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基于过时CSI的认知NOMA-V2V系统性能研究

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北京邮电大学学报 2024年第3期47卷 24-29,35页

作者：梁晓林李健博曹旺斌徐建鹏赵雄文河北大学电子信息工程学院保定071002 华北电力大学河北省电力物联网技术重点实验室保定071003 华北电力大学电气与电子工程学院北京102206

基于几何信道模型,提出了一种适用于车对车(V2V)无线信道的过时信道状态信息(CSI)建模方法。针对V2V通信网络高速时变特性和资源利用率低的问题,研究了基于过时CSI和不完全串行干扰消除的认知非正交多址接入(NOMA)-V2V网络功率分配方案... 详细信息

基于几何信道模型,提出了一种适用于车对车(V2V)无线信道的过时信道状态信息(CSI)建模方法。针对V2V通信网络高速时变特性和资源利用率低的问题,研究了基于过时CSI和不完全串行干扰消除的认知非正交多址接入(NOMA)-V2V网络功率分配方案。基于几何三维双柱信道模型研究过时CSI对认知NOMA-V2V通信网络的性能影响,并分析了系统的吞吐量区域。满足主用户可达速率最大、次用户可达速率最大和自适应满足主用户和次用户可达速率等3种约束条件,提出相应的功率分配方案。实验结果表明,所提方案与已有功率分配方案相比有更高的吞吐量和更好的中断性能。

关键词：非正交多址接入车对车通信认知无线电过时信道状态信息不完全串行干扰消除功率分配

Modeling and realization of mobile-to-mobile wideband MIMO channels based on the geometrical multi-ring and multi-ellipse stochastic scattering model

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The Journal of China Universities of Posts and Telecommunications 2018年第5期25卷 39-48页

作者： Liang Xiaolin Cao Wangbin zhao xiongwen School of Electronic and Information Engineering Hebei UniversityBaoding 071002 China School of Electrical and Electronic Engineering North China Electric Power University Baoding 071000 China School of Electrical and Electronic Engineering North China Electric Power University Beijing 102206 China

A geometry-based stochastic scattering model （GBSSM） based on geometrical multiple rings and ellipses is proposed for wideband multiple-input multiple-output （MIMO） mobile-to-mobile （M2M） fading channels. The proposed GBSSM is deployed with cross-polarized antennas and can be applied for the line-of-sight （LOS） and non- LOS （NLOS） scenarios by considering the single-bounced （SB） and double-bounced （DB） components. The channel realization is much more straightforward and concise to study the channel characteristics compared with the too complicated analytical solutions available so far. Based on the proposed GBSSM and realized channel, the channel characteristics and parameters at 2 GHz and 5 GHz with 100 MHz bandwidth are further investigated. The results can be used in the link and system level simulations in M2M radio systems.

关键词： cross-polarized antennas mobile-to-mobile multiple-input multiple-output multl-rlng and multi-ellipse wideband channels

A Precoding Scheme to Reduce the Effect of Channel Correlation for MIMO-PLC System

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China Communications 2023年第2期20卷 216-225页

作者： Wangbin Cao Hui Kang Xiaolin Liang Zhiyuan Xie xiongwen zhao School of Electrical and Electronic Engineering North China Electric Power UniversityBaoding 071000/Beijing 102206China School of Electronic and Information Engineering Hebei UniversityBaoding 071002China Hebei Key Laboratory of Power Internet of Things Technology(North China Electric Power University) Baoding 071003China

MIMO technique can provide higher information throughput and transmission reliability for the PLC ***,the MIMO-PLC system based on three-conductor cable has a high correlation among its *** multiplexing technology will be affected by the spatial correlation between MIMO-PLC *** reduce the system bit error rate caused by MIMO-PLC correlation among sub-channels,this paper proposed a phase rotation precoding scheme for the 2×2 closed-loop MIMO-PLC *** to the channel transfer function of high correlation MIMO-PLC system,the phase rotation precoding matrix F is calculated,and the transmission signal matrix S is modulated with the F,the code distance at the receiving point with smallest code distance is increased by phase *** results show that the scheme can effectively reduce the bit error rate of the 2×2 MIMO-PLC system based on ML detection,and significantly improve the system performance.

