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2014 Optimization of Power Allocation for a Multibeam Satellite Communication System with Interbeam Interference
Heng Wang, Aijun Liu, Xiaofei Pan, Jiong Li
J. Appl. Math. 2014(SI08): 1-8 (2014). DOI: 10.1155/2014/469437

Abstract

In multibeam satellite communication systems it is important to improve the utilization efficiency of the power resources, due to the scarcity of satellite power resources. The interbeam interference between the beams must be considered in the power allocation; therefore, it is important to optimize the power allocated to each beam in order to improve the total system performance. Initially the power allocation problem is formulated as a nonlinear optimization, considering a compromise between the maximization of total system capacity and the fairness of the power allocation amongst the beams. A dynamic power allocation algorithm based on duality theory is then proposed to obtain a locally optimal solution for the optimization problem. Compared with traditional power allocation algorithms, this proposed dynamic power allocation algorithm improves the fairness of the power allocation amongst the beams, and, in addition, the proposed algorithm also increases the total system capacity in certain scenarios.

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Heng Wang. Aijun Liu. Xiaofei Pan. Jiong Li. "Optimization of Power Allocation for a Multibeam Satellite Communication System with Interbeam Interference." J. Appl. Math. 2014 (SI08) 1 - 8, 2014. https://doi.org/10.1155/2014/469437

Information

Published: 2014
First available in Project Euclid: 26 March 2014

Digital Object Identifier: 10.1155/2014/469437

Rights: Copyright © 2014 Hindawi

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Vol.2014 • No. SI08 • 2014
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