Optimized GSE packet scheduling over DVB-S2

Dupé, Jean-Baptiste; Chaput, Emmanuel; Baudoin, Cédric; Bes, Caroline; Deramecourt, Arnaud; Beylot, André‐Luc

doi:10.1109/glocom.2014.7037241

Cited by 4 publications

(5 citation statements)

References 6 publications

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“…They can use different metrics as the throughput of the link or the waiting time in the queue to schedule packets transmission. Some studies have already compared main existing algorithms [16,15] in a satellite context. The main results are summarized in Table 1.…”

Section: Our Proposal: Scheduling Users To Improve Performancementioning

confidence: 99%

“…This problem is not new, scheduling transmission to optimize the use of the LMS link has been deeply tackled by the satellite networking community [30,17,8]. In particular in [16,15], different metrics to schedule the packets, such as the throughput or the waiting time of the enqueued packets are investigated. Depending on the application chosen, VoIP carried by UDP or Internet browsing carried by TCP, we assess which scheduler is more fitted for each case, to optimize user QoE.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Scheduling flows over LEO constellations on LMS channels

Tauran

Lochin

Lacan

et al. 2020

Satell Commun Network

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Satellite systems typically use physical and link layer reliability schemes to compensate the significant channel impairments, especially for the link between a satellite and a mobile end-user. These schemes have been introduced at the price of an increase in the end-to-end delay, high jitter or out-of-order packets. This is show to have a negative impact both on multimedia and best-effort traffic, decreasing the Quality of Experience (QoE) of users. In this paper, we propose to solve this issue by scheduling data transmission as a function of the channel condition. We first investigate existing scheduling mechanisms and analyze their performance for two kinds of traffic: VoIP and best-effort. In the case of VoIP traffic, the objective is to lower both latency and jitter, which are the most important metrics to achieve a consistent VoIP service. We select the best candidate among several schedulers and propose a novel algorithm specifically designed to carry VoIP over LEO constellations. We then investigate the performance of the scheduling policies on Internet-browsing traffic carried by TCP, where the goal is now the maximize the users' goodput, and select the best candidate in this case.

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Section: Our Proposal: Scheduling Users To Improve Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Scheduling flows over LEO constellations on LMS channels

Tauran

Lochin

Lacan

et al. 2020

Satell Commun Network

View full text Add to dashboard Cite

show abstract

“…They can use different metrics as the throughput of the link or the waiting time in the queue to schedule packets transmission. Some studies have already compared main existing algorithms [9], [10] in a satellite context. The main results are summarized in Table I.…”

Section: Transport Protocol and Trafficmentioning

confidence: 99%

“…This problem is not new, scheduling transmission to optimize the use of the LMS link has been deeply tackled by the satellite networking community [6], [7], [8]. In particular in [9], [10], different metrics to schedule the packets, such as the throughput or the waiting time of the packets in the queue are investigated. However and in our context, our contribution leads to assess which scheduler would allow to deploy a VoIP service while maximizing user QoE.…”

Section: Introductionmentioning

confidence: 99%

Controlled Delay Scheduler for VoIP over LEO constellations on LMS channels

Tauran

Lochin

Lacan

et al. 2018

2018 9th Advanced Satellite Multimedia Systems Conference and the 15th Signal Processing for Space Communications Workshop (ASM

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Satellite transmissions can suffer from high channel impairments, especially on the link between a satellite and a mobile end-user. To cope with these errors, physical and link layer reliability schemes have been introduced at the price of an end-to-end delay increase resulting in high jitter. Unfortunately, both the delay and the jitter negatively impacts on multimedia traffic. As a matter of fact, not taking into account the channel state greatly decreases the Quality of Experience (QoE) of VoIP users. In this paper, we propose to solve this issue by scheduling data transmission as a function of the channel condition. We first investigate existing scheduling mechanisms and analyze their performance for VoIP traffic with the objective to lower both latency and jitter, which are the most important metrics to achieve a consistent VoIP service. We select the best candidate among several schedulers and propose a novel algorithm specifically designed to carry VoIP over LEO constellations. Our simulations show that in some scenarios, we double the QoE of VoIP users.

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“…The payload in a BBFRAME depends on the MODCOD. Joint algorithms on the decisions of the scheduling and the available payload have been proposed [25]. The baseband gateway QoS must therefore deal with fixed throughput incoming data and variable available throughput for outgoing packets, while minimizing the amount of padding and the number of dropped packets.…”

Section: Control Plane Qosmentioning

confidence: 99%

Software‐defined satellite cloud RAN

Ahmed

Dubois

Dupé

et al. 2017

Satell Commun Network

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SUMMARYThis paper provides an assessment study on the virtualization of a Digital Video Broadcasting -Satellite -Second Generation (DVB-S2)/ Digital Video Broadcasting -Return Channel Satellite -Second Generation (DVB-RCS2) satellite ground infrastructure and proposes a framework, named Satellite Cloud Radio Access Network (SatCloudRAN), that aims to ease the integration of satellite components in forthcoming 5G systems. Special attention is given to the design of SatCloudRAN by considering the split and placement of virtualized and nonvirtualized functions while taking into account the characteristics of the transport links connecting both type of functions. We assess how virtualization and softwarization technologies, namely, network function virtualization and softwaredefined networking, can deliver part of the satellite gateway functionalities as virtual network functions and achieve a flexible and programmable control and management of satellite infrastructure. Under the network function virtualization paradigm, building virtual network function blocks that compose a satellite gateway have been identified, and their interaction exhibited. This paper also gives insights on how the SatCloudRAN approach can allow operators to provide software-defined networking-based (1) bandwidth on demand, (2) dynamic Quality of Service, and (3) satellite gateway diversity.

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Optimized GSE packet scheduling over DVB-S2

Cited by 4 publications

References 6 publications

Scheduling flows over LEO constellations on LMS channels

Scheduling flows over LEO constellations on LMS channels

Controlled Delay Scheduler for VoIP over LEO constellations on LMS channels

Software‐defined satellite cloud RAN

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