Quality of service for satellite IP networks: a survey

Kota, Sastri; Marchese, Mario

doi:10.1002/sat.765

Cited by 38 publications

(22 citation statements)

References 96 publications

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“…However, the success of satellite networks hinges on the ability of the underlying protocols to function efficiently in the environment that is characterized by longer propagation delays (for GEO satellites) and poorer BER. As reported previously, these factors degrade the performance of TCP [2] particularly [3].…”

Section: Introductionsupporting

confidence: 53%

Performance Analysis of TCP-AFC for Satellite-based Networks

Kothari¹,

Gambhava²,

Dasgupta³

2010

IJCA

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Satellite has been identified as a potential candidate to meet the explosive Internet demand and to evolve the global Internet services. With a view to combat channel errors predominant in satellite based networks, TCP with Adaptive Flow Control and Delayed Fast Recovery (TCP-AFC) has been designed to identify a random loss with the help of selective acknowledgments. TCP-AFC has demonstrated significant performance enhancement in error prone environments through simulations and experiments on an active emulated network. In order to substantiate the improvement, we investigate the performance of TCP-AFC in a real environment consisting of a Ku band satellite link, which is more susceptible to atmospheric conditions. This paper focuses on evaluation of TCP-AFC in real life situations having appreciable channel noise and delay. Results of the extensive experiments conducted on a test bed consisting of a symmetric GEO satellite link for different channel conditions, data volume, data type and data traffic are presented in this paper. Analysis of the results reconfirms the compatibility of TCP-AFC in a heterogeneous network besides the performance improvement over a dedicated satellite link.

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Section: Introductionsupporting

confidence: 53%

Performance Analysis of TCP-AFC for Satellite-based Networks

Kothari¹,

Gambhava²,

Dasgupta³

2010

IJCA

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“…ETSI TS [14] and Kota et al [15] propose the use of the Diffserv architecture [9] on both forward and return link. This architecture is well adapted to the return link due to the different classes of service of DVB-RCS capacity allocation.…”

Section: General Qos Recommendations At Layer 3 In the Satellite Contextmentioning

confidence: 99%

A Cross-Layer Approach to Enhance QoS for Multimedia Applications Over Satellite

Gineste¹,

Wambeke²,

Expósito³

et al. 2008

Wireless Pers Commun

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The need for on-demand QoS support for communications over satellite is of primary importance for distributed multimedia applications. This is particularly true for the return link which is often a bottleneck due to the large set of end-users accessing a very limited uplink resource. Facing this need, Demand Assignment Multiple Access (DAMA) is a classical technique that allows satellite operators to offer various types of services, while managing the resources of the satellite system efficiently. Tackling the quality degradation and delay accumulation issues that can result from the use of these techniques, this paper proposes an instantiation of the Application Layer Framing (ALF) approach, using a crosslayer interpreter (xQoS-Interpreter). The information provided by this interpreter is used to manage the resource provided to a terminal by the satellite system in order to improve the quality of multimedia presentations from the end user's point of view. Several experiments are carried out for different loads on the return link. Their impact on QoS is measured through different application as well as network level metrics.

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“…Satellite communications has interesting and unique attributes such as global coverage, resilience, scalability, multi/broadcast capability, bandwidth-on-demand flexibility, reliability, high data rate and high capacity [1]. These particular features may uniquely position satellite communications as a key technology to provide broadband Internet access to remote isolated communities areas for bridging the digital gap and bring human and economic developments in these remote areas.…”

Section: Introductionmentioning

confidence: 99%

“…However, end-to-end (E2E) optimum performance and quality of service (QoS) at all network layers are required to meet current and future media-intense applications using satellite internet protocol (satellite IP). Internet applications mainly use the transmission control protocol (TCP/IP) stack originally developed for terrestrial networks, but the performance of TCP/IP applications is highly sensitive to long latency environments like in satellite networks [1,4]. Latency (i.e., delay) is the length of time for the signal or information transmitted from source (Tx) to be received by destination (Rx) [5].…”

Section: Introductionmentioning

confidence: 99%

“…Latency (i.e., delay) is the length of time for the signal or information transmitted from source (Tx) to be received by destination (Rx) [5]. High latency has direct significant impact on performance and quality of services (QoS) of communications systems, especially when using TCP/IP applications [1,6]. Optimum system performance can be achieved by improved latency, with next generation 5G networks aiming at maximum of 1ms latency with 1000-fold capacity [7]- [9].…”

Section: Introductionmentioning

confidence: 99%

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A Framework for End-to-End Latency Measurements in a Satellite Network Environment

Bisu

Purvis

Brigham

et al. 2018

2018 IEEE International Conference on Communications (ICC)

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Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Abstract-In this work, a precise method for end-to-end (E2E) latency measurement in satellite Internet protocol (SIP) network environment is proposed. Latency is considered a key parameter affecting the quality of service (QoS) and performance of communications. This is more pronounced in IP over Satellite. Metrics such as throughput and bandwidth performance of communications systems are dependent on latency, which also has a direct impact on other QoS metrics such as Internet packet transfer delay and delay variation or jitter. The upper limits of QoS objective performance metrics are defined by E2E latency for different QoS traffic classes in this environment. Therefore, there is a need to develop efficient methods for the accurate measurement of E2E latency in a SIP environment. Two case study scenarios were developed for satellite and hybrid networks to measure the latency in a SIP environment. Two Geostationary Satellite Network Services were used to compare the performance of the different scenarios and networks. The results demonstrate that at least 50% of the E2E latency is due to processing and transmitting IP packets over the satellite in both scenarios. Inconsistent latency behaviour was also observed from daily results at different times of the day, which may degrade performance of jitter sensitive applications.

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Quality of service for satellite IP networks: a survey

Cited by 38 publications

References 96 publications

Performance Analysis of TCP-AFC for Satellite-based Networks

Performance Analysis of TCP-AFC for Satellite-based Networks

A Cross-Layer Approach to Enhance QoS for Multimedia Applications Over Satellite

A Framework for End-to-End Latency Measurements in a Satellite Network Environment

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