JICCE (한국정보통신학회)
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| 한글제목(Korean Title) |
Modified BLUE Packet Buffer for Base-Stations in Mobile IP-based Networks |
| 영문제목(English Title) |
Modified BLUE Packet Buffer for Base-Stations in Mobile IP-based Networks |
| 저자(Author) |
Kyeong Hur
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| 원문수록처(Citation) |
VOL 09 NO. 05 PP. 0530 ~ 0538 (2011. 10) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Performance of TCP can be severely degraded in Mobile IP-based wireless networks where packet losses not related to network congestion occur frequently during inter-subnetwork handoffs by user mobility. To solve such a problem in the networks using Mobile IP, the packet buffering method at a base station(BS) recovers those packets dropped during handoff by forwarding the buffered packets at the old BS to the mobile users. But, when the mobile user moves to a congested BS in a new foreign subnetwork, those buffered packets forwarded by the old BS are dropped and TCP transmission performance of a mobile user degrades severely. In this paper, we propose a Modified BLUE(MBLUE) buffer required at a BS to increase TCP throughput in Mobile IP-based networks. When a queue length exceed a threshold and congestion grows, MBLUE increases its packet drop probability. But, when a TCP connection is added at new BS by a handoff, the old BS marks the buffered packets. And new BS receives the marked packets without dropping. Simulation results show that MBLUE buffer reduces congestion during handoffs and increases TCP throughputs.
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| 키워드(Keyword) |
TCP congestion control
Packet Buffering
Mobile IP
Buffer Management
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| 파일첨부 |
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