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On the Unsuitability of TCP RTO Estimation over Bursty Error Channels [chapter]

Marta García, Ramón Agüero, Luis Muñoz
2004 Lecture Notes in Computer Science  
This work identifies the presence of long idle times as the main cause for the high performance degradation suffered by TCP over bursty error environments.  ...  properly over channels prone to suffer from bursty errors.  ...  the maximum throughput obtained over an error-free channel [4] .  ... 
doi:10.1007/978-3-540-30199-8_28 fatcat:zll3xpbaujauvhlhepjgp63yle

Redundancy-controllable adaptive retransmission timeout estimation for packet video

Ali C. Begen, Yucel Altunbasak
2006 Proceedings of the 2006 international workshop on Network and operating systems support for digital audio and video - NOSSDAV '06  
This way, our RTO estimator configures itself based on the video characteristics and varying network conditions.  ...  The goal of this study is to address these problems by developing an adaptive RTO estimator for high-bitrate low-delay video applications.  ...  Acknowledgments-The authors would like to thank Mehmet A. Begen of University of British Columbia for his helpful discussions. This work is supported by NSF under NSF award CCF-0430907.  ... 
doi:10.1145/1378191.1378212 dblp:conf/nossdav/BegenA06 fatcat:c54ouxxcqnfdlps27sq4qcmmci

Accurate Simulation of 802.11 Indoor Links: A "Bursty" Channel Model Based on Real Measurements

Ramón Agüero, Marta García-Arranz, Luis Muñoz
2010 EURASIP Journal on Wireless Communications and Networking  
One of the main advantages of this proposal lies in its ability to reflect the "bursty" behavior which characterizes indoor wireless scenarios, having a great impact on the behavior of upper layer protocols  ...  An extensive measurement campaign was carried out to assess the performance of different transport protocols over 802.11 links.  ...  The authors would also like to express their gratitude to the anonymous reviewers, since their detailed comments have helped them to improve the quality of the paper.  ... 
doi:10.1155/2010/380410 fatcat:u2l5nkhxzne2bhuo5vf4frgium

Improving TCP Performance Over Wireless Network With Frequent Disconnections

Purvang Dalal, Nikhil Kothari, Dasgupta
2011 International Journal of Computer Networks & Communications  
Results of simulation based experiments demonstrate considerable performance improvement with the proposed modifications over the conventional TCP, when a wireless sender is experiencing frequent link  ...  The proposed modifications which depend on interaction between two layers (i) reduce the idle time before transmission at TCP by preventing timeout occurrences and (ii) decouple the congestion control  ...  This results into false Round Trip Time (RTT) estimation leading to an increased RTO interval. A longer RTO interval subsequently prevents TCP from regaining the available network bandwidth, sooner.  ... 
doi:10.5121/ijcnc.2011.3611 fatcat:lnarq33jcfh65cizx4nrxuebiu

An Adaptive Media-Aware Retransmission Timeout Estimation Method for Low-Delay Packet Video

A.C. Begen, Y. Altunbasak
2007 IEEE transactions on multimedia  
Furthermore, our results also substantiate the fact that the media-aware RTO estimator outperforms all other RTO estimators in terms of video quality.  ...  In the media-aware mode, on the other hand, the timeout estimates are jointly optimized based on the importance and urgency of the video packets such that the rendering quality is maximized under the given  ...  One important issue in RTO estimation is the rapid convergence of the timeout estimates. Based on our simulations, we found that RTO E−TCP required at least 15-20 samples to produce good estimates.  ... 
doi:10.1109/tmm.2006.886282 fatcat:eqnost2lxjbadohb6lgrukok2m

Multi-connection TFRC Video Streaming in a Concatenated Network: Latency and Video Quality [chapter]

Salah S. Al-Majeed, Martin Fleury
2010 Communications in Computer and Information Science  
Sending a single video stream over multiple TCP-Friendly Rate Control (TFRC) connections is a promising lightweight way of coping with wireless channel losses and traffic congestion in a concatenated network  ...  It also considers the impact on video quality of packet drops due both to channel loss and router buffer overflow, when the TFRC congestion controller is applied.  ...  by each ACK. b is normally set to one and t rto = 4t rtt .  ... 
doi:10.1007/978-3-642-14171-3_4 fatcat:reqezmjrindmtiif2qv7rfk4ii

DCCP video streaming over multiple connections in the wireless internet

Salah M. Saleh Al Majeed, Martin Fleury
2011 International Journal of Internet Protocol Technology  
It also considers the impact on video quality of packet drops due both to channel loss and router buffer overflow, when the DCCP congestion controller is applied.  ...  Multiplexing a single video stream over several Datagram Congestion Control (DCCP) connections is a way of coping with wireless channel losses and traffic congestion in the wireless Internet, without the  ...  The study has shown that with static scheduling of the video stream over the connections, increased throughput results. Reducing the video send time reduces the risk from wireless channel error.  ... 
doi:10.1504/ijipt.2011.040612 fatcat:zw2tsvslujgttfg7m3ciu4zlce

On the use of Hidden Markov Processes and auto-regressive filters to incorporate indoor bursty wireless channels into network simulation platforms

