NDLI: A Fast Adaptation Scheme for TFRC over Vertical Handovers

Content Provider	IEEE Xplore Digital Library
Author	Dagang Li Wenpeng Sha
Copyright Year	2013
Description	Author affiliation: Shenzhen Grad. Sch., Peking Univ., Shenzhen, China (Dagang Li) \|\| Sch. of Electron. & Comput. Eng., Peking Univ., Shenzhen, China (Wenpeng Sha)
Abstract	The next generation of mobile communication systems will be an integration of complementary wired and wireless network technologies. A mobile user equipped with multiple interfaces that support different technologies should be able to switch between them when needed without losing its connection to the system. This is called a vertical handover. A vertical handover may cause abrupt changes in the throughput and delay experienced by the mobile user because of the differences in the characteristics and conditions on the old and new networks. This is an issue for all rate/congestion control mechanisms, especially slow responsive ones such as TFRC. TFRC was designed for a smooth transmission rate, therefore it can not follow closely the sudden change in the available bandwidth. Significant change in the end-to-end delay may also cause false no feedback timeout or packet reordering and affect the sending rate calculation. In this paper we propose a fast adaptation mechanism that tries to solve all these problems in a systematic and unified way. We show that our mechanism can greatly reduce the adaptation time and packet loss during TFRC vertical handover between any technologies, while preserving the original TFRC behavior otherwise. It is also designed to be robust in a lossy environment, in case of bad wireless link quality or network congestion.
Starting Page	234
Ending Page	241
File Size	521283
Page Count	8
File Format	PDF
e-ISBN	9781479925100
DOI	10.1109/NBiS.2013.35
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-04
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	TFRC Bandwidth Receivers Handover Mobility Mobile communication Loss measurement Congestion control Manganese
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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