论文标题
MMWave Mu-Massive-Mimo-OfdM中的节能吞吐量最大化：基于遗传算法的资源分配
Energy-Efficient Throughput Maximization in mmWave MU-Massive-MIMO-OFDM: Genetic Algorithm based Resource Allocation
论文作者
论文摘要
本文使用基于正交频施加（OFDM）的透射率开发了一种基于遗传算法的资源分配（GA-RA）技术，用于在多用户大量多输入多输出（MU-MMIMO）系统中最大化的能源效率。我们采用具有三个阶段的混合编码（HP）体系结构：（i）射频（RF）波束形式，（ii）基带（bb）预编码器，（iii）资源分配（RA）块。首先，通过缓慢的时间变化角度（AOD）信息为所有子载波构建一个单一的RF波束形块。为了提高能源效率，RF BeamFormer旨在通过较少的RF链来降低硬件成本/复杂性和总功耗。之后，为每个子载波的不同BB预编码器和RA块设计降低的有效通道状态信息（CSI）。 BB预编码器是通过正规化的零强度技术开发的。最后，RA块是通过建议的GA-RA技术来构建的，以通过分配功率和子载波资源来最大化吞吐量。说明性结果表明，与等于RA（EQ-RA）和基于粒子群优化的RA（PSO-RA）相比，MU-MIMO-OFDM系统中的吞吐量通过所提出的GA-RA技术大大增强。此外，绩效增益比随着子载体数量的增加而增加，尤其是对于低传输功能。
This paper develops a new genetic algorithm based resource allocation (GA-RA) technique for energy-efficient throughout maximization in multi-user massive multiple-input multiple-output (MU-mMIMO) systems using orthogonal frequency division multiplexing (OFDM) based transmission. We employ a hybrid precoding (HP) architecture with three stages: (i) radio frequency (RF) beamformer, (ii) baseband (BB) precoder, (iii) resource allocation (RA) block. First, a single RF beamformer block is built for all subcarriers via the slow time-varying angle-of-departure (AoD) information. For enhancing the energy efficiency, the RF beamformer aims to reduce the hardware cost/complexity and total power consumption via a low number of RF chains. Afterwards, the reduced-size effective channel state information (CSI) is utilized in the design of a distinct BB precoder and RA block for each subcarrier. The BB precoder is developed via regularized zero-forcing technique. Finally, the RA block is built via the proposed GA-RA technique for throughput maximization by allocating the power and subcarrier resources. The illustrative results show that the throughput performance in the MU-mMIMO-OFDM systems is greatly enhanced via the proposed GA-RA technique compared to both equal RA (EQ-RA) and particle swarm optimization based RA (PSO-RA). Moreover, the performance gain ratio increases with the increasing number of subcarriers, particularly for low transmission powers.
