Subset Optimization of Adaptive Coding and Modulation Schemes for Broadband Satellite Systems

被引：0
|
作者：
Boussemart, Vincent [1 ]
Brandt, Hartmut [1 ]
Berioli, Matteo [1 ]
机构：
[1] German Aerosp Ctr DLR, Inst Commun & Nav, D-82234 Oberpfaffenhofen, Wessling, Germany
来源：
2010 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS | 2010年
关键词：
ACM; DVB-RCS; DVB-S2; ModCod; Simulator;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The number of Coding and Modulation Schemes suggested for the two standards DVB-S2 and DVB-RCS (in its "advanced" version) is overdimensioned; a subset of schemes can be used and this only reduces the overall system performance negligibly. This paper presents the investigations performed on this rain fading mitigation technique, called Adaptive Coding and Modulation (ACM), supported by the DVB-S2 standard and shows how the sets of modulation and coding schemes, considered in the forward and in the return-links, can be changed to reduce terminal complexity and how this affects the overall system performance. It is shown that, by a careful selection of the ACM schemes, already with less than one fourth (7 or 5 out of 28) of the total number of schemes it is possible to get performance close to the optimum, but with a much lower terminal complexity.
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