2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)最新文献_第5页

Performance Analysis of Serial and Parallel Amplify-and-Forward Relaying Coherent OFDM FSO System over Exponential Weibull Atmospheric Turbulence Channel 指数威布尔大气湍流信道上串并联放大前向中继相干OFDM FSO系统性能分析

2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2021-12-17 DOI: 10.1109/ICECE54449.2021.9674510

Qianqian Wang, Haibo Wang, Yi Wang

{"title":"Performance Analysis of Serial and Parallel Amplify-and-Forward Relaying Coherent OFDM FSO System over Exponential Weibull Atmospheric Turbulence Channel","authors":"Qianqian Wang, Haibo Wang, Yi Wang","doi":"10.1109/ICECE54449.2021.9674510","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674510","url":null,"abstract":"This paper proposes a coherent orthogonal frequency division multiplexing (OFDM) free space optical (FSO) communication system model consisting of parallel channel state information (CSI)-assisted amplify-and-forward (AF) relays over Exponential Weibull (EW) atmospheric attenuation channel. Using quadrature amplitude modulation (QAM) as a subcarrier mapping mode for OFDM signals. Considering the joint effects of path loss, pointing errors and atmospheric turbulence, the closed-form expressions of the Meijer G form of moment generating function (MGF), probability density function (PDF), and cumulative distribution function (CDF) are derived. Using these results, the closed-form expressions for the lower bounds of the outage probability and the symbol error rate (SER) of the proposed system are derived using Meijer’s G-function. In addition, the influence of atmospheric turbulence intensity, number of subcarriers, mapping coefficient and other important factors on outage performance and SER are analyzed by simulations. The simulation results show that the relaying technology can increase the link range and improve the performance of the FSO communication systems.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124770616","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

IPR-GAN: Identity Preserving Representation GAN for Multi-view Face Synthesis and Recognition 基于身份保持表示的多视图人脸合成与识别GAN

2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2021-12-17 DOI: 10.1109/ICECE54449.2021.9674555

Yan Wan, Lingwei Shen, L. Yao

引用次数: 0

Study on Clock Synchronization Model in Low Voltage Station 低压电站时钟同步模型的研究

2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2021-12-17 DOI: 10.1109/ICECE54449.2021.9674586

Zhan Shi, Yutu Liang, Xiuzhu Wang, Zhenyu Zhong

引用次数: 0

Research on the Performance of 2x2 MIMO Vehicle Visible Light Communication System 2x2 MIMO车载可见光通信系统性能研究

2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2021-12-17 DOI: 10.1109/ICECE54449.2021.9674367

Ying Zhang, Ouyang Cai, Yufeng Yang

{"title":"Research on the Performance of 2x2 MIMO Vehicle Visible Light Communication System","authors":"Ying Zhang, Ouyang Cai, Yufeng Yang","doi":"10.1109/ICECE54449.2021.9674367","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674367","url":null,"abstract":"In order to study the influence of the channel environment on the performance of the vehicle-mounted visible light communication system, the 2x2MIMO vehicle-mounted visible light channel spatial correlation model was established, and the influence of each parameter on the condition number of the channel matrix was analyzed. Then the spatial rectangular model of the 2x2MIMO vehicle-mounted visible light communication system was optimized. The received power of the direct path of the low beam and the high beam system and the diffuse reflection path of the ground and adjacent lanes was studied; through the Mie theory, and finally the number of different dust particles is simulated and analyzed the effect of density and channel correlation on system performance. The results show that: the relative speed and direction of motion have a large impact on the low beam and high beam systems respectively; the reflected power of the vehicle surface in the adjacent lane is greater than the ground reflected power; the number of dust particles has a greater impact on the transmission power than the wavelength; the high beam Compared with the low beam system channel capacity, the system channel capacity has increased by about $7.7mathrm{x}10^{4}$(b/s). The performance of the vehicle-mounted visible light communication system increases with the decrease of the distance between the transmitting end and the distance between the receiving end, the offset of the transceiver end and the height difference.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130414268","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

ICECE 2021 Cover Page ICECE 2021封面

2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2021-12-17 DOI: 10.1109/icece54449.2021.9674617

引用次数: 0

A Joint Source-Channel Code Modulation Scheme Based on Variable-Length Code and Doping Modulation 一种基于变长码和掺杂调制的联合源信道码调制方案

2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2021-12-17 DOI: 10.1109/ICECE54449.2021.9674645

Han Bao, Can Zhang, Shaoshuai Gao

引用次数: 0

An FPGA Based Adaptive Real-Time Enhancement System for Dental X-rays 基于FPGA的牙科x射线自适应实时增强系统