David Gómez, Ramón Agüero, Marta García-Arranz, Luis Muñoz
2015 Wireless networks  
We compare it with the behavior of the Bursty Error Model Based on an Auto-Regressive filter (BEAR), a previous proposal of ours that emulates the received Signal to Noise Ratio (SNR) by means of an autoregressive  ...  The study is based on an extensive simulation campaign carried out over the ns-3 platform, and it also looks at the computational complexity of the two approaches (trade-off between accuracy and required  ...  Acknowledgements The authors would like to express their gratitude to the Spanish government for its funding in the project "Connectivity as a Service: Access for the Internet of the Future", COSAIF (TEC2012  ... 
doi:10.1007/s11276-015-0909-0 fatcat:dnkfk7auyrbozdf6ih3nzj63ye

Applying Multi-Connection Video Streaming to WiMAX Broadband Wireless

Salah S. Al-Majeed, Martin Fleury
2010 Journal of Communications  
The paper assesses the impact on video quality of packet drops due both to channel loss over a WiMAX access link and router buffer overflow across an all-IP network, consisting of broadband wireless access  ...  Streaming a single video over multiple TCP-Friendly Rate Control (TFRC) connections is a way of separately coping with both wireless channel losses and traffic congestion, without the need for cross-layer  ...  the number of packets acknowledged by each ACK. b is normally set to one and t rto = 4t rtt .  ... 
doi:10.4304/jcm.5.8.583-592 fatcat:x6kwzn2ec5e5xnl4464xng6vzi

Performance of the Transport Layer Security Handshake Over 6TiSCH

Timothy Claeys, Mališa Vučinić, Thomas Watteyne, Franck Rousseau, Bernard Tourancheau
2021 Sensors  
We port the mbedTLS library to OpenWSN, a 6TiSCH reference implementation, and deploy the code on the state-of-the-art OpenMote platform.  ...  We show that, when the peers use an ideal channel, the DTLS handshake uses up to 800 less and completes 0.6 s faster.  ...  Channel hopping and dedicated cells in the schedule mitigate many transmission errors due to multipath fading and collisions.  ... 
doi:10.3390/s21062192 pmid:33801018 fatcat:p676stshsjdbloekjvdkm64ney

A Survey on Recent Advances in Transport Layer Protocols [article]

Michele Polese, Federico Chiariotti, Elia Bonetto, Filippo Rigotto, Andrea Zanella, Michele Zorzi
2018 arXiv   pre-print
optimal performance in challenging scenarios, possibly with the application of machine learning techniques; (ii) the proposal of brand new transport protocols, alternative to TCP and implemented in the  ...  Over the years, the Internet has been enriched with new available communication technologies, for both fixed and mobile networks and devices, exhibiting an impressive growth in terms of performance, with  ...  Performance on Wireless Channels The performance of TCP on wireless channels has been investigated since the introduction of the first commercial wireless services in the 1990s [67] .  ... 
arXiv:1810.03884v1 fatcat:aqoomjapo5ffld4hkvbkv4s4cq

SSVP: A congestion control scheme for real-time video streaming

Panagiotis Papadimitriou, Vassilis Tsaoussidis
2007 Computer Networks  
The smoothness-oriented modulation of AIMD parameters and IPG adjustments reduce the magnitude of AIMD oscillation and allow for smooth transmission patterns, while TCP-friendliness is maintained.  ...  Our experimental results demonstrate that SSVP eventually adapts to the vagaries of the network and achieves remarkable performance on real-time video delivery.  ...  Fig. 11 illustrates the sending rates of an SSVP and an FTP flow over TCP Reno, while sharing a network channel (dumbbell topology). In this case, the target sending rate for SSVP is set to 1 Mbps.  ... 
doi:10.1016/j.comnet.2007.06.018 fatcat:why56wx2njak3haqfnwypkt5eq

Metadata-driven multimedia transcoding for distance learning

Mazen Almaoui, Azadeh Kushki, Konstantinos N. Plataniotis
2007 Multimedia Systems  
Advances in multimedia processing capabilities of electronic devices and the rapid growth of the Internet have contributed to the proliferation of collaborative applications such as distance learning (  ...  A novel MPEG-21based adaptation architecture is presented to overcome these challenges by performing (1) application layer transcoding that adapts the presentation format of DL content to match device  ...  Thus, the error e taken over all sheets is generally smaller than the error taken over the pre-filtered set.  ... 
doi:10.1007/s00530-006-0071-8 fatcat:me73kpp6n5h2xkca6ceqop7jnu

A methodology for studying persistency aspects of internet flows

Jörg Wallerich, Holger Dreger, Anja Feldmann, Balachander Krishnamurthy, Walter Willinger
2005 Computer communication review  
Crocker who commented on the creation and destruction of associations. Acknowledgments  ...  The research of the authors is supported in part by EPSRC grant GR/S86266/01.  ...  the retransmission timeout (RTO) estimate of the server.  ... 
doi:10.1145/1064413.1064417 fatcat:b5leqpkvmnd5paw2vws4mqhlme

Protocols for Transferring Bulk Data over Internet: Current Solutions and Future Challenges

Khawar Khurshid, Imdad Ullah, Zawar Shah, Najm Hassan, Tariq Ahamed Ahanger
2021 IEEE Access  
The TCP-sender dynamically calculates the RTO as the estimated Round Trip Time (RTT).  ...  ERROR CONTROL To implement error control i.e. enabling reliable communication over unreliable channel, TCP uses acknowledgement mechanism implemented via sequence number to achieve reliable data delivery  ...  Furthermore, the TCP friendliness of FASP also needs to be studied.  ... 
doi:10.1109/access.2021.3094656 fatcat:n25nalmgfjcfpgdgdevoq4ybba
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