Double-layer heterogeneous network spectrum allocation method based on quantum monarch butterfly optimization mechanism

Abstract

The invention provides a double-layer heterogeneous network spectrum allocation method based on a quantum monarch butterfly optimization mechanism. The method comprises the steps: establishing a double-layer heterogeneous network system model; obtaining an integer coding position of monarch butterflies; calculating fitness values of all the monarch butterflies to obtain a globally optimal quantumposition and a globally optimal position corresponding to the globally optimal quantum position; sorting the monarch butterfly population, and dividing the monarch butterfly population into two monarch butterfly sub-populations; updating the transition quantum position of each monarch butterfly individual in the sub-populations; combining the two newly generated sub-populations into a new transition population, updating the quantum position of the monarch butterfly population, calculating the fitness value of the quantum monarch butterflies, and updating the global optimal quantum position andthe global optimal position; whether the maximum iteration frequency is reached or not is judged, if the maximum iteration frequency is reached, outputting a global optimal quantum position and a global optimal position, wherein the global optimal position is the optimal scheme of spectrum allocation; and otherwise, adding 1 to the number of iterations, and returning to carry out a new round of iteration. According to the invention, the spectrum allocation problem of the integer discrete optimization double-layer heterogeneous network is solved.

Description

technical field [0001] The present invention relates to a Macro-Femtocell double-layer heterogeneous cellular network spectrum allocation method, in particular to a double-layer heterogeneous network spectrum allocation method based on a quantum monarch butterfly optimization mechanism, belonging to the field of wireless communication. Background technique [0002] Femtocell is a femtocell with advantages of low cost, low power consumption, flexible deployment, and closer distance to user terminals. Deploying femtocell in Macrocell to form a Macro-Femtocell two-layer heterogeneous network can effectively improve indoor Signal quality, thereby improving the overall throughput of the network. However, due to the complex structure of the heterogeneous network, the coverage areas of the macro base station and the femtocell overlap each other, and there will be complex same-layer interference and cross-layer interference in the heterogeneous network, which will lead to the inabil...

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Problems solved by technology

[0004]The purpose of the present invention is to solve the problem that the existing two-layer heterogeneous network spectrum allocation method is difficult to achieve maximum throughput while ensuring fairness and user satisfaction. And the problem of high computational complexity, and design a spectrum allocation method of discrete quantum monarch butterfly optimization mechanism

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