2021 IEEE/CIC International Conference on Communications in China (ICCC)最新文献

Enhanced Switch Design Supporting Dual Preemption Under Real-Time Ethernet 支持实时以太网双抢占的增强交换机设计

2021 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2021-07-28 DOI: 10.1109/iccc52777.2021.9580258

Nianshi Li, Kun Qian, Fengyuan Ren

引用次数: 0

Non-Coherent Grant-Free Massive IoT Access for mMTC: An Index Modulation Perspective mMTC的非相干无授权大规模物联网访问:索引调制视角

2021 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2021-07-28 DOI: 10.1109/iccc52777.2021.9580224

Lihua Qiao, Zhen Gao, Chen He, Zhenyu Xiao, Dezhi Zheng, Jun Zhang

{"title":"Non-Coherent Grant-Free Massive IoT Access for mMTC: An Index Modulation Perspective","authors":"Lihua Qiao, Zhen Gao, Chen He, Zhenyu Xiao, Dezhi Zheng, Jun Zhang","doi":"10.1109/iccc52777.2021.9580224","DOIUrl":"https://doi.org/10.1109/iccc52777.2021.9580224","url":null,"abstract":"The grant-free non-coherent index-modulation (NC-IM) has been recently emerging as an efficient embedded information transmission scheme for massive machine-type communications without channel state information, especially for cost-efficient Internet-of- Things (IoT) devices with small data packets. In this paper, we combine the grant-free NC-IM with OFDM for overcoming frequency-selective channel fading. Specifically, each device is allocated with a unique signature sequence codebook and active device transmits one of its signature sequences in each subcarrier. Information is embedded in the index of the transmitted signature sequence. By exploiting the structured sparsity of the equivalent channel matrix in the spatial domain and the common device activity in the subcarrier domain, we propose an efficient space-frequency joint activity and blind information detection algorithm with significantly improved device activity and embedded information detection performance. Simulation results verify the superiority of the proposed algorithm over state-of-the-art algorithms.","PeriodicalId":425118,"journal":{"name":"2021 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127142227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Zero-Forcing Precoder and Mode Modulation Aided Orbital Angular Momentum Multiplexing Transceiver for Underwater Transmissions 一种用于水下传输的零强迫预编码器和模式调制辅助轨道角动量复用收发器

2021 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2021-07-28 DOI: 10.1109/iccc52777.2021.9580404

Guixun Huang, Lin Zhang, Yan Feng

{"title":"A Zero-Forcing Precoder and Mode Modulation Aided Orbital Angular Momentum Multiplexing Transceiver for Underwater Transmissions","authors":"Guixun Huang, Lin Zhang, Yan Feng","doi":"10.1109/iccc52777.2021.9580404","DOIUrl":"https://doi.org/10.1109/iccc52777.2021.9580404","url":null,"abstract":"Orbital angular momentum (OAM) multiplexing can improve the transmission efficiency and provide higher bandwidth for underwater wireless optical communication (UWOC). However, the turbulence effect in ocean would induce the crosstalk between OAM modes, thereby leading to the reliability performance degradations. In this paper, we first utilize the mode modulation in the underwater OAM multiplexing system to deliver extra information bits. Then we add a zero-forcing (ZF) based precoder at the transmitter to mitigate the crosstalk effects to enhance the reliability performances. At the receiver, we propose a two-step maximum likelihood (TSML) detector which has lower complexity than that of the ML detection to recover the transmitted symbols. Moreover, we derive the bit error rate (BER) expressions for the proposed systems operating under perfect or imperfect channel state information (CSI) conditions, and the simulation results validate the theoretical analysis. Last but not the least, the simulated performances of the proposed system under different underwater channel parameters, e.g. the dissipation rate of temperature, the relative strength of temperature and salinity fluctuations and turbulence strengths are investigated and analyzed.","PeriodicalId":425118,"journal":{"name":"2021 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127292312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Optimum Deployment of UAV Relaying with Mobile Ground User System 基于移动地面用户系统的无人机中继优化部署