2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2021-12-17 DOI: 10.1109/ICECE54449.2021.9674312

Haoyang Sang, Junsong Zhang, Liyi Yao, Zhao Wang, Kunmeng Luo, Wumeng Yin, Meng You, Bo Gao

{"title":"An FPGA Based Adaptive Real-Time Enhancement System for Dental X-rays","authors":"Haoyang Sang, Junsong Zhang, Liyi Yao, Zhao Wang, Kunmeng Luo, Wumeng Yin, Meng You, Bo Gao","doi":"10.1109/ICECE54449.2021.9674312","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674312","url":null,"abstract":"Dental X-ray imaging which shows the clear internal structure of teeth is essential for diagnosis. However, the image details in both dark and bright regions are often hard to distinguish due to the misoperation and the limitation of dental Xray imaging machines. In addition, the emergence of some realtime X-ray imaging machines has put forward higher requirements for the processing speed of enhancement systems. In this paper, an adaptive enhancement system consisting of a top control unit (TCU), an image quality feature extraction unit (FEU), a multilayer perception (MLP) unit and an adaptive image processing unit (IPU) is presented. Four image quality features as well as MLPs are proposed to detect image quality problems and control the image processing performance. For IPU, a novel fast contrast limited adaptive histogram equalization (FCLAHE) is proposed to accelerate the interpolation process. Modified guided filter, laplacian filter, gamma correction, and FCLAHE are integrated into the IPU. The proposed system is implemented in register transfer level (RTL) and demonstrated on field programmable gate array (FPGA). It runs at a clock frequency of 133 MHz and is capable of processing $1980times 1080$ images or videos with a high throughput of 127.35 Mpixels/s. Moreover, the proposed system offers the top image enhancement performance among the state-of-the-art implementations and its peak throughput is $37times$ higher than a personal computer (PC) with Core i7 8750H.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124840773","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

An mm-wave CMOS Active Phase Shifter with a Low-Loss I/Q Generator for 5G Applications 5G应用中带低损耗I/Q发生器的毫米波CMOS有源移相器

2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2021-12-17 DOI: 10.1109/ICECE54449.2021.9674505

Yitong Xiong, Xiaoping Zeng, Y. Pu, Enze Nie

引用次数: 0

Adaptive Enhancement for Scanned Historical Document Images 扫描历史文档图像的自适应增强

2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2021-12-17 DOI: 10.1109/ICECE54449.2021.9674392

Farouk Suleiman, Chris J. Hughes, E. Obio

{"title":"Adaptive Enhancement for Scanned Historical Document Images","authors":"Farouk Suleiman, Chris J. Hughes, E. Obio","doi":"10.1109/ICECE54449.2021.9674392","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674392","url":null,"abstract":"In this paper we propose, a novel adaptative histogram matching method to remove low contrast, smeared ink, bleed-through and uneven illumination artefacts from scanned images of historical documents. The goal is to provide a better representation of document images and therefore improve readability and the source images for Optical Character Recognition (OCR). Unlike other methods that are designed for single artefacts, our proposed method enhances multiple (low-contrast, smeared-ink, bleed-through and uneven illumination). The method starts by taking the bimodal peaks of the original grayscale image and multiplying them to generated gaussian windows to create an ideal histogram with weights of importance to distribution. This histogram becomes the reference histogram to be matched to the original image for a more optimized image. Median filtering is also incorporated in the method to remove salt and pepper noise. We demonstrate the technique on the European Newspapers project (ENP) dataset chosen from the Pattern recognition and image analysis research lab (PRImA) and establish from the results that, the proposed method significantly reduces background noise and improves image quality on multiple artefacts as compared to other enhancement methods tested. To evaluate the efficiency of the proposed method, we make use of several performance criteria. These include Signal to Noise Ratio (SNR), Mean opinion score (MOS), and visual document image quality assessment (VDIQA) metric. The proposed method performs best in all the evaluation metrics having a 42.6 % increment on the average score of the other methods for MOS, 44.3% increment on average score of other methods for SNR and 61.11% better in VDIQA compared to other methods.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129545516","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

Sparse Channel Estimation for Cluster-Based Vehicle-to-Vehicle Channels in Roadside Scattering Environments 道路散射环境下基于聚类的车对车信道稀疏估计

2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2021-12-17 DOI: 10.1109/ICECE54449.2021.9674493

Xin Chen, Xudong Zhang, Y. Xue

引用次数: 0