关键词： carrier transmission on power lines telecommunication cables error correction precoding

Fairness optimization and power allocation in cognitive NOMA/OMA V2V network with imperfect SIC

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The Journal of China Universities of Posts and Telecommunications 2023年第6期30卷 68-81页

作者： Liang Xiaolin Liu Qianlong Cao Wangbin Liu Shuaiqi zhao Shuhuan zhao xiongwen College of Electronic and Information Engineering Hebei UniversityBaoding 071002China Hebei Key Laboratory of Power Internet of Things Technology North China Electric Power UniversityBaoding 071003China School of Electrical and Electronic Engineering North China Electric Power UniversityBaoding 071003China School of Electrical and Electronic Engineering North China Electric Power UniversityBeijing 102206China

In order to improve the reliability and resource utilization efficiency of vehicle-to-vehicle(V2V)communication system,in this paper,the fairness optimization and power allocation for the cognitive V2V network that takes into account the realistic three-dimensional(3D)channel are ***-scale and small-scale fading are considered in the proposed channel *** adaptive non-orthogonal multiple access(NOMA)/orthogonal multiple access(OMA)scheme is proposed to reduce the complexity of successive-interference-cancellation(SIC)in decoding and improve spectrum ***,a fairness index that takes into account each user's requirements is proposed to indicate the optimal point *** the imperfect SIC,the optimization problem of maximizing user fairness is ***,a subgradient descent method is proposed to solve the optimization problem with customizable *** the computational complexity of the proposed method is *** achievable rate,outage probability and user fairness are *** results show that the proposed adaptive NOMA/OMA(A-NOMA/OMA)outperforms both NOMA and *** simulation results are compared with validated analysis to confirm the theoretical analysis.

关键词： sadaptive non-orthogonal multiple access(NOMA)/orthogonal multiple access(OMA) user fairness power allocation imperfect successive-interference-cancellation(SIC) vehicle-to-vehicle(V2V)communication

Performance analysis of different coding schemes for wideband vehicle-to-vehicle MIMO systems

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The Journal of China Universities of Posts and Telecommunications 2023年第6期30卷 89-98页

作者： Liang Xiaolin Rong Zhanyi Cao Wangbin Liu Shuaiqi zhao xiongwen College of Electronic and Information Engineering Hebei UniversityBaoding 071002China Hebei Key Laboratory of Power Internet of Things Technology North China Electric Power UniversityBaoding 071003China School of Electrical and Electronic Engineering North China Electric Power UniversityBaoding 071003China School of Electrical and Electronic Engineering North China Electric Power UniversityBeijing 102206China

The signal is subjected to lots of interferences in vehicle-to-vehicle(V2V)channel propagation,resulting in receiving error ***-dimensional(2D)and three-dimensional(3D)geometrical channel models are used to depict the wideband V2V multiple-input multiple-output(MIMO)*** the channel model,Turbo code and low-density parity-check(LDPC)code are investigated for wideband V2V MIMO system,and the encoding and the decoding schemes are *** bit error rate(BER),channel capacity and outage probability of wideband V2V MIMO system using Turbo code and LDPC code are analyzed at different typical *** results show that the performance of wideband V2V MIMO system using Turbo code outperform that using LDPC *** performance is affected by transmitting and receiving speeds with the same coding *** the channel capacity of the 3D channel is larger than that of 2D channel.

关键词： geometrical channel models Turbo code low-density parity-check(LDPC)code vehicle-to-vehicle(V2V)communication wideband channels

A 3D Geometry-Based Scattering Model for Vehicleto-Vehicle Wideband MIMO Relay-Based Cooperative Channels

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China Communications 2016年第10期13卷 1-10页

作者： Xiaolin Liang xiongwen zhao Shu Li Qi Wang Wenbing Lu School of Electrical and Electronic Engineering North China Electric Power University National Mobile Communications Research Laboratory Southeast University

In this paper, a three-dimensional(3D) geometry- based stochastic scattering model(GBSSM) for wideband multi-input multi-output(MIMO) vehicle-to-vehicle(V2V) relay-based cooperative fading channel based on geometrical three-cylinder is proposed. Non-line-of-sight(NLOS) propagation condition is assumed in amplify-and-forward(AF) cooperative networks from the source mobile station(S) to the destination mobile station(D) via the mobile relay station(R). We extend the proposed narrowband model to wideband and also introduce the carrier frequency and bandwidth into the model. To avoid complicated procedure in deriving the analytical expressions of the channel parameters and functions, the channel is realized first. By using the realized channel matrix, the channel properties are further investigated.

