Adaptive network coding schemes for satellite communications

Gharsellaoui, Ala Eddine; Ghanem, Samah A. M.; Tarchi, Daniele; Vanelli‐Coralli, Alessandro

doi:10.1109/asms-spsc.2016.7601546

Cited by 8 publications

(12 citation statements)

References 12 publications

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“…Those ave. no. of packets are drawn from evaluating the delay encountered at zero waiting time [12], when the system is adapted to the virtualized channel. Thus, the variance between the virtualization schemes is negligible, or small compared to no-virtualization.…”

Section: Numerical Resultsmentioning

confidence: 99%

Network Coding Channel Virtualization Schemes for Satellite Multicast Communications

Ghanem

Gharsellaoui

Tarchi

et al. 2017

GLOBECOM 2017 - 2017 IEEE Global Communications Conference

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In this paper, we propose two novel schemes to solve the problem of finding a quasi-optimal number of coded packets to multicast to a set of independent wireless receivers suffering different channel conditions. In particular, we propose two network channel virtualization schemes that allow for representing the set of intended receivers in a multicast group to be virtualized as one receiver. Such approach allows for a transmission scheme not only adapted to per-receiver channel variation over time, but to the network-virtualized channel representing all receivers in the multicast group. The first scheme capitalizes on a maximum erasure criterion introduced via the creation of a virtual worst per receiver per slot reference channel of the network. The second scheme capitalizes on a maximum completion time criterion by the use of the worst performing receiver channel as a virtual reference to the network. We apply such schemes to a GEO satellite scenario. We demonstrate the benefits of the proposed schemes comparing them to a per-receiver point-to-point adaptive strategy.

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Section: Numerical Resultsmentioning

confidence: 99%

Network Coding Channel Virtualization Schemes for Satellite Multicast Communications

Ghanem

Gharsellaoui

Tarchi

et al. 2017

GLOBECOM 2017 - 2017 IEEE Global Communications Conference

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“…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]. Performance metrics like Throughput, IP packet transmission delay (IPTD), and jitter or packet delay variation (IPDV) are affected directly by latency [1,7,10].…”

Section: Introductionmentioning

confidence: 99%

“…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]. Performance metrics like Throughput, IP packet transmission delay (IPTD), and jitter or packet delay variation (IPDV) are affected directly by latency [1,7,10]. This is more pronounced in satellite IP networks, especially with satellites in geostationary earth orbit (GEO) due to longer propagation paths and additional transmission and processing delays from end-to-end [11,12].…”

Section: Introductionmentioning

confidence: 99%

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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“…Consequently, more energy savings can be achieved [1]. Moreover, when the network coded schemes are specifically designed for enhancing their awareness with respect to the system characteristics, higher performance gains can be achieved in terms of delay, throughput or energy efficiency [2,3]. One of the most important issue to be considered in satellite communications is energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

Energy Efficient Adaptive Network Coding Schemes for Satellite Communications

Gharsellaoui

Ghanem

Tarchi

et al. 2017

Wireless and Satellite Systems

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In this paper, we propose novel energy efficient adaptive network coding and modulation schemes for time variant channels. We evaluate such schemes under a realistic channel model for open area environments and Geostationary Earth Orbit (GEO) satellites. Compared to non-adaptive network coding and adaptive rate efficient network-coded schemes for time variant channels, we show that our proposed schemes, through physical layer awareness can be designed to transmit only if a target quality of service (QoS) is achieved. As a result, such schemes can provide remarkable energy savings.

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Adaptive network coding schemes for satellite communications

Cited by 8 publications

References 12 publications

Network Coding Channel Virtualization Schemes for Satellite Multicast Communications

Network Coding Channel Virtualization Schemes for Satellite Multicast Communications

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

Energy Efficient Adaptive Network Coding Schemes for Satellite Communications

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