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Using the application of bluck data transfer, we investigate the performance of QoS-satisfied pathover for transport layer mobility scheme such as mSCTP in FMIPv6 envirmonment. We find that existing scheme has some defects in aspect of pathover and throughput. Based on this, we make a potential change to mSCTP by adding QoS-Measurement-Chunk, which is used to take into account information about wireless...
The metro Ethernet network (MEN) expands the advantages of Ethernet to cover areas wider than LAN. Ethernet Services were created to provide multiple services to this carrier-grade network that is rapidly growing popularity in North America [21], Europe [22], and Asia [23]. Techniques to police the network layer for MENs are very mature; but the transport layer relies on different flavors of TCP that...
The future airborne network (AN) has to operate with lossy and intermittent data links, and other harsh technical challenges. However, current network protocols cannot perform well in AN, because they were originally developed for terrestrial-based Internet. Although some protocols were modified to adapt to space links, there is little research so far on reliable transmission mechanisms in AN environment...
High speed downlink packet access (HSDPA) is providing increased user data rate by introducing additional functionalities like link adaptation and coding, fast scheduling and hybrid automatic repeat request (HARQ) at the Node B. To achieve optimal radio resource utilization, HSDPA flow control is applied to control the amount of data sent from the radio network controller (RNC) to the Node B over...
The SVC (scalable video coding) extension to the recent video compression standard H.264/MPEG-4 AVC paves the way for video congestion control, by allowing flexible on-the-fly adjustments of the sending rate. We study the interaction between TFRC (TCP-friendly rate control) and application level rate control, and observe that TFRC requires relatively large router buffers to keep packet loss on acceptable...
With the advent of multimedia applications over wireless local area networks (WLANs), the IEEE 802.11e standard was proposed to incorporate quality of service (QoS) parameters in the medium access control (MAC) layer. It has been found through previous research work that the throughput of transport control protocol (TCP) is less when compared to that of User Datagram Protocol (UDP) in the IEEE 802...
Achievement of the QoS guarantee has come to be expected even in the wireless LAN communications. Because it is difficult to realize remodeling the MAC method of layer 2, we focus on the realization of per-flow QoS (throughput) using TCP control in layer 4. In the concrete, TCP-AV which has bandwidth reservation mechanism is used. A lot of paper has already been published about fairness of throughput...
Stream control transmission protocol (SCTP) is a new transport layer protocol, proposed by IETF in RFC 4960. In this paper we have done a simulation-based comparison of important quality of service parameter delay and the impact of packet loss on the throughput using SCTP and TCP Sack as a transport protocol in network simulator (ns-2) in wired network. Our result shows that SCTP and TCP Sack show...
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