An analytical model of TCP (Transport Control Protocol) over an end-to-end path with random abrupt round-trip time (RTT) changes is presented. Modeling the RTT as a stochastic process, we analytically quantify and compare between the degree of degradation of the steady-state average throughput and window size due to spurious retransmissions for the different versions of TCP (Reno/NewReno versus...

This document describes a possible congestion control mechanism for acknowledgement traffic (ACKs) in TCP. The document specifies an end-to-end acknowledgement congestion control mechanism for TCP that uses participation from both TCP hosts, the TCP data sender and the TCP data receiver. The TCP data sender detects lost or ECN-marked ACK packets, and tells the TCP data receiver the ACK Ratio R ...

TCP Vegas version is expected to achieve higher throughput than TCP Tahoe and Reno versions, which are currently used in the Internet. However, we need to consider a migration path of TCP Vegas when it is deployed in the Internet. In this paper, we focus on the situation where multiple TCP Reno and Vegas connections coexist at the bottleneck router, by which the fairness property is investigate...

This report examines potential fairness problems associated with a model based approach to TCP-friendly ow control for non-TCP traac. In speciic, such an approach involves using a TCP-friendly formula that estimates the throughput of a TCP session with the same end-to-end traac characteristics as the non-TCP connection under consideration. The inputs to this formula include the round trip time,...

This document describes a possible congestion control mechanism for acknowledgement (ACKs) traffic in TCP. The document specifies an end-to-end acknowledgement congestion control mechanism for TCP that uses participation from both TCP hosts: the TCP data sender and the TCP data receiver. The TCP data sender detects lost or Explicit Congestion Notification (ECN)-marked ACK packets, and tells the...

This document describes a possible congestion control mechanism for acknowledgement (ACKs) traffic in TCP. The document specifies an end-to-end acknowledgement congestion control mechanism for TCP that uses participation from both TCP hosts: the TCP data sender and the TCP data receiver. The TCP data sender detects lost or Explicit Congestion Notification (ECN)-marked ACK packets, and tells the...

In this study we investigate the interaction between TCP and MAC layer in a wireless multi-hop network. This type of network has traditionally found applications in the military (automated battlefield), law enforcement (search and rescue) and disaster recovery (flood, earthquake), where there is no fixed wired infrastructure. More recently, wireless "ad-hoc" multi-hop networks have been propose...

In this paper, we examine the effects of TCP over a Multi-Slot GSM testbed as well as improving the performance of TCP using a smart link-level retransmission scheme. The smart link-level retransmission scheme (also known as the Snoop Protocol [1]), which was developed at the University of California in Berkeley, was designed to reduce the number of duplicate acknowledgements from returning to ...

multi-path is favorite alternative for sensor networks, as it provides an easy mechanism to distributetraffic, as well as considerate fault tolerance. in this paper, a new clustering based multi path routingprotocol namely ecrr (energy efficient cluster based routing algorithm for improving reliability) isproposed, which is a new routing algorithm and guarantees the achievement to required qos ...

When both TCP and UDP sessions co-exist in the Internet, the performance of TCP sessions easily deteriorate because of congestion incurred by UDP sessions of real-time multimedia applications. In this paper, we extend the TCP-friendly rate control protocol which originally pursuits the fair-share of link bandwidth among TCP and non-TCP sessions. With our proposed method, the achievable applicat...