PLC-RF无线传输网络中的能效最优设计方法

doi:10.11959/j.issn.1000-0801.2023100

电信科学 ›› 2023, Vol. 39 ›› Issue (4): 111-119.doi: 10.11959/j.issn.1000-0801.2023100

PLC-RF无线传输网络中的能效最优设计方法

蒋跃宇¹, 承昊新¹, 王康¹, 戴文骏¹, 刘笑宇²

¹ 国网常州供电公司信息通信分公司，江苏常州 213000
² 南京邮电大学通信与信息工程学院，江苏南京 210003

修回日期:2023-04-15 出版日期:2023-04-20 发布日期:2023-04-01
作者简介:蒋跃宇（1979- ），男，国网常州供电公司信息通信分公司高级工程师，主要研究方向为电力系统通信
承昊新（1988- ），女，国网常州供电公司信息通信分公司高级工程师，主要研究方向电力系统通信
王康（1994- ），男，国网常州供电公司信息通信分公司高级工程师，主要研究方向为电力系统通信
戴文骏（1990- ），男，国网常州供电公司信息通信分公司高级工程师，主要研究方向为电力系统通信
刘笑宇（1996- ），男，南京邮电大学博士生，主要研究方向为电力系统通信

Design method of energy efficiency optimization in PLC-RF wireless transmission networks

Yueyu JIANG¹, Haoxin CHENG¹, Kang WANG¹, Wenjun DAI¹, Xiaoyu LIU²

¹ Information and Communication Branch of State Grid Changzhou Power Supply Company, Changzhou 213000, China
² School of Communication and Information Engineering, Nanjing University of Posts and Telecommunication, Nanjing 210003, China

Revised:2023-04-15 Online:2023-04-20 Published:2023-04-01

摘要/Abstract

摘要：

针对电力线通信（PLC）和射频（RF）无线通信混合传输的室内通信场景，提出了一种基于角度信息的信道状态信息（AI-CSI）的能效优先传输方案。首先，Wi-Fi无线网络和PLC网络分别作为主网络和次级网络，并且采用认知无线电技术来提高频谱效率的情况下，建立次级网络总能效最大化为目标函数的优化问题。其次，为了求解该问题，通过基于AI-CSI的迫零波束成形方法，获得波束成形权矢量，并进一步提出Dinkelbach与拉格朗日乘子法相结合的优化方法，进行最优的功率分配。最后，计算机仿真结果不仅验证了所提方案的有效性和优越性，而且分析了中继天线数和用户个数等典型参数对系统能效带来的影响，从而为实际系统设计提供了参考和依据。

关键词: 电力线通信, 射频无线通信, 认知无线电, 统计信道信息, 能量效率

Abstract:

An energy efficiency optimization transmission scheme using angular information-based channel state information (AI-CSI) was proposed for indoor communications, which integrated the power line communication (PLC) with radio frequency (RF) wireless communication.Specifically, by considering that the Wi-Fi wireless network and the PLC network were the primary and secondary networks, an optimization problem was established to maximize the total energy efficiency of the secondary network.Then, in order to solve the problem, the beam forming weight vector was obtained by using zero-forcing method based on AI-CSI, and an optimization algorithm joint Dinkelbach with Lagrange multiplier was further presented to achieve the optimal power allocation.Finally, computer simulations were given to verify the effectiveness and superiority of the proposed scheme.Besides, the influence of key parameters such as the number of employed antennas and served users was also analyzed.

Key words: power line communication, radio frequency wireless communication, cognitive radio, statistical channel state information, energy efficiency

中图分类号:

TN92

蒋跃宇, 承昊新, 王康, 戴文骏, 刘笑宇. PLC-RF无线传输网络中的能效最优设计方法[J]. 电信科学, 2023, 39(4): 111-119.

Yueyu JIANG, Haoxin CHENG, Kang WANG, Wenjun DAI, Xiaoyu LIU. Design method of energy efficiency optimization in PLC-RF wireless transmission networks[J]. Telecommunications Science, 2023, 39(4): 111-119.

图/表 8

图1

图2

表2

主要系统参数设置"

参数	数值
源节点发射功率P_S/dBm	40
PLC链路噪声能量比η_ab	15
脉冲噪声到达次数n_p	0.14
背景噪声功率 $σ_{b}^{2}$ /dBm	30
距离衰减因子P_L	1.5
DF门限Λ_th/dB	0.1
电路功耗P_c/dBm	30
中继发射功率P_T/dBm	15～55
瑞利衰落系数	ρ～CN(0,1)
主用户干扰功率门限I_th/dBm	30

表2

图3

图4

图5

图6

图7

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PLC-RF无线传输网络中的能效最优设计方法

Design method of energy efficiency optimization in PLC-RF wireless transmission networks

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