2021 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2021-07-28 DOI: 10.1109/iccc52777.2021.9580205

Luoyu Gao, Siye Wang, Zixuan Guan, Wenbo Xu

引用次数: 0

PAPR Reduction in F-OFDM systems combining SLM and ICF 结合SLM和ICF的F-OFDM系统的PAPR降低

2021 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2021-07-28 DOI: 10.1109/iccc52777.2021.9580323

Zelin Zhu, Mengru Wu, Weijing Qi, Qingyang Song, Lei Guo

引用次数: 0

Multi-access Edge Computing Offloading Method Oriented to Offshore Scenarios 面向离岸场景的多址边缘计算卸载方法

2021 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2021-07-28 DOI: 10.1109/iccc52777.2021.9580426

Ziyi Wang, Xin Su, Yuanxue Xin

{"title":"Multi-access Edge Computing Offloading Method Oriented to Offshore Scenarios","authors":"Ziyi Wang, Xin Su, Yuanxue Xin","doi":"10.1109/iccc52777.2021.9580426","DOIUrl":"https://doi.org/10.1109/iccc52777.2021.9580426","url":null,"abstract":"As an important part of the future maritime information intelligent network, the maritime observation monitoring sensor network can provide a variety of observation and monitoring applications. Multi-access edge computing (MAEC) can effectively guarantee a low-delay and high-reliability data transmission for maritime observation monitoring sensor networks and supply various related maritime applications. In this paper, a multi-access edge computing offloading method for offshore scenarios is proposed. A multi-user multi-hop unicast (MMU) offloading model is established for the limited resources of edge computing. Orthogonal frequency division multiple access (OFDMA) technology is used to alleviate the congestion of data unloading. At the same time, the pending tasks have a non-negligible queuing delay on some offloading nodes. In addition, the mixed integer nonlinear optimization problem is separated and the transmission power is effectively allocated by using sub-optimal method. The offloading decision is made by improving the traditional artificial fish swarm algorithm (AFSA). Simulation results show that, the proposed algorithm has a faster convergence speed and can reduce the network delay by nearly 19% comparing with the traditional scheme.","PeriodicalId":425118,"journal":{"name":"2021 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126106093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Joint Compensation of CFO and IQ Imbalance in OFDM Receiver: A Deep Learning Based Approach OFDM接收机CFO与IQ失衡的联合补偿:一种基于深度学习的方法

2021 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2021-07-28 DOI: 10.1109/iccc52777.2021.9580359

Siqi Liu, Tianyu Wang, Shaowei Wang

{"title":"Joint Compensation of CFO and IQ Imbalance in OFDM Receiver: A Deep Learning Based Approach","authors":"Siqi Liu, Tianyu Wang, Shaowei Wang","doi":"10.1109/iccc52777.2021.9580359","DOIUrl":"https://doi.org/10.1109/iccc52777.2021.9580359","url":null,"abstract":"Due to the technical and cost limitations, wireless systems suffer from various hardware impairments, including phase noise, power amplifier nonlinearity, carrier frequency offset and in-phase and quadrature-phase imbalance. These impairments can highly degrade the physical layer performance and are usually compensated separately by using model-based signal processing techniques. However, due to the high carrier frequency and large bandwidth of 5G new radio, the coupling effects between different impairments are highly aggravated, which greatly degrades the performance of individual compensation modules for different impairments. In this paper, we propose a deep learning-based method, which jointly addresses the hardware impairments directly from the received data. Specifically, we focus on carrier frequency offset and in-phase and quadrature-phase imbalance, and propose a deep neural network with multiple parallel subnets for joint compensation. Numerical results show that the proposed method outperforms the conventional method using separate compensation modules in practical signal-to-noise ratio regions, and the performance improvement further increases when the cyclic prefix length or the pilot length is limited.","PeriodicalId":425118,"journal":{"name":"2021 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115545512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Free-Space Optical Communication System Using Non-mode-Selective Photonic Lantern Based Receiver With Different Number of Single-Mode Fiber Cores 基于不同单模光纤芯数的非模式选择光子灯接收机的自由空间光通信系统

