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TCP Performance In Wireless Access With Adaptive Modulation And Coding
White Papers We analyze the end-to-end TCP performance via a fixed-point procedure that effectively couples TCP with the AMC-based wireless link. We study a wireless access system with adaptive modulation and coding (AMC) at the physical layer, finite-length...
[January 14, 2008, 23:00]
TCP Performance Over The WiBro Compatible 802.16e Systems
White Papers The study discussed in this paper is the TCP performance over Wireless Broadband access (WiBro) compatible 802.16e system based on the NS-2 simulator. The main observations are as follows: the uplink service that carries TCP ACK can be a bottleneck...
[December 20, 2007, 23:00]
TCP Performance Over End-to-End Rate Control And Stochastic Available Capacity
White Papers Motivated by TCP over end-to-end ABR, this paper studies the performance of adaptive window congestion control, when it operates over an explicit feedback rate-control mechanism, in a situation in which the bandwidth available to the elastic...
[January 14, 2008, 23:00]
TCP Performance Over Multipath Routing In Mobile Ad Hoc Networks
White Papers This paper investigates TCP performance over a multipath routing protocol. Thus, it has a great potential to improve TCP performance in ad hoc networks under mobility. When TCP is used, it was found that most times, using multiple paths...
[December 4, 2007, 23:00]
TCP Performance In Wireless Access With Adaptive Modulation And Coding
White Papers The paper analyzes the end-to-end TCP performance via a fixed-point procedure that effectively couples TCP with the AMC-based wireless link. Guided by the performance analysis, a simple cross-layer design is presented, which optimizes the target...
[December 6, 2007, 23:00]
TCP Vegas Performance With Streaming Media
White Papers The paper finds that: TCP is able to transport streaming media with good performance in a wide variety of scenarios; TCP Vegas performs better than TCP NewReno in many cases; and for viable media streams, both TCP variants need to achieve mean...
[December 26, 2007, 23:00]
Performance Evaluation Of TCP Under Dynamic Allocation Scheme For Down Link Transmission Rate In W-CDMA Systems
White Papers Therefore, this paper studies the characteristics of the dynamic allocation scheme when TCP flows share a wireless link, in particular by focusing on the throughput performance of those TCP flows. That can provide high-bit-rate data communication...
[December 5, 2007, 23:00]
Performance Evaluation Of TCP Congestion Control Algorithms Over UMTS
White Papers This work investigates the performance of TCP congestion control over UMTS networks. TCP congestion control was designed and optimized for wired networks. As a consequence, many improved TCP congestion control algorithms, able to effectively...
[December 20, 2007, 23:00]
TCP And UDP Performance For Internet Over Optical Packet-Switched Networks
White Papers This paper studies packet aggregation and deflection routing as employed in OPS networks on the performance of upper layer Internet protocols represented by TCP and UDP. The results show that for both TCP and UDP, mixed-flow aggregation achieves...
[January 14, 2008, 23:00]
Performance Evaluation Of Scalable TCP And HighSpeed TCP Over Geostationary Satellite Links
White Papers This paper analyse the performance in a satellite environment of two recently proposed modifications to the TCP's congestion control algorithm, namely Scalable TCP and HighSpeed TCP. These two protocols, originally designed for high-speed backbone...
[December 26, 2007, 23:00]
Scalable TCP Over Satellite Links: Performance Issues And Cross-Layer Design
White Papers This paper analyzes some issues related to the performance of a recently proposed TCP enhancement, Scalable TCP (S-TCP), over satellite links. First S-TCP features and assesses its performance in satellite networks are discussed, by means of...
[December 26, 2007, 23:00]
Performance Comparison Of TFRC And TCP
White Papers In this report, the performance of TCP, TCP (a, b) and TFRC in a congested network environment are compared. TCP congestion control is the most widely used congestion control protocol and a very successful one.
[December 6, 2007, 23:00]
Performance Enhancement Of An AF Service Using TCP-Aware Marking And Dynamic WRED
White Papers The work discussed in this paper proposes two modules, the TCP-Window Aware Marker (TWAM) and the Dynamic WRED (DWRED) mechanism for implementing the DiffServ AF PHB. The paper provides analytical models and an experimental evaluation in order to...
[December 26, 2007, 23:00]
TCP Performance Over Satellite In Case Of Multiple Sessions Per Links Using Efficient Flow Control And Real OS
White Papers TCP is the layer 4 protocol over which all the Internet applications are based. The high latency severely limits performance, especially if high bandwidth is available. Due to the high Bandwidth Delay Product a long time to fill the pipe is needed.
[December 4, 2007, 23:00]
Improving TCP Performance In Integrated Wireless Communications Networks
White Papers Many analytical and simulation-based studies of TCP performance in wireless environments assume an error-free and congestion-free reverse channel that has the same capacity as the forward channel. This paper first studies, through extensive...
[January 14, 2008, 23:00]
On The Performance Of TCP Spoofing In Satellite Networks
White Papers This paper analyzes the performance of TCP in a network that consists of both satellite and terrestrial components. Spoofing involves the transparent splitting of a TCP connection between the source and destination by some entity within the network...
[January 14, 2008, 23:00]
Improving The Performance Of TCP In The Case Of Packet Reordering
White Papers Reordering of packets decreases the TCP performance of a network, mainly because it leads to overestimation of the congestion of the network. This paper considers wired networks and analyzes the performance of such networks when reordering of...
[January 14, 2008, 23:00]
TCP Adaptive RTO To Improve TCP Performance In Mobile Ad Hoc Networks
White Papers This paper proposes a new mechanism called TCP Adaptive RTO (TCP AR) that improves TCP performance in mobile ad hoc network s. With the assumption that all packet losses are due to congestion, TCP performs poorly in such an environment.
[December 26, 2007, 23:00]
Improving TCP Performance With Periodic Disconnections Over Wireless Links
White Papers Since 1988, when the congestion control functions were first introduced, the performance of TCP has been greatly improved. However, TCP still suffers large performance degradation over wireless links due to characteristics specific to wireless...
[August 23, 2007, 0:00]
Optimum Number Of RLC Retransmissions For Best TCP Performance In UTRAN
White Papers This paper shows by analytical means and computer simulations that for a given Block Error Rate (BLER), the maximum number of RLC transmissions has a very important impact on TCP performance, both Round Trip Time (RTT) and throughput.
[December 26, 2007, 23:00]
