Keyword : convex optimization


Toward Large-Pixel Number High-Speed Imaging Exploiting Time and Space Sparsity
Naoki NOGAMI Akira HIRABAYASHI Takashi IJIRI Jeremy WHITE 
Publication:   
Publication Date: 2017/06/01
Vol. E100-A  No. 6 ; pp. 1279-1285
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
high-speed camerasparsitycompressed sensingimage completionconvex optimization
 Summary | Full Text:PDF(1.9MB)

Stochastic Dykstra Algorithms for Distance Metric Learning with Covariance Descriptors
Tomoki MATSUZAWA Eisuke ITO Raissa RELATOR Jun SESE Tsuyoshi KATO 
Publication:   
Publication Date: 2017/04/01
Vol. E100-D  No. 4 ; pp. 849-856
Type of Manuscript:  PAPER
Category: Pattern Recognition
Keyword: 
covariance descriptormetric learningconvex optimizationstochastic optimizationDykstra algorithm
 Summary | Full Text:PDF(554.3KB)

Weight Optimization for Multiple Image Integration and Its Applications
Ryo MATSUOKA Tomohiro YAMAUCHI Tatsuya BABA Masahiro OKUDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/01/01
Vol. E99-D  No. 1 ; pp. 228-235
Type of Manuscript:  PAPER
Category: Image Processing and Video Processing
Keyword: 
denoisingconvex optimizationhigh dynamic range imagessuper-resolution
 Summary | Full Text:PDF(1.7MB)

Decentralized Multilevel Power Allocation for Random Access
Huifa LIN Koji ISHIBASHI Won-Yong SHIN Takeo FUJII 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/10/01
Vol. E98-B  No. 10 ; pp. 1978-1987
Type of Manuscript:  Special Section PAPER (Special Section on 5G Radio Access Networks―Part II: Multi-RAT Heterogeneous Networks and Smart Radio Technologies)
Category: 
Keyword: 
random accessdecentralized power allocationconvex optimizationmultipacket reception (MPR)successive interference cancellation (SIC)machine-to-machine (M2M) communications
 Summary | Full Text:PDF(1.5MB)

Robust Segmentation of Highly Dynamic Scene with Missing Data
Yinhui ZHANG Zifen HE Changyu LIU 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/01/01
Vol. E98-D  No. 1 ; pp. 201-205
Type of Manuscript:  LETTER
Category: Pattern Recognition
Keyword: 
image sequence segmentationconvex optimizationtotal variationconditional random field
 Summary | Full Text:PDF(2.6MB)

Adaptive Band Activity Ratio Control with Cascaded Energy Allocation for Amplify-and-Forward OFDM Relay Systems
Quang Thang DUONG Shinsuke IBI Seiichi SAMPEI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/11/01
Vol. E97-B  No. 11 ; pp. 2424-2434
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
dynamic spectrum controlspectral efficiencyamplify-and-forwardtransmit energy constraintOFDMenergy allocationconvex optimizationDCMC capacityCCMC capacity
 Summary | Full Text:PDF(1.5MB)

Optimal Sensing Time and Power Allocation in Dynamic Primary-User Traffic Model Based Cognitive Radio Networks
Errong PEI Bin SHEN Fang CHENG Xiaorong JING 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/01/01
Vol. E97-B  No. 1 ; pp. 196-203
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
cognitive radiospectrum sensingpower allocationconvex optimizationsecondary throughput
 Summary | Full Text:PDF(1.3MB)

An Efficient Relay Placement Method with Power Allocation for MIMO Two-Way Multi-Hop Networks
Gia Khanh TRAN Rindranirina RAMAMONJISON Kei SAKAGUCHI Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/05/01
Vol. E96-B  No. 5 ; pp. 1176-1186
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
multi-hoptwo-way relaynode placementpower allocationgeometric programmingconvex optimizationMIMOinterference cancellationSINR balancingQoS constrained optimization
 Summary | Full Text:PDF(2.1MB)

Utility Based Cross-Layer Resource Allocation in Multiuser OFDM-Based Cognitive Radio Systems
Errong PEI Xiaorong JING Fang CHENG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/02/01
Vol. E96-B  No. 2 ; pp. 677-680
Type of Manuscript:  LETTER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
cognitive radiomultiuser OFDMutility functionconvex optimizationresource allocation
 Summary | Full Text:PDF(251.5KB)

