Yohannes D. ALEMSEGED

Implementation and Performance Evaluation of a Distributed TV White Space Sensing System
Ha-Nguyen TRAN Yohannes D. ALEMSEGED Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/02/01
Vol. E97-B  No. 2  pp. 305-313
Type of Manuscript:  Special Section PAPER (Special Section on Technologies for Effective Utilization of Spectrum White Space)
Category: 
Keyword: 
distributed spectrum sensing, TV white space, implementation, system design, performance evaluation, 
 Summary | Full Text:PDF(2MB)
A Distributed Sensing and Caching Database for Cognitive Radio Systems
Ha-Nguyen TRAN Chen SUN Yohannes D. ALEMSEGED Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/01/01
Vol. E95-B  No. 1  pp. 217-225
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
regulatory database, sensing database, distributed sensing, cognitive radio, 
 Summary | Full Text:PDF(786.7KB)
Enhanced Media Access Scheme for Distributed Spectrum Sensing
Yohannes D. ALEMSEGED Chen SUN Ha NGUYEN TRAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3266-3273
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
distributed spectrum sensing, spectrum sensing, energy detection, media access control scheme, 
 Summary | Full Text:PDF(746.2KB)
Coexistence of Dynamic Spectrum Access Based Heterogeneous Networks
Chen SUN Yohannes D. ALEMSEGED HaNguyen TRAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3293-3301
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
heterogeneous networks, cognitive radio system (CRS), dynamic spectrum access (DSA), coexistence, architecture, hidden node, quality of coexistence (QoC), 
 Summary | Full Text:PDF(711.9KB)
Spectrum Sensing Architecture and Use Case Study: Distributed Sensing over Rayleigh Fading Channels
Chen SUN Yohannes D. ALEMSEGED Ha Nguyen TRAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3606-3615
Type of Manuscript:  Special Section PAPER (Special Section on Dynamic Spectrum Access)
Category: Spectrum Sensing
Keyword: 
spectrum sensing, cognitive radio, cooperative sensing, collaborative sensing, selective sensing, energy detection, Rayleigh fading, diversity, 
 Summary | Full Text:PDF(572.5KB)
Robust Spectrum Sensing Algorithms for Cognitive Radio Application by Using Distributed Sensors
Yohannes D. ALEMSEGED Chen SUN Ha Nguyen TRAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3616-3624
Type of Manuscript:  Special Section PAPER (Special Section on Dynamic Spectrum Access)
Category: Spectrum Sensing
Keyword: 
cognitive radio, spectrum sensor, distributed sensing, parallel sensing, cooperative sensing, gateway assisted sensing, two-stage detection, hard information combining (HC), soft information combining (SC), 
 Summary | Full Text:PDF(503KB)