2021 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2021-07-28 DOI: 10.1109/iccc52777.2021.9580395

Renzhi Yuan, Zhifeng Wang, M. Peng

{"title":"Free-Space Optical Communication System Using Non-mode-Selective Photonic Lantern Based Receiver With Different Number of Single-Mode Fiber Cores","authors":"Renzhi Yuan, Zhifeng Wang, M. Peng","doi":"10.1109/iccc52777.2021.9580395","DOIUrl":"https://doi.org/10.1109/iccc52777.2021.9580395","url":null,"abstract":"The optical receiver based on non-mode-selective photonic lantern (NMS-PL) can be used to improve the communication performance of free-space optical communication (FSOC) systems, because the NMS-PL receiver can take advantages of the high coupling efficiency of multimode fiber (MMF) receivers and the high mixing efficiency of single-mode fiber (SMF) receivers. However, previous studies on the NMS-PL receiver did not consider the impact of the number of SMF cores of the NMS-PL on the bit-error rate (BER) performance under different power distributions of the NMS- PL. In this paper, we study the BER of the NMS-PL receiver using equal-gain combining (EGC) for FSOC systems under a log-normal turbulent fading channel with pointing errors. We derive both a lower bound and an approximated upper bound of the BER of the NMS-PL receiver using EGC. Numerical results show that the BER of NMS-PL receiver attains its minimum value when the number of SMF cores equals the number of guided modes of NMS-PL. Besides, numerical results also show that the power distribution of the NMS-PL has only limited influence on the BER of NMS-PL receiver using EGC when either strong turbulence or large pointing error is considered.","PeriodicalId":425118,"journal":{"name":"2021 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122604152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predictive Beam Tracking with Cooperative Sensing for Vehicle-to-Infrastructure Communications 基于协同传感的车辆与基础设施通信预测波束跟踪

2021 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2021-07-28 DOI: 10.1109/iccc52777.2021.9580311

Yuanhao Xu, Ying Guo, Cheng Li, Bin Xia, Zhiyong Chen

引用次数: 2

Camera Assisted Received Signal Strength Algorithm for Indoor Visible Light Positioning 室内可见光定位的相机辅助接收信号强度算法

2021 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2021-07-28 DOI: 10.1109/iccc52777.2021.9580305

Chengyang Li, Yang Yang, Lin Bai, Bei Yu, Caili Guo, Hailun Xia

{"title":"Camera Assisted Received Signal Strength Algorithm for Indoor Visible Light Positioning","authors":"Chengyang Li, Yang Yang, Lin Bai, Bei Yu, Caili Guo, Hailun Xia","doi":"10.1109/iccc52777.2021.9580305","DOIUrl":"https://doi.org/10.1109/iccc52777.2021.9580305","url":null,"abstract":"In this paper, a camera assisted received signal strength (CA-RSS) algorithm is proposed for visible light positioning (VLP) systems. The basic idea of CA-RSS is to simultaneously utilize visual and strength information of visible lights to achieve accurate positioning at low cost. With rectangular LED layout, the irradiance angles of the visible lights can be estimated regardless of the orientations of the LEDs. Based on the estimated irradiance angles, the distances between the LEDs and the receiver are obtained. Then, the two-dimensional (2D) position of the receiver can be calculated at low cost using a linear least square method. Based on the solid geometry theory, we further propose an independent solution method for three-dimensional (3D) positioning, which can avoid error propagation issue of dependent solution method. Moreover, considering the imperfect channel model in practice, we propose a calibration method of Lambertian model for practical uses. Simulation results show that the proposed approach can achieve 80th percentile accuracies of less than 10 cm for 3D positioning regardless of the orientations of the LEDs and the receiver. In addition, experimental results show that the proposed algorithm achieves an average 3D positioning error of 4.48 cm in a 70 cm × 70 cm × 140 cm space.","PeriodicalId":425118,"journal":{"name":"2021 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121840025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0