Keyword : semidefinite relaxation


Randomization Approaches for Reducing PAPR with Partial Transmit Sequence and Semidefinite Relaxation
Hirofumi TSUDA Ken UMENO 
Publication:   
Publication Date: 2021/03/01
Vol. E104-B  No. 3 ; pp. 262-276
Type of Manuscript:  PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
orthogonal frequency division multiplexing (OFDM)peak-to-average power ratio (PAPR)partial transmit sequencesemidefinite relaxationrandomization algorithm
 Summary | Full Text:PDF(1.3MB)

Robust Secure Transmit Design for SWIPT System with Many Types of Wireless Users and Passive Eavesdropper
Pham-Viet TUAN Insoo KOO 
Publication:   
Publication Date: 2018/02/01
Vol. E101-B  No. 2 ; pp. 441-450
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2016)
Category: Wireless Communication Technologies
Keyword: 
simultaneous wireless information and power transfer (SWIPT)passive eavesdroppermultiuser multiple-input single-output (MISO)semidefinite relaxationGaussian randomization
 Summary | Full Text:PDF(877.6KB)

Low Complexity Cooperative Transmission Design and Optimization for Physical Layer Security of AF Relay Networks
Chao WANG Hui-Ming WANG Weile ZHANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/06/01
Vol. E97-B  No. 6 ; pp. 1113-1120
Type of Manuscript:  PAPER
Category: Fundamental Theories for Communications
Keyword: 
physical layer securitysecrecy rate maximizationinner convex approximationsemidefinite relaxation
 Summary | Full Text:PDF(978.4KB)

A Semidefinite Relaxation Approach to Spreading Sequence Estimation for DS-SS Signals
Hua Guo ZHANG Qing MOU Hong Shu LIAO Ping WEI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/11/01
Vol. E94-B  No. 11 ; pp. 3163-3167
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
direct sequence spread spectrum signalsemidefinite relaxationmaximum likelihood estimatespreading sequence estimation
 Summary | Full Text:PDF(374.6KB)