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- Title
Energy efficiency maximization-based spectrum allocation algorithm for maritime relay communication system.
- Authors
SUN Lin; MAO Zhongyang; KANG Jiafang; ZHANG Lei
- Abstract
In order to improve the overall energy efficiency of multi-hop relaying networks for the formation of unmanned surface vessel, and reduce the possibility of outage in communication, a distributed multi-hop relaying spectrum allocation algorithm is put forward based on maximizing energy efficiency. Firstly, for the sake of making sure that the possibility of inter node communication interruptions is kept within the threshold, an analysis on Rician fading channel is conducted to calculate the minimum transmitting power needed in networks. Then, the number of maximum subcarriers is calculated and the asynchronous distributed pricing algorithm is applied to select the candidate subcarriers group. After that, the sub gradient method is used, by solving KKT conditions, to select the subcarriers from the candidate subcarrier group and allocate the power, therefore, a sub optimal solution of the optimal allocation is obtained. Finally, the effectiveness of the proposed algorithm is verified by the simulation analysis on the reliability and energy efficiency of networks.
- Subjects
SPECTRUM allocation; ENERGY consumption; MARINE communication; RICIAN channels; DISTRIBUTED algorithms; RAYLEIGH fading channels; TELECOMMUNICATION systems
- Publication
Systems Engineering & Electronics, 2022, Vol 44, Issue 8, p2661
- ISSN
1001-506X
- Publication type
Article
- DOI
10.12305/j.issn.1001-506X.2022.08.32