Congestion control for UDP/TCP flow in single-hop and multi-hop wireless networks무선 단일도약 망 및 다중도약 망에서 UDP와 TCP 플로우를 위한 혼잡 제어

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 483
  • Download : 0
DC FieldValueLanguage
dc.contributor.advisorLim, Jong-Tae-
dc.contributor.advisor임종태-
dc.contributor.authorLee, Ho-Jin-
dc.contributor.author이호진-
dc.date.accessioned2011-12-14-
dc.date.available2011-12-14-
dc.date.issued2009-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=327764&flag=dissertation-
dc.identifier.urihttp://hdl.handle.net/10203/35531-
dc.description학위논문(박사) - 한국과학기술원 : 전기및전자공학전공, 2009. 8., [ x, 104 ]-
dc.description.abstractCongestion occurs when the amount of incoming packets excess the network resources such as the buffer space and the network bandwidth. Once it happens, the elapsed time that a packet is successfully delivered to a destination increases substantially in networks. Moreover, the throughput decreases due to the increase of delay and the retransmission of the lost packets. To avoid network congestion, the suitable congestion control algorithm for the various network environment should be devised. The main purpose of the congestion control algorithm is to utilize the network bandwidth highly with allocating the network bandwidth fairly to flows. In this dissertation, we study on congestion control in two types of networks: single-hop wireless networks and multi-hop wireless networks. In addition, we also consider two types of flows: TCP flows and non-TCP flows for streaming applications. Lastly, we study the cross-layer approach for the power efficiency. Considering the characteristics of networks and flows, we propose congestion control algorithms as follows: First, we consider a congestion control algorithm over single-hop wireless cellular networks. The conventional TCP treats a packet loss as the incipiency of congestion. However, the wireless networks experience the packet loss due to wireless link error frequently. Then, even though congestion does not occur, a source unnecessarily reduces its transmission rate to avoid congestion and implements the retransmission. This causes the network performance to degrade significantly: low link utilization and severe unfairness. To solve this problem, for streaming realtime applications, which are mostly based on UDP, we propose TCP-friendly congestion control algorithm based on ECN messages. Through the ECN mechanism, we derive the congestion state irrespective of the wireless packet loss. Moreover, using TCP additive increase multiplicative decrease (AIMD) dynamic behavior on the average sense to set the transmis...eng
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjectcongestion control-
dc.subjectwireless networks-
dc.subjectsingle-hop-
dc.subjectmulti-hop-
dc.subject혼잡 제어-
dc.subject무선망-
dc.subject단일 도약 망-
dc.subject다중 도약 망-
dc.subjectcongestion control-
dc.subjectwireless networks-
dc.subjectsingle-hop-
dc.subjectmulti-hop-
dc.subject혼잡 제어-
dc.subject무선망-
dc.subject단일 도약 망-
dc.subject다중 도약 망-
dc.titleCongestion control for UDP/TCP flow in single-hop and multi-hop wireless networks-
dc.title.alternative무선 단일도약 망 및 다중도약 망에서 UDP와 TCP 플로우를 위한 혼잡 제어-
dc.typeThesis(Ph.D)-
dc.identifier.CNRN327764/325007 -
dc.description.department한국과학기술원 : 전기및전자공학전공, -
dc.identifier.uid020055124-
dc.contributor.localauthorLim, Jong-Tae-
dc.contributor.localauthor임종태-
Appears in Collection
EE-Theses_Ph.D.(박사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0