Dynamic subcarrier allocation of PLC channel based on adaptive genetic algorithm
DOI:10.7667/PSPC20191213
Key Words:PLC channel  channel model  maximize rate  genetic algorithm  subcarrier allocation  channel capacity
Author NameAffiliation
YANG Rong School of Electrical &
Electronic Engineering, North China Electric Power University, Baoding 071003, China 
CAO Wangbin School of Electrical &
Electronic Engineering, North China Electric Power University, Baoding 071003, China 
YIN Chengqun School of Electrical &
Electronic Engineering, North China Electric Power University, Baoding 071003, China 
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Abstract:In order to improve the transmission rate of broadband Power Line Communication (PLC), a dynamic subcarrier allocation algorithm based on rate maximization (RA) principle is proposed under the condition of low-voltage broadband power line channel in 2~100 MHz. The algorithm exploits the better global search–capability of genetic algorithm and combines the genetic algorithm and water injection algorithm to adaptively allocate subcarriers of Orthogonal Frequency Division Multiplexing (OFDM) system. In the new algorithm, it first cross-operates the individuals in the population to obtain two new progeny populations, and reproduces and mutates the obtained progeny populations. Compared with the adaptive genetic algorithm, simulation results show that the whole PLC system performance is improved, the system transmission rate is faster, and the channel capacity becomes larger. This work is supported by Science and Technology Project of Hebei Province (No. 17211704D) and Fundamental Research Funds for the Central Universities (No. 2018MS096).
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