31 research outputs found
Synthetic studies on lasonolide A and analogues
Thesis (master`s)--서울대학교 대학원 :화학부 유기화학 전공,2003.Maste
Study on disease experience and moral meaning construction of AIDS in modern South Korea
학위논문 (석사)-- 서울대학교 대학원 : 인류학과 인류학전공, 2011.8. 박순영.Maste
이더넷 수동형 광가입자망에서의 QoS 보장을 위한 동적 대역폭 할당
학위논문(석사) - 한국과학기술원 : 전기및전자공학전공, 2004.8, [ vii, 62 p. ]Ethernet-based passive optical network (EPON) technology is being considered as a promising solution for next-generation broadband access network. It must have the property of high efficiency, low cost, and support quality of service (QoS). A major feature for this new architecture is the use of a shared transmission media between all connected optical network unit (ONU). Hence, medium access control (MAC) arbitration mechanisms are essential for the successful implementation of EPON.
In this thesis, we propose the several dynamic bandwidth allocation (DBA) algorithms that improve the network``s performance and support IP-based multimedia applications with quality of service requirement. In addition, we introduce analytic models of proposed algorithms and prove the system based on our algorithm to be asymptotically stable. Simulation results show the proposed bandwidth algorithms provide high bandwidth efficiency and low queueing delay of ONU in EPON. Simulation results also show ONU have lower packet delay and jitter for high priority traffics than other conventional allocation algorithms by the proposed dynamic bandwidth allocation algorithms.한국과학기술원 : 전기및전자공학전공
