In this paper we propose the use of a TCP/IP-friendly link level error recovery mechanism with novel design in conjunction with state-of-the-art Transmission Control Protocol (TCP) enhancements to improve TCP performance on network paths involving Wireless Wide-Area Network (W-WAN) links. We show that by combining a selected set of TCP enhancements TCP performance is significantly improved over...

Transmission control protocol (TCP) is a connection oriented protocol for several types of distributed applications. TCP is reliable particularly for traditional fixed networks. With emergence of faster wireless networks, TCP has been performing poorly in its original format. The performance of TCP is affected due to assorted factors including congestion window, maximum packet size, retry limit...

We propose some improvements of TCP Vegas and compare its performance characteristics with TCP Reno. We argue through analysis that TCP Vegas, with its better bandwidth estimation scheme, uses the network resources more efficiently and fairly than TCP Reno. Simulation results are given that support the results of the analysis. Keywords—TCP Reno, TCP Vegas, Congestion Control, Fairness

Tbmugbput fairness is an important d e r i a for evaluating TCP pe fomance. Fairness is especial! important for best effort service, which is still the dominant gpe o f service in the Internet and, predictab!, in the years to come. However, the TCP pmtocols prevailing in the Internet, including TCP Tahoe and TCP Reno, are known to be unfair, especial! to connections with larger mund-tnp delays....

We study in this paper the throughput of a TCP connection performing ideal congestion avoidance. With respect to existing studies published on the same topic, we determine upper and lower bounds for the throughput of a TCP connection experiencing an arbitrary constant loss. We then derive exact convergence results when the loss probability becomes arbitrarily small. A remarkable property of the...

The aim of this study is to produce highly dense Si3N4 based composites with good mechanical properties and bioactivity. ceramics without using sintering aids, Si3N4-HA Si3N4-HA-GNP have been produced by spark plasma (SPS) at temperatures 1525–1550°C. effect reinforcement type content on the densification behavior, phase analysis, microstructural development, properties, in-vitro bioactivity be...

Preface In the Internet, TCP (Transmission Control Protocol) has been widely used as its transport-layer protocol. Many Internet services such as HTTP (Hyper Text Transfer Protocol) for World Wide Web and FTP (File Transfer Protocol) are designed on the basis of TCP. A number of researchers have been extensively working on TCP's congestion control mechanisms which is an essential part to realiz...

Abstract Introduction: Achievement of new drugs with minimal side effects is a important goal in the cancer treatment due to irreversible side effects of conventional drugs. Tricalcium phosphates as natural bone components have unique characteristics including excellent biocompatibility, high biosorption and superior bioactivity. This research aimed at investigating the inhibitory effect of tr...

This paper presents several considerations on the hybrid TCP congestion control, in which lossbased schemes like TCP-Reno and delay-based schemes like TCP-Vegas are combined in a smart way. We firstly introduce simple analytical models of loss-based TCP, delay-based TCP and their hybrid. With support of experimental results, effectiveness of the hybrid TCP is proved. Then, we try to develop a m...