Tsukasa IWAMA


The Feasibility Study of the Dynamic Zone Configuration Technique with a Developed Circular Array Antenna
Ami KANAZAWA Hiroshi HARADA Tsukasa IWAMA Yoshihiro HASE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/07/25
Vol. E82-A  No. 7  pp. 1210-1222
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
dynamic zone configurationdynamic channel assignmentarray antennaeffective utilization of the radio spectrum
 Summary | Full Text:PDF(1.9MB)

An Active Different-Sized Cell Combination Method (ADCC) for Street Microcellular Systems
Tsukasa IWAMA Hideki OKIMOTO Ami KANAZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/07/25
Vol. E82-A  No. 7  pp. 1223-1229
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
street microcellular systempropagation control methodactive different-sized cell combination method (ADCC)
 Summary | Full Text:PDF(765.6KB)

Performance Study of Channel Reservation for Ahead Cells in Street Micro-Cellular Systems
Ami KANAZAWA Chikara OHTA Yoshikuni ONOZATO Tsukasa IWAMA Shigetoshi YOSHIMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/07/25
Vol. E79-A  No. 7  pp. 990-996
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Informatin Network)
Category: 
Keyword: 
channel reservationdynamic channel assignmentstreet micro-cellular systemchannel changingsforced call termination rate
 Summary | Full Text:PDF(632.4KB)

Overlapping Coverage Control in Sector Cells
Fujio WATANABE Theodore BUOT Tsukasa IWAMA Mitsuhiko MIZUNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/03/25
Vol. E79-B  No. 3  pp. 368-372
Type of Manuscript:  Special Section LETTER (Special Issue on Advanced Adaptive Radio Communication Technologies)
Category: 
Keyword: 
overlapping areatruking efficiencyLoad Sharing sector cellsDirected Retry sector cells
 Summary | Full Text:PDF(377.8KB)