AmerHis next generation global IP services in the space

Yun, Ana; Casas, Ona Valls; Moreno, Isaac; Solano, Ana; Rodríguez, José María Fernández; Salas, Carla; Miguel, Ignacio de; Rodriguez, E.; Jalon, A.M.

doi:10.1109/asms-spsc.2010.5586849

Cited by 9 publications

(10 citation statements)

References 4 publications

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“…Co-channel beams of the same colour share a 36MHz bandwidth that is used to transmit in an MF-TDMA fashion, using 22 carrier frequencies and a 69.632 ms SuperFrame divided in 30 timeslots. These assumptions have been taken from the AmerHis-REDSAT family of DVB-RCS regenerative satellite systems [4], [6], [7] and from the [8] project. The system parameters used are summarized in Table 2:…”

Section: Interferences Contribution In Mf-tdmamentioning

confidence: 99%

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MF-TDMA Scheduling Algorithm for Multi-Spot Beam Satellite Systems Based on Co-Channel Interference Evaluation

2019

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Very high throughput satellites (VHTS) are the new trend in satellite communications systems in order to satisfy the increasing demand for both higher throughput and ubiquitous connectivity. Implementing an IP interactive network over a VHTS would enable the satellite to compete with terrestrial networks by offering ubiquitous added value services for end-user traffic. Even so, the simulations presented in this paper show that a 30% of throughput can be lost due to co-channel interferences. In existing interactive satellite networks such as REDSAT or AmerHis, the return uplink transmissions are inherently benefited from the MF-TDMA scheduling to mitigate the co-channel interferences present in VHTS. In such networks dynamic resource assignation (DAMA) is executed at each SuperFrame period (<100 ms). Therefore, any feasible optimization on the scheduling shall be performed in real time. In this paper, two parallel problems are faced at the same time: co-channel interference mitigation and real time scheduling. In particular, two novel interference-aware scheduling algorithms for a DVB-RCS2 return uplink are presented. Despite other previous works, the proposed algorithms are designed on the basis to be executed in real time on a fixed SuperFrame period basis. The performance assessment of the proposed algorithms is carried out through system-level simulations based on realistic satellite scenarios and interactive traffic models using DAMA in real time.

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Section: Interferences Contribution In Mf-tdmamentioning

confidence: 99%

“…The work presented in this paper is focused in minimizing the interference effects on interactive satellite networks like AmerHis or REDSAT [4]. In such innovative systems dynamic resource assignation is used (DAMA) [5] for the user services provision at real time.…”

Section: Introductionmentioning

confidence: 99%

MF-TDMA Scheduling Algorithm for Multi-Spot Beam Satellite Systems Based on Co-Channel Interference Evaluation

2019

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“…The AMERHIS [4][5][6] [7] system is a family of solutions of broadband satellite multimedia communication systems using regenerative OBP. This OBP provides on board signal regeneration and multi beam cross connectivity at packet level based on European DVB standards for uplink and downlink signals (DVB-RCS, DVB-S and DVB-S2).…”

Section: Review Of Existing Digital On-board Processing Solutionsmentioning

confidence: 99%

Future Opportunities for Next Generation OBP enhanced Satellite Payloads

Garcia¹,

Bejarano²,

Miguel³

et al. 2013

31st AIAA International Communications Satellite Systems Conference

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The satellite communications industry needs to find innovative solutions and flexible technologies to fiercely survive to an always evolving satellite services communications market. Payloads built with On Board Processing (OBP) technologies are able to face high and flexible capacity needs combined with complex integrated communication user scenarios to allow multi beam and frequency reuse, switching and dynamic routing based connectivity, signal regeneration, and flexible power allocation and coverage. Enhanced and advanced satellite payloads require these characteristics to guarantee the flexible adjustment to near future market needs. This paper provides a critical review of OBP developed products for several types of communication scenarios. The result is a summary of the main benefits and drawbacks of OBP technologies, pointing out the first hints of OBP technological roadmap for the years to come. Nomenclature

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“…In the world of convergent multimedia communications and Next Generation Networks, satellite systems play an important role as access networks [1][2][3] due to their capability of providing global coverage, and recent research works [4][5][6] are pushing further the limits of this technology. However, the modern end user wants to access multimedia, real-time, and interactive services, demanding increasing amounts of bandwidth, through satellite systems, and with strong quality-of-service (QoS) requirements [7].…”

Section: Introductionmentioning

confidence: 99%

Innovative DAMA algorithm for multimedia DVB-RCS system

Albiol

Aguiar

Baladrón

et al. 2013

J Wireless Com Network

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Satellite is often used as an access network in the Next Generation Networks landscape, where multimedia and real-time services are supported by return channels. However, these satellite return channels are a very limited resource with many terminal stations competing for its use, making its efficient assignation one of the key problems to solve in order to increase network performance. This article presents an innovative implementation of the resource allocation mechanism demand assigned multiple access (DAMA) applied to satellite return channel assignment, which provides support for dynamic allocation and quality-of-service. This resource allocation mechanism has been validated with the special purpose advanced Internet network emulator, using the test lab implementation to optimize traffic mapping and queue parameters directly in the field. The numerical results for the different test cases considered are presented, showing that the DAMA algorithm provided is an efficient way of assigning resources, and also helping in the comparison of the different capacity request mechanisms described in the standard.

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AmerHis next generation global IP services in the space

Cited by 9 publications

References 4 publications

MF-TDMA Scheduling Algorithm for Multi-Spot Beam Satellite Systems Based on Co-Channel Interference Evaluation

MF-TDMA Scheduling Algorithm for Multi-Spot Beam Satellite Systems Based on Co-Channel Interference Evaluation

Future Opportunities for Next Generation OBP enhanced Satellite Payloads

Innovative DAMA algorithm for multimedia DVB-RCS system

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