基于最大化能效的海上中继通信频谱分配算法

doi:10.12305/j.issn.1001-506X.2022.08.32

Abstract

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.

Key words: energy efficiency, Rician fading channel, distributed pricing algorithm, sub gradient method

CLC Number:

TN92

Lin SUN, Zhongyang MAO, Jiafang KANG, Lei ZHANG. Energy efficiency maximization-based spectrum allocation algorithm for maritime relay communication system[J]. Systems Engineering and Electronics, 2022, 44(8): 2661-2667.

Figures/Tables 10

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References 15

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算法	计算式
本文算法	N_i-max(4M+5)+1 240N_i+27
对照算法	(4S+10)M+4S+2N_i

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Energy efficiency maximization-based spectrum allocation algorithm for maritime relay communication system

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