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On the quality of VoIP with DCCP for satellite communications

Golam Sarwar, Roksana Boreli, Emmanuel Lochin
2012 International Journal of Satellite Communications And Networking  
Authors would also like to thank IPSTAR Australia for their continuing support, anonymous reviewers and Arjuna Sathiaseelan for several discussions on RFC 5348.  ...  lower quality as there is no other means of communication available.  ...  Fig. 3 shows result of ns-2 simulation of the DCCP/CCID3 performance with standard and with dynamic feedback, with RTT of 1sec on the nominal satellite link with a 1Mbit/s downlink rate, patched to include  ... 
doi:10.1002/sat.1010 fatcat:molbijvlv5b4dgx6dv32yjvk4i

Performance of VoIP with DCCP for Satellite Links

G. Sarwar, R. Boreli, E. Lochin
2009 2009 IEEE International Conference on Communications  
Our experiments are done on a commercial satellite service using a data stream generated by a VoIP application, configured with selected voice codecs and using the DCCP/CCID4 Linux implementation.  ...  for use with VoIP applications.  ...  DCCP awareness of transport layer losses can be used for call admission control in VoIP applications.  ... 
doi:10.1109/icc.2009.5199334 dblp:conf/icc/SarwarBL09 fatcat:i5dje3bqprgppjkdh2xhvsew4u

Performance of VoIP using DCCP over a DVB-RCS Satellite Network

A. Sathiaseelan, G. Fairhurst
2007 2007 IEEE International Conference on Communications  
The long round trip delay when the path includes a satellite link could therefore degrade the performance of VoIP.  ...  The paper concludes that the current algorithm of CCID4 suffers for paths with appreciable delay when used to support voice calls with a bursty nature.  ...  ACKNOWLEDGEMENTS We would like to thank Raffaello Secchi from ISTI for providing and helping us understand the intricacies of the TDMA-BoD code.  ... 
doi:10.1109/icc.2007.12 dblp:conf/icc/SathiaseelanF07 fatcat:gpfb3sqjf5fk7jb4anfqxwjh74

Delivery of triple-play services over broadband satellite networks

G. Fairhurst, A. Sathiaseelan, C. Baudoin, E. Callejo
2010 IET Communications  
These types of services are particularly suited to next generation satellite systems that combine transparent and multi-spot beam satellites with on-board regenerative signal processing, and can evolve  ...  This will allow closer integration of satellite networks with the next generation of multimedia-enabled networks enabling operators to offer triple-play services that simultaneously support voice over  ...  Acceptable VoIP quality was observed with a transparent payload providing that one of the communicating peers was behind the gateway. A VoIP traffic from the gateway to an RCST uses the forward link.  ... 
doi:10.1049/iet-com.2009.0205 fatcat:yeenhoarrfhf3j75qrrw5tn434

Multimedia Congestion Control for Broadband Wireless Networks

Arjuna Sathiaseelan, Gorry Fairhurst
2007 2007 16th IST Mobile and Wireless Communications Summit  
A new protocol called the DCCP was therefore proposed by the IETF to allow efficient delivery of multimedia applications while also being able to detect and respond to network congestion.  ...  This raises fairness issues when used in the general Internet, and the possibility of starvation of other packet flows. The applications therefore need to evolve to use a congestion control protocol.  ...  VoIP over DCCP To assess the quality of a VoIP call using DCCP CCID 4 for a range of delays, simulations were performed by modeling the G.711 (64kbps) and G.729 (8kbps) codecs, both with and without Voice  ... 
doi:10.1109/istmwc.2007.4299241 fatcat:kyp7o62eo5cihdzigvf3pxyceu

Scheduling TCP-friendly flows over a satellite network

Raffaello Secchi, Arjuna Sathiaseelan, Gorry Fairhurst
2008 2008 IEEE International Workshop on Satellite and Space Communications  
We discuss in this paper basic requirements of an RCST gateway supporting VoIP traffic without strict QoS provisioning.  ...  The main elements of this architecture are illustrated throughout the paper following a layered structure.  ...  The maximum R-score for a satellite environment with a delay of 280 ms and no losses corresponds to 76.2, which is considered Medium quality according to ITU-T recommendations.  ... 
doi:10.1109/iwssc.2008.4656773 fatcat:tknlsj6zojhz7hck3b7cea7z7q

Performance Evaluation of UDP, DCCP, SCTP and TFRC for Different Traffic Flow in Wired Networks

Ali Hussein Wheeb
2017 International Journal of Electrical and Computer Engineering (IJECE)  
In this paper, we evaluate the performance of UDP, DCCP, SCTP and TFRC protocols for different traffic flows: data transmission, video traffic, and VOIP in wired networks.  ...  <p>The demand for internet applications has increased rapidly. Providing quality of service (QoS) requirements for varied internet application is a challenging task.  ...  In [6] evaluated the performance of DCCP/CCID4 on a live satellite link for a number of scenarios which include different voice codecs and a varying number of simultaneous VoIP calls.  ... 
doi:10.11591/ijece.v7i6.pp3552-3557 fatcat:ghybjaihavhxxdacqmw7oyyhrm

TCP-Friendly Rate Control (TFRC) for bursty media flows

Arjuna Sathiaseelan, Gorry Fairhurst
2011 Computer Communications  
One way to counter this deficiency would be for the sender to continue to transmit at the media rate during periods of silence, known as padding.  ...  This paper describes candidate methods that were evaluated as a part of this revision and presents the first analysis of the new TFRC specification including a comparison this with the proposed Faster  ...  Acknowledgements We thank Sally Floyd for her extensive feedback on this paper and members of the IETF DCCP working group for their contributions to RFC 5348 and FR.  ... 
doi:10.1016/j.comcom.2011.05.003 fatcat:yrn6buvs2fad3id7iht57ee3z4

