for Roos bound on cyclic codes Junru Zheng (Kyushu Women's Univ.), Takayasu Kaida (Kinndai Univ.) IT201638 
For cyclic codes, many lower bounds are suggested.
The Roos bound is one of the wellknown lower bounds for the minimu... [more] 
IT201638 pp.2528 
IT 
20140919 09:25 
Chiba 

On Decoding Method of Cyclic Codes over SymbolPair Read Channels Makoto Takita (Kobe Univ.), Masanori Hirotomo (Saga Univ.), Masakatu Morii (Kobe Univ.) IT201442 
Cassuto and Blaum proposed new error correcting codes which are called symbolpair codes. They gave a coding framework f... [more] 
IT201442 pp.712 
IT 
20140718 16:15 
Hyogo 
Kobe University 
On Applications for Complex Modulation by ConstantWeight and MultiValued Codes Takayasu Kaida (Kinki Univ.), Junru Zheng (Kyusyhu Women's Univ.), Keiichi Takahashi (Kinki Univ.) IT201438 
For transmission of information, a method using the values in the constantweight and multivalued code that is proposed... [more] 
IT201438 pp.149152 
IT 
20130726 16:10 
Tokyo 
NishiWaseda campus, Waseda University 
A Method for Computing the Minimum Pair Distance of Cyclic Codes Takuya Sugimoto (Kobe Univ.), Masanori Hirotomo (Saga Univ.), Masakatu Morii (Kobe Univ.) IT201330 
Cassuto and Blaum proposed new error correcting codes which are called {it symbolpair codes}.
They gave a coding frame... [more] 
IT201330 pp.95100 
IT 
20130524 13:10 
Fukui 
Hotel Matuya Sensen at Awaraonsen, Fukui Pref. 
A Note on Fast Algorithms of Shift Bound for Cyclic Codes Takayasu Kaida (Kinki Univ.), Junru Zheng (Kyushu Women's Univ.) IT20135 
The shift bound is one of wellknown and good bounds for the designed minimum distance in cyclic codes. However there is... [more] 
IT20135 pp.1922 
IT, ISEC, WBS 
20130308 10:55 
Osaka 
Kwansei Gakuin Univ., OsakaUmeda Campus 
A Note on Linear Complexity for ConstantWeight Codes Takayasu Kaida (Kinki Univ.), Junru Zheng (Kyushu Women's Univ.) IT201290 ISEC2012108 WBS201276 
For cyclic codes (periodic sequences) over finite set from cyclic difference set proposed by authors, the Hamming weight... [more] 
IT201290 ISEC2012108 WBS201276 pp.175179 
IT, ISEC, WBS 
20120302 17:00 
Kanagawa 

A Note on CyclicEquivalent Codewords for ConstantWeight Codes from Cyclic Difference Sets Takayasu Kaida (Kinki Univ.), Junru Zheng (Kyushu Women's Univ.) IT201184 ISEC2011111 WBS201185 
We proposed a method for constructing constantweight and multivalued code from the cyclic difference sets by generaliz... [more] 
IT201184 ISEC2011111 WBS201185 pp.237240 
IT 
20110930 11:10 
Tokyo 
Tokyo Institute of Technology 
Efficient Encoding for QuasiCyclic LDPC Codes with Rank Deficient Parity Check Matrices Haruka Obata, Hironori Uchikawa (Toshiba) IT201129 
This paper presents an efficient encoding method for quasicyclic lowdensity paritycheck (QCLDPC) codes with rank def... [more] 
IT201129 pp.3540 
IT 
20110520 15:25 
Osaka 
Osaka City University 
A Note on the Partition by Defining Set and the Weight Distributions for Cyclic Codes (Part 2) Takayasu Kaida (Kinki Univ.), Junru Zheng (Kyushu Women's Univ.) IT20117 
The partition of cyclic codes defined by the defining sets and
concept of a sequence of the defining set are induced.
... [more] 
IT20117 pp.3740 
ISEC, IT, WBS 
20110303 10:00 
Osaka 
Osaka University 
A Note on the Partition by Defining Set and the Weight Distributions for Cyclic Codes Takayasu Kaida (Kinki Univ.), Junru Zheng (Kyuhsu Women's Univ.) IT201078 ISEC201082 WBS201057 
The partition of cyclic codes defined by the defining sets and
concept of a sequence of the defining set are induced.
... [more] 
IT201078 ISEC201082 WBS201057 pp.6568 
IT 
20100521 14:35 
Tokushima 
the University of Tokushima 
A Note on Bounds of Minimum Distance and Decoding Methods for Cyclic Codes by DFT Matrix Takayasu Kaida (Kinki Univ.), Junru Zheng (Kyushu Women's Univ.) IT20106 
In this report, We give alternative proofs for the BCH boud, the HertmannTzeng bound and
the shift bound by the discre... [more] 
IT20106 pp.3134 
IT, ISEC, WBS 
20100305 11:15 
Nagano 
NaganoEngineering Campus, Shinshu University 
On Constant Weight Codes with Large Linear Complexity from Cyclic Difference Set Takayasu Kaida (Kinki Univ.) IT2009135 ISEC2009143 WBS2009114 
We propose a method for qary codes from the cyclic difference set
by generalization of the method in binary case by N... [more] 
IT2009135 ISEC2009143 WBS2009114 pp.409412 