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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| IT | 2012-07-19 15:05 |
Aichi | Toyota Technological Institute | Modification of Gold sequences for Optical CDM Satoru Aoyama, Shogo Usami (Meijo Univ.)  IT2012-12 |
One of multiplexing scheme for optical communication is Optical Code Division Multiplexing (O-CDM). In O-CDM, there a... [more] |
IT2012-12 pp.19-23 |
| NLP | 2011-05-26 14:15 |
Kagawa | Olive park olive memorial hall | An Analysis of a High-Order Delay-Locked Loop in the Presence of White Channel Noise and Nonwhite Multiple Access Interference Keisuke Nagata, Hisato Fujisaka, Takeshi Kamio, Kazuhisa Haeiwa (Hiroshima City Univ.) NLP2011-4 |
This manuscript reports a procedure and results of probabilistic analysis of non-coherent delay-locked loop (NC-DLL) use... [more] | NLP2011-4 pp.15-20 |
| ISEC, IT, WBS | 2011-03-04 11:15 |
Osaka | Osaka University | Performance evaluation of MC-CDMA system which permits time and frequency offsets Tatsuma Kuwazaki, Tohru Kohda, Yutaka Jitsumatsu (Kyushu Univ.) IT2010-109 ISEC2010-113 WBS2010-88 |
In code division multiple access (CDMA) systems, spreading code is introduced as the third axis in addition to the time... [more] |
IT2010-109 ISEC2010-113 WBS2010-88 pp.271-276 |
| NS, RCS (Joint) |
2010-12-17 13:40 |
Okayama | Okayama Univ. | Investigations on Channel-Dependent Adaptive Spreading Code Selection in Downlink MC-CDMA with MMSE-SIC Receiver Akira Wakamiya, Shota Yoshimura, Kenichi Higuchi (Tokyo Univ. of Science) RCS2010-191 |
This paper investigates the received signal-to-noise and interference power ratio (SINR) of the proposed channel-depende... [more] | RCS2010-191 pp.191-196 |
| NLP | 2010-12-13 11:00 |
Tottori | Yonago Convention Center | An All-Coupled Probabilistic Network Model of Delay-Locked Loops Keisuke Nagata, Hisato Fujisaka, Takeshi Kamio, Kazuhisa Haeiwa (Hiroshima City Univ.) NLP2010-115 |
In this paper, we build a probabilistic 2J+1-site network which is a model of a delay-locked loop (DLL) in a CDMA commun... [more] | NLP2010-115 pp.21-26 |
| RCS | 2010-06-18 13:00 |
Kyoto | Kyoto Univ. | Investigation on Channel-Dependent Adaptive Spreading Code Selection in Downlink MC-CDMA Shota Yoshimura, Kenichi Higuchi (Tokyo Univ. of Science) RCS2010-39 |
This paper investigates a channel-dependent adaptive spreading code matrix selection in downlink multicarrier code divis... [more] | RCS2010-39 pp.127-132 |
| IT, ISEC, WBS | 2010-03-04 15:25 |
Nagano | Nagano-Engineering Campus, Shinshu University | [Invited Talk]
Codes with unique correlation property and their application Tomoko K. Matsushima, Yasuaki Teramachi (Polytechnic Univ.) IT2009-98 ISEC2009-106 WBS2009-77 |
In this paper, a generalized class of Modified Prime Sequence Code (MPSC), which is one of the signature codes for synch... [more] | IT2009-98 ISEC2009-106 WBS2009-77 pp.175-180 |
| RCS, SIP | 2010-01-22 14:30 |
Fukuoka | Kyushu Univ. | Performance Comparison of MLD and MMSE-based Linear Filtering Assuming Spreading Code Sequences Appropriate for MLD in MC-CDMA Akira Wakamiya, Kenichi Higuchi (Tokyo Univ. of Science) SIP2009-111 RCS2009-245 |
This paper investigates the performance comparison between the maximum likelihood detection (MLD) and minimum mean squar... [more] | SIP2009-111 RCS2009-245 pp.223-228 |
| RCS | 2009-08-04 16:25 |
Miyagi | Tohoku Univ. | Performance Evaluation of Spreading Code Sequence Appropriate for Maximum Likelihood Detection in MC-CDMA with Channel Coding Akira Wakamiya, Kenichi Higuchi (Tokyo Univ. of Sci.) RCS2009-107 |
This paper investigates the spreading code sequences appropriate for the multicarrier code division multiple access (MC-... [more] | RCS2009-107 pp.171-176 |
| RCS | 2009-06-26 13:40 |
Aichi | Nagoya University | Spreading Code Sequences Appropriate for Maximum Likelihood Detection in MC-CDMA Akira Wakamiya, Kenichi Higuchi (Tokyo Univ. of Sci.) RCS2009-48 |
This paper investigates the spreading code sequences appropriate for the multicarrier code division multiple access (MC-... [more] | RCS2009-48 pp.113-118 |
| NLP | 2009-03-11 15:55 |
Kyoto | A Steady-State Analysis of 2-Delta Delay-Locked Loop by Discrete-Time Piecewise Linear Modeling Yuji Ohba, Keisuke Nagata, Hisato Fujisaka, Takeshi Kamio, Chang-Jun Ahn, Kazuhisa Haeiwa (Hiroshima City Univ.) NLP2008-169 |
