System Capacity Optimization in Time and Frequency for Multibeam Multi-media Satellite Systems

被引：32

作者：

Alberti, X. ^{[1
]}

Cebrian, J. M. ^{[1
]}

Del Bianco, A. ^{[2
]}

Katona, Z. ^{[2
]}

Lei, J. ^{[3
]}

Vazquez-Castro, M. A. ^{[3
]}

Zanus, A. ^{[4
]}

Gilbert, L. ^{[4
]}

Alagha, N. ^{[5
]}

机构：

[1] INDRA Espacio, Seville, Spain

[2] Deutsch Zentrum Luft & Raumfahrt eV DLR, Cologne, Germany

[3] Univ Autonoma Barcelona, Barcelona, Spain

[4] MDA Space Missions, Montreal, PQ, Canada

[5] ESA, Estec, Noordwijk, Netherlands

来源：

2010 5TH ADVANCED SATELLITE MULTIMEDIA SYSTEMS CONFERENCE AND THE 11TH SIGNAL PROCESSING FOR SPACE COMMUNICATIONS WORKSHOP (ASMS/SPSC 2010) | 2010年

关键词：

Multibeam Satellite; Beam Hopping (BH); Resource Management; ALLOCATION; POWER;

D O I：

10.1109/ASMS-SPSC.2010.5586902

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Current Ka-band, multi-media satellite systems employ spot beam technology to accommodate a wide range of multi-media type services. These satellites typically employ uniform allocation of RF power and bandwidth to spot beams. Since the traffic distribution tends to be highly asymmetrical and with a high degree of uncertainty, the satellite does not have sufficient flexibility to satisfy the traffic request on a beam per beam basis in an efficient manner. This paper investigates two new candidate multibeam system transmission schemes, namely, the Flexible and Beam-Hoping (BH) scheme, focusing on the forward link. We formulate the system-level optimization and propose an iterative algorithm that always converges given the constraints posed by the payload. The algorithm feeds a detailed system-level simulator which takes into account Ka-band channel and physical layer statistics. Our results show that both candidates outperform the conventional system in terms of both adaptation throughput matching to traffic demands and a more efficient use of available resources. The results were obtained during a project funded by the European Space Agency, with title " Beam Hopping techniques for multibeam satellite systems".

引用

页码：226 / 233

页数：8

共 9 条

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Barcelo J.E., 2009, IEEE GLOB C IN PRESS

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