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Expecting a significant increase in number of mobile terminals to be managed together with a mobile data traffic boom in future heterogeneous networks, current centralized mobility management schemes may encounter scalability issues due to the creation of network bottlenecks and single point of failures. Recently, alternative approaches have been proposed to better distribute mobility management entities...
TCP-based applications account for a majority of data traffic in the Internet; thus, understanding and improving the performance of TCP over optical burst switching (OBS) network is critical. In this paper, we identify the ill effects of implementing TCP over a hybrid network (IP-access and OBS-core). We propose a Split-TCP framework for the hybrid IP-OBS network to improve TCP performance. We propose...
With the best-effort TCP transporting foreground traffic, below-best-effort transport protocols are developed to transport background traffic. However, we argue in this paper that: 1) two fixed levels of priority are not enough, and 2) the background and foreground transfers are subjective concepts which can only be decided by users but not arbitrarily determined by the network according to the application...
This paper shows the network-level view of the behaviour of two popular and deployed anonymity systems; Tor and JAP (AN.ON). The analysis uses the fact that both of them depend on TCP (transmission control protocol) and shows cases when network conditions may affect the systemspsila operations. The main topics are: on-off traffic, difference in available bandwidth between peers, and usage of the window...
Migration between different wireless access networks often involves disconnected period, which is caused by passing an area of bad wireless coverage and potential overhead to switch the network on the network interface to connect to. The disconnected period can cause extra transmission delay due to the timer-driven retransmission behavior in the transport protocols, such as TCP and SCTP. We propose...
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