综合优化多种网络管理和宏观细胞难以捉摸的作用 (Integrated optimization of heterogeneous-network management and the elusive role of macrocells)

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We consider heterogeneous wireless networks in the physical interference model and introduce a new formulation of the optimization problem underlying their management. This formulation targets the minimization of power consumption by integrating base-station activation and many-to-many associations into the same mixed-integer nonlinear programming (MINLP) problem. We also introduce HetNetGA, a genetic algorithm tailored to solving the MINLP problem without further smoothing or approximation. We give computational results in scenarios involving both macrocells and picocells. Some results align well with what is expected, but others are unexpected, pointing essentially to the need to better understand the role of macrocells in such networks.

翻译：我们考虑在物理干扰模型中采用多种无线网络,并引入新的优化问题公式,作为其管理的基础。这一公式的目标是通过将基站激活和许多到许多协会纳入同一混合整数非线性程序(MINLP)问题,最大限度地减少电力消耗。我们还引入了HetNetGA,这是一个基因算法,专门用来解决MINLP问题,而不会进一步平滑或近似。我们在涉及大型细胞和微细胞的情景中给出计算结果。有些结果与预期一致,但有些结果出乎意料,基本表明需要更好地了解大型细胞在此类网络中的作用。