Jung-Ryun LEE


Call Admission Controls in an IP-PBX Considering the End-to-End QoS of VoIP Calls with Silence Suppression
Ji-Young JUNG Jung-Ryun LEE 
Publication:   
Publication Date: 2017/02/01
Vol. E100-B  No. 2  pp. 280-292
Type of Manuscript:  PAPER
Category: Network System
Keyword: 
call admission control (CAC)silence suppressionR-factorBrady's modelend-to-end QoS
 Summary | Full Text:PDF(1.6MB)

Vertical Handover Strategy for Multi-Layered Real-Time Video Traffics
Hyun-Ho CHOI Hyunggon PARK Jung-Ryun LEE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/10/01
Vol. E97-D  No. 10  pp. 2802-2805
Type of Manuscript:  LETTER
Category: Information Network
Keyword: 
vertical handovermulti-layered trafficinter-frame dependency
 Summary | Full Text:PDF(601.8KB)

Bio-Inspired Time Synchronization Method for Multi-Hop Ad-Hoc Networks
Un-Ha KIM Yoon-Jae SHIN Jung-Ryun LEE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/08/01
Vol. E97-B  No. 8  pp. 1647-1655
Type of Manuscript:  PAPER
Category: Network
Keyword: 
bio-inspiredtime synchronizationmulti-hop ad-hoc networks
 Summary | Full Text:PDF(2.3MB)

Analysis of Energy-Delay Trade-Off for Power-Saving Mechanism Specific to Request-and-Response-Based Applications
Hyun-Ho CHOI Jung-Ryun LEE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/07/01
Vol. E97-B  No. 7  pp. 1422-1428
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
power-saving mechanismsleep modeenergy-delay trade-offperformance analysis
 Summary | Full Text:PDF(1.4MB)

A New Energy-Aware Source Routing Protocol for Maximization of Network Lifetime in MANET
Hyun-Ho CHOI Hyun-Gyu LEE Jung-Ryun LEE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/02/01
Vol. E97-D  No. 2  pp. 335-339
Type of Manuscript:  LETTER
Category: Information Network
Keyword: 
routing protocolenergy-aware routinglifetime maximizationad hoc network
 Summary | Full Text:PDF(562.3KB)

A Paging Indicator Transmission Technique for Mobile WiMAX Systems
Yeong-Jun KIM Hyun-Il YOO Kyung-Soo WOO Jung-Ryun LEE Heesoo LEE Yong-Soo CHO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/07/01
Vol. E92-B  No. 7  pp. 2542-2545
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
power savingpaging indicatorOFDMmobile WiMAXpreamble
 Summary | Full Text:PDF(186.1KB)

Performance Evaluation of Data Link Protocol with Adaptive Frame Length in Satellite Networks
Eung-In KIM Jung-Ryun LEE Dong-Ho CHO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/06/01
Vol. E87-B  No. 6  pp. 1730-1736
Type of Manuscript:  LETTER
Category: Satellite and Space Communications
Keyword: 
data link protocoladaptive frame lengthsatellite channelARQMarkov model
 Summary | Full Text:PDF(593.1KB)