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A Control Theoretical Approach to a Window-Based Flow Control Mechanism With Explicit Congestion Notification
White Papers A window-based flow control mechanism is a sort of feedback-based congestion control mechanisms, and has been widely used in current TCP/IP networks. This paper focuses on a window-based flow control mechanism based on a congestion avoidance...
[December 6, 2007, 0:01]
Improving TCP Startup Performance Using Active Measurements: Algorithm and Evaluation
White Papers TCP Slow Start exponentially increases the congestion window size to detect the proper congestion window for a network path. This often results in significant packet loss, while breaking off Slow Start using a limited slow start threshold may lead...
[October 31, 2007, 0:00]
SCTP and TCP Variants: Congestion Control Under Multiple Losses
White Papers Inefficiency in the current specification of SCTP's congestion control is characterized, which degrades performance when there are multiple packet losses in a single window. First, a Fast Recovery mechanism, similar to that of New-Reno TCP, is...
[December 6, 2007, 0:01]
A Burstiness Control for High Speed Long Distance TCP
White Papers This has stimulated intensive research on improving TCP congestion control algorithm in order to sustain large congestion window and high throughput. Most of these works however focus almost exclusively on window control algorithm that controls the...
[October 31, 2007, 0:00]
Modified TCP Congestion Control Algorithm for Throughput Enhancement in Wired-Cum-Wireless Networks
White Papers The key idea proposed in this paper is to determine the Optimal Congestion Window for a TCP Sender in a particular network scenario (that corresponds to the fair share of that connection) and keep this congestion window a constant to a point where...
[November 7, 2007, 0:00]
Congestion Control: SCTP Vs TCP
White Papers This paper characterizes an inefficiency in the current speciation of SCTP's congestion control, which degrades performance (more than necessary to be 'TCP-friendly') when there are multiple packet losses in a single window.
[December 20, 2007, 0:01]
Sender Side Intelligence for TCP Throughput Enhancement in Wired-Cum-Wireless Network
White Papers The key idea to determine the Optimal Congestion Window for a TCP Sender, in a particular network scenario (that corresponds to the fair share of that connection) and keep this congestion window a constant to a point where the fair share in the...
[October 31, 2007, 0:00]
On TCP Aware Uplink Scheduling in WiMAX Networks
White Papers The first proposed scheduling algorithm uses TCP Congestion Window (cwnd) size, whereas the second one uses cwnd size and TCP timeouts to allocate time slots among the contending TCP flows. The paper also proposes a method to compute an optimal...
[April 22, 2009, 1:24]
A Window-Based Flow Control Mechanism Based on TCP Vegas With Explicit Congestion Notification
White Papers A window-based flow control mechanism is a sort of feedback-based congestion control mechanisms, and has been widely used in TCP/IP networks. This paper focuses on a window-based flow control mechanism based on a congestion avoidance mechanism of...
[December 6, 2007, 0:01]
Smartacking: Improving TCP Performance From the Receiving End
White Papers When the bottleneck link is at its capacity, the smartacking receiver sends ACKs with a lower frequency reducing the control traffic overhead and slowing down the congestion window growth to utilize the network capacity more effectively.
[December 20, 2007, 0:01]
Improving TCP Congestion Control Over Internets With Heterogeneous Transmission Media
White Papers The new congestion-control and error-recovery mechanisms in TCP Santa Cruz are based on: using estimates of delay along the forward path, rather than the round-trip delay; reaching a target operating point for the number of packets in the...
[December 27, 2007, 0:01]
TCP-Adaptive Reno for Improving Efficiency-Friendliness Tradeoffs of TCP Congestion Control Algorithm
White Papers It increases congestion window faster and decreases the window less significantly than TCP-Reno when it recognizes no congestion. A key feature of TCP-AReno is that it dynamically adjusts the TCP response function based on congestion estimation via...
[December 27, 2007, 0:01]
TCP Westwood: Bandwidth Estimation for Enhanced Transport Over Wireless Links
White Papers TCP Westwood (TCPW) is a sender-side modification of the TCP congestion window algorithm that improves upon the performance of TCP Reno in wired as well as wireless networks. The improvement is most significant in wireless networks with lossy links...
[December 6, 2007, 0:01]
Is Tampered-TCP Really Effective for Getting Higher Throughput in the Internet?
White Papers This paper focuses on a tampered-TCP in which the increase and decrease ratio of the congestion window size were changed during the congestion avoidance phase. This paper examines the effectiveness of tampered-TCP whose congestion control mechanism...
[December 6, 2007, 0:01]
On TCP-Aware Uplink Scheduling in IEEE 802.16 Networks
White Papers The first scheme uses TCP congestion window (cwnd) size, whereas the second one uses cwnd size and TCP timeouts to allocate time slots among the contending TCP flows. This paper propose two polling based scheduling schemes for applications based on...
[April 22, 2009, 1:24]
TCP With Header Checksum Option for Wireless Links: An Analytical Approach Towards Performance Evaluation
White Papers Basically, the TCP sender responds to these losses as if they were due to congestion in the network, and reduces the congestion window unnecessarily. In earlier work, it has been shown that adding a TCP header checksum is very useful in...
[December 20, 2007, 0:01]
TCP Westwood+ Enhancement in High-Speed Long-Distance Networks
White Papers In particular, the employment of a logarithmic function for congestion window increase in the absence of packet losses is proposed. In this paper, mechanisms to enhance the performance of TCP Westwood+ in the presence of a large Bandwidth-Delay...
[December 27, 2007, 0:01]
Mathematical Analysis of Westwood+ TCP Congestion Control
White Papers The estimate is used to adaptively decrease the congestion window and slow start threshold after congestion so that it can be said that Westwood+ TCP substitutes the classic multiplicative decrease with an adaptive decrease paradigm.
[December 21, 2007, 0:01]
COCOON: An Alternative Approach to End-Point Congestion Management
White Papers COCOON also allows a new connection to commerce with a congestion window that is large enough to catch up with other connections while not inducing congestion. This paper proposes an alternate endpoint congestion management scheme, called...
[December 13, 2006, 0:00]
YeAH-TCP: Yet Another Highspeed TCP
White Papers High bandwidth delay products require more aggressive window adaptation rules, yet maintaining the ability of controlling router buffer congestion. Several new TCP congestion control algorithms have been proposed to improve TCP performance over...
[December 20, 2007, 0:01]
