Soft Frequency Reuse of Joint LTE and eMTC Based on Improved Genetic Algorithm
Enhanced machine-type (eMTC) communications for cellular Internet of Things (IoT) are expected to make up the shortcomings of traditional LTE technologies. In this paper, LTE and eMTC are jointly used in the cell, and the frequency is efficiently used through soft frequency reuse (SFR). After that, a 0-1 knapsack problem with the purpose of maximize access ratio was constructed. We construct an improved genetic algorithm to solve the problem. The simulation results show that the joint LTE and eMTC methods increase the access ratio by 8%, and the improved genetic algorithm also has a mostly 5% improvement compared to the traditional dynamic programming method.
KeywordsSoft frequency reuse eMTC Genetic algorithm 0-1 knapsack problem
This study is supported by 2017 state grid science and technology project “Research and Application for Adaption of Power Business based on LTE Wireless Private Network”.
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