关键词： geometry-based scattering model MIMO relay-based cooperative communication vehicle-to-vehicle(V2V) wideband

Neural Network and GBSM Based Time-Varying and Stochastic Channel Modeling for 5G Millimeter Wave Communications

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China Communications 2019年第6期16卷 80-90页

作者： xiongwen zhao Fei Du Suiyan Geng Ningyao Sun Yu Zhang Zihao Fu Guangjian Wang School of Electrical and Electronic Engineering North China Electric Power UniversityBeijing 102206China Huawei Technologies Co.Ltd. Chengdu Research InstituteChengdu 611731China

In this work,a frame work for time-varying channel modeling and simulation is proposed by using neural network(NN)to overcome the shortcomings in geometry based stochastic model(GBSM)and simulation *** NN models are developed for modeling of path loss together with shadow fading(SF)and joint small scale channel *** NN models can predict path loss plus SF and small scale channel parameters accurately compared with measurement at 26 GHz performed in an outdoor *** time-varying path loss and small scale channel parameters generated by the NN models are proposed to replace the empirical path loss and channel parameter random numbers in GBSM-based framework to playback the measured channel and match with its ***,the sparse feature of clusters,delay and angular spread,channel capacity are investigated by a virtual array measurement at 28 GHz in a large waiting hall.

关键词： time-varying channel neural network cluster channel modeling virtual array measurement 5G

A Fuzzy Clustering Algorithm Based on Multipath Component Trajectory for Millimeter Wave Radio Channels

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China Communications 2022年第11期19卷 99-111页

作者： Fei Du Yu Zhang Qingliang Li Xinyue Zhang Bo Zhu Zihao Fu Suiyan Geng xiongwen zhao State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources School of Electrical and Electronic EngineeringNorth China Electric Power UniversityBeijing 102206China Hebei Key Laboratory of Power Internet of Things Technology North China Electric Power UniversityBaoding 071003HebeiChina National Key Laboratory of Electromagnetic Environment China Research Institute of Radiowave PropagationQingdao 266107China

Time-varying channel modeling plays an important role for many applications in time-variant scenarios,while most clustering algorithms focus on static channels and cannot accurately model the channel time-evolution *** this paper,a fuzzy clustering algorithm based on multipath component(MPC)trajectory is ***,both the distance and velocity similarities of the MPCs in different snapshots are taken into account to track the MPC trajectory,in which the fuzzy scheme and a kernel function are used to calculate the distance and velocity similarities,***,a fuzzy MPC trajectory clustering algorithm is proposed to cluster the MPCs in multiple *** MPCs in a snapshot are clustered according to the membership,which is defined as the probability that a MPC belongs to different ***,time-varying channels at 28 GHz are simulated to validate the performance of our proposed *** results show that our proposed algorithm is able to accurately identify the clusters in time-varying channels compared with the existing clustering algorithms.

关键词： channel modeling time-varying clustering multiple path component MPC trajectory 6G

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自动化数字矿山膏体充填系统升级改造及应用

黄金 2024年第8期45卷 33-39,45页

作者：石教华毕成吴爱祥王勇尹东升赵雄文大冶有色金属有限责任公司铜绿山铜铁矿北京科技大学土木与资源工程学院北京科技大学金属矿山高效开采与安全教育部重点实验室

通过对铜绿山铜铁矿充填系统存在的矿山充填浓度低、给料井尾砂沉积、现有设备及仪表老旧、井下管道管阻大等问题进行分析,针对性提出了一套完整高效的自动化数字矿山充填系统升级改造方案。开展了改造成本估算和经济效益分析,得到改造... 详细信息

通过对铜绿山铜铁矿充填系统存在的矿山充填浓度低、给料井尾砂沉积、现有设备及仪表老旧、井下管道管阻大等问题进行分析,针对性提出了一套完整高效的自动化数字矿山充填系统升级改造方案。开展了改造成本估算和经济效益分析,得到改造成本约为1686万元,直接降低运营及胶结剂成本311.37万元/a,表明充填系统改造具有良好的经济效益。改造完成后开展了膏体充填工业试验,结果表明,改造后,铜绿山铜铁矿新膏体充填系统获得了良好的充填生产指标,充填浓度66%~69%,充填流量100~120 m^(3)/h,胶结剂单耗同比降低17.8%,显著节约了充填成本,提高了充填效率,改善了回采环境,保证了充填体质量,降低了堵管、爆管事故发生的风险,充填系统升级改造效果显著,为同类矿山提供了借鉴和参考的范例。

关键词：数字矿山膏体充填系统改造充填成本经济效益铜绿山铜铁矿

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