Image Recovery by Decomposition with Component-Wise Regularization
Shunsuke ONO Takamichi MIYATA Isao YAMADA Katsunori YAMAOKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/12/01
Vol. E95-A  No. 12 ; pp. 2470-2478
Type of Manuscript:  PAPER
Category: Image
Keyword: 
image recoverydecompositionregularizationsparsityconvex optimizationalternating direction method of multipliers (ADMM)
 Summary | Full Text:PDF(1.9MB)

Training Symbol Design for Channel Estimation and IQ Imbalance Compensation in OFDM Systems
Emmanuel MANASSEH Shuichi OHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/11/01
Vol. E95-A  No. 11 ; pp. 1963-1970
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: Communication Theory and Signals
Keyword: 
OFDMI/Q imbalanceMIMOMSECE optimizationtraining symbolconvex optimization
 Summary | Full Text:PDF(783.5KB)

Multi-Antenna Secure Communications via Selective Diversity
Ling TANG Hao CHEN Jianhui WU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/02/01
Vol. E95-B  No. 2 ; pp. 587-590
Type of Manuscript:  LETTER
Category: Fundamental Theories for Communications
Keyword: 
physical layer securitymulti-antennaselective diversityconvex optimization
 Summary | Full Text:PDF(249.3KB)

Distributed Estimation for Vector Signal in Linear Coherent Sensor Networks
Chien-Hsien WU Ching-An LIN 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/02/01
Vol. E95-B  No. 2 ; pp. 460-465
Type of Manuscript:  PAPER
Category: Network
Keyword: 
distributed estimationconvex optimizationpower allocationwireless sensor network
 Summary | Full Text:PDF(485.4KB)

Sum Rate Optimization in Multiuser Cognitive Radio Networks
Fanggang WANG Bo AI Zhangdui ZHONG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12 ; pp. 3505-3514
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cognitive radionetwork sum ratebeamformingpower controlconvex optimizationrobust algorithm
 Summary | Full Text:PDF(429.1KB)

Distributed Cooperative Multicell Beamforming Based on a Viewpoint of Layered Channel
Jiamin LI Dongming WANG Pengcheng ZHU Lan TANG Xiaohu YOU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12 ; pp. 3225-3231
Type of Manuscript:  Special Section PAPER (Special Section on Cooperative Communications for Cellular Networks)
Category: 
Keyword: 
cooperative multicell beamformingdistributed iterative beamforming algorithmconvex optimizationvirtual SINR
 Summary | Full Text:PDF(691.5KB)

Optimal Beamforming in Two-Way Relay Networks with Cognitive Radio Capabilities
Ardalan ALIZADEH Seyed Mohammad-Sajad SADOUGH 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/11/01
Vol. E94-B  No. 11 ; pp. 3089-3097
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cognitive radiotwo-way relayingcooperative networkscooperative spectrum sensingbeamformingconvex optimization
 Summary | Full Text:PDF(648.5KB)

An Efficient Transmit Power and Bit Rate Allocation Algorithm for OFDM Based Cognitive Radio Systems
Yuehuai MA Youyun XU Jin-Long WANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/01/01
Vol. E94-B  No. 1 ; pp. 302-306
Type of Manuscript:  LETTER
Category: Network
Keyword: 
cognitive radioOFDMtransmit power and bit rate allocationconvex optimization
 Summary | Full Text:PDF(321.7KB)

Exploiting Only Channel Spatial Correlations for Optimal Power-Saving Input Covariance in MIMO-Based Wireless Systems
Jung-Chieh CHEN Chao-Kai WEN 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/12/01
Vol. E90-B  No. 12 ; pp. 3505-3513
Type of Manuscript:  PAPER
Category: Fundamental Theories for Communications
Keyword: 
capacitychannel state informationconvex optimizationlarge systemMIMOpower minimizationspatial correlation
 Summary | Full Text:PDF(290.1KB)

Performance Analysis of MIMO Systems in Spatially Correlated Fading Using Matrix-Monotone Functions
Eduard A. JORSWIECK Holger BOCHE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/05/01
Vol. E89-A  No. 5 ; pp. 1454-1472
Type of Manuscript:  PAPER
Category: Information Theory
Keyword: 
average mutual informationminimum mean-square errormultiple antenna systemoptimal transmit strategiesmatrix-monotone functionsconvex optimizationspatial correlation
 Summary | Full Text:PDF(604.6KB)