A Highly Efficient DAMA Algorithm for Making Maximum Use of both Satellite Transponder Bandwidth and Transmission Power
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概要
- 論文の詳細を見る
This paper proposes a novel satellite channel allocation algorithm for a demand assigned multiple access (DAMA) controller. In satellite communication systems, the channels' total bandwidth and total power are limited by the satellite's transponder bandwidth and transmission power (satellite resources). Our algorithm is based on multi-carrier transmission and adaptive modulation methods. It optimizes channel elements such as the number of sub-carriers, modulation level, and forward error correction (FEC) coding rate. As a result, the satellite's transponder bandwidth and transmission power can be simultaneously used to the maximum and the overall system capacity, i.e., total transmission bit rate, will increase. Simulation results show that our algorithm increases the overall system capacity by 1.3 times compared with the conventional fixed modulation algorithm.
- The Institute of Electronics, Information and Communication Engineersの論文
- 2012-08-01
著者
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Nishiyama Hiroki
The Graduate School of Agricultural and Life Sciences, University of Tokyo.
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KATO Nei
the Graduate School of Information Sciences, Tohoku University
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NAKAHIRA Katsuya
the NTT Access Network Service Systems Laboratories, NTT Corporation
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SUGIYAMA Takatoshi
the NTT Access Network Service Systems Laboratories, NTT Corporation
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