Hisashi TAMAKI


Utility-Based Distributed Association Control Scheme with User Guidance for IEEE802.11 Wireless LANs
Takahiro IWAMI Irda ROSLAN Yumi TAKAKI Kyoko YAMORI Chikara OHTA Hisashi TAMAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/08/01
Vol. E98-B  No. 8  pp. 1700-1714
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
IEEE802.11throughput estimationassociation controlhandoveruser guidanceuser utility
 Summary | Full Text:PDF(2MB)

Fair Partitioning of the Downlink Resources of an OFDMA-Based Multi-User Multi-Tier Cellular Network Using Fractional Frequency Reuse
Akindele Segun AFOLABI Erdenebileg MUNKHBAT Yumi TAKAKI Chikara OHTA Hisashi TAMAKI Yoshizo TANAKA Takashi YAMAMOTO Yoji OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/10/01
Vol. E95-B  No. 10  pp. 3353-3357
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
resource partitioningOFDMAFFRmacrocellfemtocell
 Summary | Full Text:PDF(440.9KB)

Scheduling Algorithm to Provide QoS over a Shared Wireless Link
Augusto FORONDA Chikara OHTA Hisashi TAMAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/06/01
Vol. E92-B  No. 6  pp. 2160-2167
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
wireless networkmodified largest weighted delay first (M-LWDF)proportional fair (PF)effective bandwidth
 Summary | Full Text:PDF(810.5KB)

Scheduling Algorithms for Maximizing Throughput with Zero-Forcing Beamforming in a MIMO Wireless System
Augusto FORONDA Chikara OHTA Hisashi TAMAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/06/01
Vol. E91-B  No. 6  pp. 1952-1961
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
wireless networkmultiple-input/multiple-output (MIMO)zero-forcing beamforming (ZFBF)multiuser diversity
 Summary | Full Text:PDF(618.7KB)

Dermoscopic Image Segmentation by a Self-Organizing Map and Fuzzy Genetic Clustering
Harald GALDA Hajime MURAO Hisashi TAMAKI Shinzo KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2004/09/01
Vol. E87-D  No. 9  pp. 2195-2203
Type of Manuscript:  PAPER
Category: Image Processing and Video Processing
Keyword: 
medical image processingcolor image segmentationself-organizing mapsgenetic algorithmscluster validity
 Summary | Full Text:PDF(404.1KB)