With the proliferation of mobile and wireless computing devices, the demand for continuous network connectivity exits for various wired-and-wireless integrated networks. Since Transmission Control Protocol (TCP) is the standard network protocol for communication on the Interne, any wireless network with Internet service need to be compatible with TCP. TCP is tuned to perform well in traditional...

This document specifies a profile for Congestion Control Identifier 4, the small-packet variant of TCP-Friendly Rate Control (TFRC), in the Datagram Congestion Control Protocol (DCCP). CCID 4 is for experimental use, and uses TFRC-SP (RFC 4828), a variant of TFRC designed for applications that send small packets. CCID 4 is considered experimental because TFRC-SP is itself experimental, and is n...

InfiniBand System Area Networks using link-level flow control can experience congestion spreading, where one bottleneck link causes traffic to block throughout the network. End-to-end congestion control using Explicit Congestion Notification (ECN) packet marking has the potential to solve this problem. In this paper, we develop and evaluate ECN mechanisms for switches with input-buffered config...

This paper reports implementation and experimentation of a new IP rate control protocol proposed to alleviate congestion in the gateway of a LAN connected to external networks. Congestion is avoided by using explicit rate notification to LAN hosts via new ICMP control messages. In addition to avoiding congestion, the protocol also allows for greater fairness and priority in network traffic, whi...

In a network which does not differentiate among users, the equilibrium rate for any user is primarily decided by the congestion control being used. By changing their congestion control schemes, “uncooperative” users can gain more than their fair share of bandwidth, at the cost of cooperative users. We present a control-theoretic algorithm to counteract uncooperative users by adjusting the price...

This paper presents a new active queue management (AQM) scheme -Fuzzy Explicit Marking (FEM)supporting explicit congestion notification (ECN), to provide congestion control in TCP/IP besteffort networks using a fuzzy logic control approach. While many AQM mechanisms have recently been proposed, these require careful configuration of nonintuitive control parameters, and show weaknesses to detect...

Most AQM algorithms, such as RED, assure fairness through randomness in congestion notification. However, randomness results in fair allocation of network resources only when time limitations are not considered. This is not compatible with the current Internet, where traffic oscillations are frequent and the demand for fair treatment is rather urgent, due to short duration of most applications....

The end-to-end TCP congestion control based on a window flow control mechanism can cause unfairness among multiple TCP connections with different RTT (round trip time), dut to its non-uniform increase of the rate. In order to achieve the fairness among TCP connections, we propose a rate control scheme using ECN (Explicit Congestion Notification) on TCP congestion control. At an ECN-implemented ...

This paper presents a new active queue management (AQM) scheme, Fuzzy Explicit Marking (FEM), supporting explicit congestion notification (ECN), to provide congestion control in TCP/IP best-effort networks using a fuzzy logic control approach. While many AQM mechanisms have recently been proposed, these require careful configuration of non-intuitive control parameters, and show weaknesses to de...