Rule-based packet scheduling for DVB-S2 through generic stream encapsulation

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

doi:10.1109/icc.2014.6883876

Cited by 5 publications

(4 citation statements)

References 13 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%

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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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Cross-Layer Forward Packet Scheduling for Emerging Precoded Broadband Multibeam Satellite System

Lagunas

Andrenacci

Chatzinotas

et al. 2018

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

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In this paper, we investigate the forward packet scheduling of a broadband GEO multibeam satellite system that aggressively reuses the user link frequency resources, and thus considers the implementation of interference mitigation techniques at the transmitter side to exploit the multi-antenna multiplexing via precoding. The scheduling and the precoding design are closely coupled with each other, making it very challenging to provide a joint optimal solution that can be implemented in practical systems. On the other hand, future broadband satellite systems have to be capable of accommodating heterogeneous services and guarantee their corresponding uneven Quality of Service (QoS) requirements. As a consequence, we propose a novel cross-layer scheduling algorithm which takes into account the physical layer framing together with the modulator and precoding functionality combined with system constraints imposed by QoS requirements in upper layers. The proposed design is compared and validated using numerical results considering a realistic multibeam satellite system.

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Rule-based packet scheduling for DVB-S2 through generic stream encapsulation

Cited by 5 publications

References 13 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

Cross-Layer Forward Packet Scheduling for Emerging Precoded Broadband Multibeam Satellite System

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