Congestion-aware TCP-friendly system for multimedia transmission based on UDP

Mohammed M. Kadhum, Hossam S. Hassanein
2015 Cluster Computing  
Under the limitation of network bandwidth, multimedia traffic may become a source for congestion; particularly when UDP is used due to the absence of flow control or congestion control mechanisms in this  ...  This guarantees the availability of buffer capacity for successful buffering and consequent forwarding in case of temporary traffic upsurges which could otherwise cause buffer overflows and packet loss  ...  Motivation One of the target applications of DCCP is Internet telephony (VoIP), which is an increasingly popular application.  ... 
doi:10.1007/s10586-015-0446-8 fatcat:p2b2co5qbbh6jnohgk7qjsekga

SATSIX: A Network Architecture for Next-Generation DVB-RCS Systems [chapter]

L. Fan, C. Baudoin, F. Rodriguez, A. Ramos, J. A. Guerra, B. de La Cuesta, G. Fairhurst, A. Sathiaseelan, P. Berthou, T. Gayraud, L. Liang, A. Yun (+5 others)
2008 IP Networking over Next-Generation Satellite Systems  
This paper describes the design of the SATSIX network architecture, with particular reference to support for IPv6 and thw integration of hybrid satellite and wireless local loops (WiFi and WiMAX), which  ...  Standards-based Congestion-Control and NAT-traversal are key features of the new DCCP protocol, while supporting the flow-based semantics of TCP, but not the in-order delivery and reliability of TCP.  ...  Acknowledgement This work is supported by the IST FP6 SATSIX project, funded by European Commission (EC). The financial contribution of the EC towards this project is greatly appreciated.  ... 
doi:10.1007/978-0-387-75428-4_8 fatcat:llhk7zijxfhwpoktegts6qs3oy

Performance Evaluation of TCP and DCCP Protocols in Mobile Ad-Hoc Networks (MANETS)

Adnan Khan, Alaa Almagrabi, Shakeel Ahmad, Sher Afzal Khan
2016 VFAST Transactions on Software Engineering  
Only on one side of the connection DCCP supports the mobility while the other side of the connection should remain constant.  ...  In this research work, major performance metrics with the issue of power usage of the TFRC and TCP like DCCP protocols are evaluated. feature location and other one is a remote feature of the connection  ...  satellite) links [13] .  ... 
doi:10.21015/vtse.v10i1.413 fatcat:hvohlxui5bh6pbfeepfcpi462e

S-TFRC: An efficient rate control scheme for multimedia handovers

Imdad Ullah, Zawar Shah, Adeel Baig
2016 Computer Science and Information Systems  
We present detailed analysis on the performance of proposed mechanism in terms of resuming transmissions during the handover process.  ...  We also consider transmission delays and transmission rates as performance metrics and compare performance of S-TFRC with the standard TFRC.  ...  Section 2 provides necessary background on the congestion control mechanisms of DCCP along with the motivation for its use in vertical handovers.  ... 
doi:10.2298/csis150122044u fatcat:z3afkook2jek5cc2nfgzz6ssqi

Communications and networking over satellites: SatNEx experimental activities and testbeds

T. de Cola, L. Ronga, T. Pecorella, P. Barsocchi, S. Chessa, E. Ferro, A. Gotta, G. Oligeri, F. Potortì, R. Secchi, A. Sathiaseelan, V. M. Castro (+3 others)
2009 International Journal of Satellite Communications And Networking  
One of the aims of the SatNEx (Satellite Network of Excellence, http://www.satnex.de) European project is to provide the scientific community that operates on satellite communications with measurement  ...  The activity that we present has been carried out by means of suitable investigation tools, specifically devised to allow the accurate analysis of several aspects in the field of satellite communications  ...  ACKNOWLEDGEMENTS Work funded by the European Community in the framework of the FP6 SatNEx NoE project.  ... 
doi:10.1002/sat.921 fatcat:fnrizoikgzdglfw6kkbi2znwta

Transport challenges facing a next-generation hybrid satellite Internet

Gorry Fairhurst, Arjuna Sathiaseelan, Haitham Cruickshank, Cedric Baudoin
2011 International Journal of Satellite Communications And Networking  
A history of TCP protocol evolution from a satellite perspective is followed by focussing on the role of protocol-enhancing proxies in satellite systems and how these have impacted the introduction of  ...  This paper considers the transport layer implications by assuming a position where satellite networks form one integrated component of a hybrid Internet architecture.  ...  The European Satellite Communications NoE (SatNEx II, IST-27393) is funded within the EC 6th Research Framework Programme.  ... 
doi:10.1002/sat.974 fatcat:aeqpzv52vve2dahbev5y5v3lku

Mobility management across hybrid wireless networks: Trends and challenges

Farhan Siddiqui, Sherali Zeadally
2006 Computer Communications  
Internetworking these types of networks will provide mobile users with ubiquitous connectivity across a wide range of networking environments.  ...  Real deployment of such mobility strategies remains a significant challenge. In this article, we focus on handoff management.  ...  For worldwide coverage, satellite networks have been used extensively in military and commercial applications.  ... 
doi:10.1016/j.comcom.2005.09.003 fatcat:y5yxzbqbyzaknp35yi66aekpra
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