This paper discribes an analysis of a 2-$\delta$ delay locked loop that is used for the synchronization of a local Mark... [more] | NLP2008-169 pp.105-109 |
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| WBS, IT, ISEC | 2009-03-09 09:00 |
Hokkaido | Hakodate Mirai Univ. | Spectrum spreading sequences generated by chaotic dynamics and its correlational properties Tohru Kohda, Takao Une, Yuichiro Koura (Kyushu Univ.) IT2008-57 ISEC2008-115 WBS2008-70 |
The performance of code division multiple access (CDMA) system largely depends on the SS codes. Many methods of genera... [more] |
IT2008-57 ISEC2008-115 WBS2008-70 pp.85-90 |
| WBS, IT, ISEC | 2009-03-09 09:25 |
Hokkaido | Hakodate Mirai Univ. | Markovian Coded Gaussian Filter with its application to Filterbanks Tohru Kohda, Yutaka Jitsumatsu, Tatsuma Kuwazaki, Kenjiro Fujino (Kyushu Univ.) IT2008-58 ISEC2008-116 WBS2008-71 |
In code division multiple access (CDMA) systems, spreading code is introduced as the third axis in addition to the time ... [more] | IT2008-58 ISEC2008-116 WBS2008-71 pp.91-98 |
| RCS, SAT (Joint) |
2008-12-19 13:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Design of Orthogonal Spreading Code Groups for MC-CDMA with FDE in A Frequency Selective Channel Koichi Adachi, Masao Nakagawa (Keio Univ.) RCS2008-171 |
The bit error rate (BER) performance of multicode MC-CDMA severly degrades due to the inter-code interference (ICI) in a... [more] | RCS2008-171 pp.121-126 |
| NLP | 2008-12-10 10:10 |
Ishikawa | Performance evaluation of complex chaotic spreading sequence with constant power Ryo Takahashi (RIKEN), Etsushi Nameda, Ken Umeno (ChaosWare Inc.) NLP2008-81 |
A performance of the complex chaotic spreading sequences with constant power in a chip-synchronous CDMA using a complex ... [more] | NLP2008-81 pp.59-62 |
|
| NLP | 2008-08-01 10:25 |
Kochi | A Statistical Analysis of Delay-Locked Loops in Asynchronous CDMA Communication Keisuke Nagata, Hisato Fujisaka, Takeshi Kamio, Chang-Jun Ahn, Kazuhisa Haeiwa (Hiroshima City Univ.) NLP2008-34 |
This manuscript reports a procedure and results of probabilistic analysis of delay-locked loops used in asynchronous DS/... [more] | NLP2008-34 pp.7-12 |
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| SIP, WBS | 2008-07-25 13:25 |
Hiroshima | Hiroshima Univ. | Statistical-Mechanics-Based Approach to Joint Channel Estimation and Multiuser Detection in DS-CDMA Channels Keigo Takeuchi (Kyoto Univ.), Mikko Vehkaperae (NTNU), Toshiyuki Tanaka (Kyoto Univ.), Ralf R. Mueller (NTNU) SIP2008-84 WBS2008-22 |
We consider multiuser detection in a randomly-spread frequency-selective block-fading DS-CDMA channel with imperfect CSI... [more] | SIP2008-84 WBS2008-22 pp.43-48 |
| IT | 2008-07-25 09:30 |
Chiba | University of Tokyo, Kashiwa Campus | On Some Properties of Complete Complementary Codes Yi Jin, Hiroki Koga (Tsukuba Univ.) IT2008-16 |
An $(M,N,L)$--complete complementary code, which contains $M$ sets of $N$ sequences of length $L$, can be considered as ... [more] | IT2008-16 pp.1-6 |
| NLP | 2008-03-28 15:45 |
Hyogo | A Stochastic Method for the Analysis of Delay-Locked Loops in Quasi-Synchronous CDMA Communication Keisuke Nagata, Hisato Fujisaka, Takeshi Kamio, Chang-Jun Ahn, Kazuhisa Haeiwa (Hiroshima City Univ.) NLP2007-178 |
This manuscript reports a procedure and results of probabilistic analysis of delay-locked loops used in quasi-synchrono... [more] |
NLP2007-178 pp.67-72 |
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| ISEC, IT, WBS | 2008-02-29 10:45 |
Tokyo | Investigation on Suitable Code Parameters for Wavelength-Hopping Time-Spreading Optical CDMA Systems Using Generalized MPSCs and Optical Orthogonal Codes Tomoko K. Matsushima (Polytechnic Univ.), Noboru Ochiai (Ibaraki Pref. Academy of Industrial Tech.), Takeshi Nagao (Sansou Systems), Yasuaki Teramachi (Polytechnic Univ.) IT2007-64 ISEC2007-161 WBS2007-95 |
There are only two free parameters such as length and weight of time-spreading codes to compose codes for two dimensiona... [more] | IT2007-64 ISEC2007-161 WBS2007-95 pp.101-108 |
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