Eutelsat HTS systems

Fenech, Hector; Tomatis, A.; Amos, S.; Soumpholphakdy, V.; Merino, José Luís

doi:10.1002/sat.1171

Cited by 35 publications

(33 citation statements)

References 11 publications

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“…The advent of High Throughput Satellite (HTS) systems [1], [2] has revolutionized the concept of satellite communications in that new satellite systems operating in the Ka frequency band (and above) are being designed so as to provide geographical coverage through a large number of beams. Such dramatic change has started upon the ever-increasing user demand for broadcast/multicast services characterized by high data rates and reliability performance.…”

Section: Introductionmentioning

confidence: 99%

Radio Resource Management Optimization of Flexible Satellite Payloads for DVB-S2 Systems

Cocco

Cola

Angelone

et al. 2018

IEEE Trans. on Broadcast.

129

147

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The increasing demand for high-rate broadcast and multicast services over satellite networks has pushed for the development of High Throughput Satellites characterized by a large number of beams (e.g., more than 100). This, together with the variable distribution of data traffic request across beams and over time, has called for the design of a new generation of satellite payloads, able to flexibly allocate bandwidth and power. In this context, this paper studies the problem of radio resource allocation in the forward link of multibeam satellite networks adopting the Digital Video Broadcasting -Satellite -Second Generation (DVB-S2) standard. We propose a novel objective function with the aim to meet as close as possible the requested traffic across the beams while taking fairness into account. The resulting non-convex optimization problem is solved using a modified version of the simulated annealing algorithm, for which a detailed complexity analysis is presented. Simulation results obtained under realistic conditions confirm the effectiveness of the proposed approach and shed some light on possible payload design implications.

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Section: Introductionmentioning

confidence: 99%

Radio Resource Management Optimization of Flexible Satellite Payloads for DVB-S2 Systems

Cocco

Cola

Angelone

et al. 2018

IEEE Trans. on Broadcast.

129

147

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“…RESOURCE ALLOCATION STRATEGY Even assuming full channel state information at the transmitter, finding the optimal resource allocation is not trivial. This is due, on one side, to the non-convexity of the objective function and on the other side to the large number of possible solutions, which makes exhaustive search not viable 2 .…”

Section: B Problem Formulationmentioning

confidence: 99%

“…The advent of High Throughput Satellite (HTS) systems [1], [2] has revolutionized the concept of satellite communications in that new systems operating in the Ka frequency band (and above) are being designed in order to provide geographical coverage through a large number of beams. Such dramatic change has started upon the ever-increasing user demand for broadcast/multicast services characterized by high rates and reliability performance.…”

Section: Introductionmentioning

confidence: 99%

Radio resource management strategies for DVB-S2 systems operated with flexible satellite payloads

Cocco

Cola

Angelone

et al. 2016

2016 8th Advanced Satellite Multimedia Systems Conference and the 14th Signal Processing for Space Communications Workshop (ASM

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The increasing demand for high-rate broadcast and multicast services over satellite networks has pushed for the development of High Throughput Satellite (HTS) characterized by a large number of beams (e.g., more than 100). Moreover, the variable distribution of data traffic across beams and over time has called for the design of a new generation of satellite payloads, able to flexibly allocate bandwidth and power. In this context, this paper explores the technical challenges related to radio resource allocation in the forward link of multibeam satellite networks and proposes a strategy based on a modified version of the simulated annealing algorithm and a newly proposed objective function to meet as close as possible the requested traffic across the beams while taking fairness into account. Performance results confirm the effectiveness of the proposed approach and also shed some light on possible payload design implications.

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“…Thanks to the rapid development of antenna technology [1,2,3,4,5,6], a large number of high-gain beams can be created and a high order of frequency reuse can be employed in the service area of the system to achieve this large throughput [7]. A four-color frequency reuse scheme is adopted in current HTS systems to avoid co-frequency interference between adjacent beams as well as obtaining a fairly high frequency reuse factor [8].…”

Section: Introductionmentioning

confidence: 99%

User scheduling for multicast transmission in High Throughput Satellite systems

Zhang

Jia

Wei

et al. 2020

Preprint

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Adopting full frequency reuse in High Throughput Satellite (HTS) systems is expected to cope with huge communication demands and large user populations. Moreover, a kind of multicast transmission, which embeds the data of several users in each frame, can be employed to increase the efficiency of HTS systems. Multicast precoding is usually utilized in such systems to mitigate the co-frequency interference between beams and improve the efficiency of transmission. In this context, considering that the number of users may exceed the number of available communication resources in the system, we investigate user scheduling for the multicast transmission in HTS systems with full frequency reuse and multicast precoding. We perform user scheduling according to the user channel state information and decouple the scheduling problem into two phases: intra-beam and inter-beam scheduling. Intra-beam scheduling determines the users involved in the transmission of each frame with the purpose of reducing the influence of the multicast fashion. For intra-beam scheduling, we put forth a fixed-size user grouping algorithm. In contrast to previous studies, this algorithm takes the interference among beams into consideration during the scheduling. In inter-beam scheduling, user groups belonging to different beams are scheduled to improve the performance of the multiplexed transmission. An inter-beam scheduling algorithm is proposed to improve the fairness among users. The simulation results verify the superiority of the proposed algorithms in terms of fairness and spectral efficiency.

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Eutelsat HTS systems

Cited by 35 publications

References 11 publications

Radio Resource Management Optimization of Flexible Satellite Payloads for DVB-S2 Systems

Radio Resource Management Optimization of Flexible Satellite Payloads for DVB-S2 Systems

Radio resource management strategies for DVB-S2 systems operated with flexible satellite payloads

User scheduling for multicast transmission in High Throughput Satellite systems

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