Frequency allocation in small cell-based green heterogeneous mobile networks is a demanding research domain nowadays. Femtocells are the essential components of small cell networks. In this paper, we propose a low power micro-femtocell network using the master–slave algorithm. In the master–slave algorithm, the master node allocates work to the slave nodes. When a slave ends its task given by a master node, it informs the master node, and it is being assigned a new workload. Slave nodes do not communicate with each other. In our approach, the microcell is divided into three sectors, and each sector is further categorized into three regions: inner region, outer region, and most-outer region. Femtocells are allocated in these three regions. According to the duty cycle, several femtocells are chosen as master femtocells. The rest of the femtocells are assigned under the supervision of the master femtocells. These femtocells are referred to as slave femtocells. The master femtocells communicate with the microcell, and the slave femtocells communicate with the corresponding master femtocell. Frequency allocation for this micro-femtocell network is proposed based on Fractional Frequency Reuse (FFR). The power consumption, signal-to-interference-plus-noise ratio (SINR), and spectral efficiency for the proposed network are calculated. The simulation results exemplify that the proposed scheme reduces the power consumption of the network by approximately 44%–80% than the conventional heterogeneous network. The simulation results also demonstrate that the proposed network has better SINR and spectral efficiency than the existing micro-femtocell network. For experimental analysis, vector signal generator (VSG) and vector signal analyzer (VSA) are used. The experimental results also show that the proposed network is greener compared to the existing micro-femtocell network.

如今，基于小型小区的绿色异构移动网络中的频率分配是一个要求很高的研究领域。毫微微小区是小型蜂窝网络的基本组成部分。在本文中，我们提出了一种使用主从算法的低功耗微型毫微微小区网络。在主从算法中，主节点将工作分配给从节点。当从属节点结束由主节点赋予的任务时，它会通知主节点，并为其分配新的工作负载。从节点不相互通信。在我们的方法中，微蜂窝分为三个扇区，每个扇区又分为三个区域：内部区域，外部区域和最外部区域。毫微微小区被分配在这三个区域中。根据占空比，几个毫微微小区被选作主毫微微小区。其余的毫微微小区在主毫微微小区的监督下进行分配。这些毫微微小区被称为从毫微微小区。主飞蜂窝与微蜂窝通信，从飞蜂窝与相应的主飞蜂窝通信。基于分数频率重用（FFR），提出了针对该微型毫微微小区网络的频率分配。计算了所提议网络的功耗，信号干扰加噪声比（SINR）和频谱效率。仿真结果表明，与传统的异构网络相比，该方案可将网络的功耗降低约44％–80％。仿真结果还表明，所提出的网络比现有的微型毫微微小区网络具有更好的SINR和频谱效率。为了进行实验分析，使用了矢量信号发生器（VSG）和矢量信号分析仪（VSA）。实验结果还表明，与现有的微型毫微微小区网络相比，拟议的网络更环保。