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This paper presents a practical solution to a typical datacenter problem which may deteriorate network efficiency in a many to one transmission session, which is called the TCP Incast problem. In Incast, the completion time of the whole session depends on the last finishing flow. To address such problem, we propose an adaptation mechanism which always selects sufficient leading flows to slow down...
TCP Incast is one of the typical datacenter problems that may affect network efficiency in a many to one transmission session, in which the completion time of the whole session depends on the last finishing flow. In this paper a session-aware mechanism is proposed that intelligently chooses only the leading flows to slow down at the presence of congestion, so the lagging ones will have a higher chance...
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...
TCP-friendly rate control (TFRC) is a congestion control mechanism that can compete fairly with TCP while maintaining a much smoother transmission rate. The smoothness is achieved at the cost of responsiveness, which makes it slow to settle down when handed-over to a different network. In this paper we will study how to improve the TFRC performance when the available bandwidth is changed during a...
In this paper we propose a vertical handover mechanism for TCP to deal with the delay and bandwidth change during the handover. The proposed mechanism relies on the interaction between the sender and the receiver during the handover and requires no a prior information of the new path. The adaptation is triggered by a handover notification at the receiver and finishes in about two round-trip time....
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