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2022 27th Asia Pacific Conference on Communications (APCC)最新文献

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Multimodal Object Detection and Ranging Based on Camera and Lidar Sensor Fusion for Autonomous Driving 基于摄像头与激光雷达传感器融合的自动驾驶多模态目标检测与测距
2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943618
Danish Khan, Minjin Baek, Min Young Kim, Dong Seog Han
{"title":"Multimodal Object Detection and Ranging Based on Camera and Lidar Sensor Fusion for Autonomous Driving","authors":"Danish Khan, Minjin Baek, Min Young Kim, Dong Seog Han","doi":"10.1109/APCC55198.2022.9943618","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943618","url":null,"abstract":"A robust perception system is critical in autonomous driving. It is responsible for object detection, classification, and ranging under challenging circumstances. Camera and lidar sensors provide complementary information, and by combining these two modalities, we can increase the robustness and accuracy of the overall perception system. This paper presents the implementation of sensor fusion based perception using camera images and lidar point clouds for object detection and ranging in a real-time driving environment. The experiment results obtained with our test vehicle demonstrate that the perception of vehicle surroundings can be more effectively achieved by means of camera-lidar sensor fusion compared with using a single type of sensor.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127946836","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
High Throughput Satellites: Issues in Comparing Capacities 高通量卫星:比较能力中的问题
2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943740
A. Duverdier, M. Bousquet
{"title":"High Throughput Satellites: Issues in Comparing Capacities","authors":"A. Duverdier, M. Bousquet","doi":"10.1109/APCC55198.2022.9943740","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943740","url":null,"abstract":"Since the early 2000s, satellite telecommunications have evolved significantly with the deployment of high throughput satellite systems offering Terabps capacity. Most often, operators and analysts evaluate this system capacity adding the forward and return data rates, obtained by multiplying the number of satellites by the available bandwidth, the frequency reuse factor and a typical spectral efficiency for each link. After presenting this first level solution, the paper proposes a methodology to evaluate HTS system capacity in three steps: IP throughput from link budget analysis, capacity obtained at the satellite level, influence of system configurations (users, gateways, services).","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129261003","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
Calibrating Dead Reckoning with Deep Reinforcement Learning 用深度强化学习校准航位推算
2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943735
Sangmin Lee, Hwangnam Kim
{"title":"Calibrating Dead Reckoning with Deep Reinforcement Learning","authors":"Sangmin Lee, Hwangnam Kim","doi":"10.1109/APCC55198.2022.9943735","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943735","url":null,"abstract":"In general, as the moving distance increases, positioning accuracy degradation due to cumulative error is pointed out as a major problem in DR (Dead Reckoning). The distance-based positioning system has the advantage of high positioning accuracy depending on the sensor used. However, in environments where the use of infrastructure is restricted, such as security facilities or disaster environments, its utilization is limited, and Line of Sight (LOS) between devices must be guaranteed. To compensate for those limitations, we propose a framework for resetting the initial point of an object in DR. In order to reduce the position error that increases in proportion to the accumulated distance of DR, a method of resetting the starting point of DR to the position derived by distance-based trilateration was adopted. However, the process of resetting every moment when the trilateration-based position is derived can increase the system overhead and cause a positioning delay. Therefore, we derived the optimal starting point reset position and frequency by using Deep Reinforcement Learning (DRL). Through simulation, we verified that the proposed system improves the positioning accuracy compared to conventional DR through low resource consumption.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125337804","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
Incorporation of Oval-Slot and Arc-Slits Upon Planar Oval Monopole Antenna for Radiation Characteristics Improvement 平面椭圆单极天线椭圆槽和圆弧缝结合改善其辐射特性
2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943694
A. D. Prasetyo, D. Hamdani, Budi Syihabuddin, A. Munir
{"title":"Incorporation of Oval-Slot and Arc-Slits Upon Planar Oval Monopole Antenna for Radiation Characteristics Improvement","authors":"A. D. Prasetyo, D. Hamdani, Budi Syihabuddin, A. Munir","doi":"10.1109/APCC55198.2022.9943694","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943694","url":null,"abstract":"This paper proposes the improvement of planar oval monopole antenna radiation characteristics by incorporating an oval-slot and arc-slits upon its radiating patch. The oval shape of the patch was obtained theoretically by determining a triangle-to-oval formula. A modification on the radiating patch by involving an oval slot geometrically scaled down from its dimensions is proposed to enhance the radiation characteristics. Moreover, two pairs of arc slits are also embedded into the patch for the enhancement. The modification stage is carried out through simulations in which experimental characterizations are used to validate the final configuration. The characterization is performed in an anechoic chamber in the frequency range of 1–20 GHz. The characterization results show that the incorporation of oval-slot and arc-slits into the radiating patch produces a reflection coefficient (S11) of around 34.78% for S11 value between –10 dB to –20 dB. The proposed antenna configuration works at the frequency band of 1.38–20 GHz with two rejection bands of around the frequency ranges of 1.95–3.47 GHz and 9.08–9.55 GHz. The radiation patterns are measured at the frequencies of 5.66 GHz, 8.03 GHz, and 13.54 GHz to analyze the effect of improvement due to the modification. Furthermore, investigations on the distribution of surface current are also performed to determine the potency of modification offered for future developments.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126600354","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
Sum Rate Optimization for UAV-assisted NOMA-based Backscatter Communication System 无人机辅助noma反向散射通信系统的和速率优化
2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943681
Zi-fu Fan, Yang Hu, Zheng-qiang Wang, Xiaoyu Wan, Bin Duo
{"title":"Sum Rate Optimization for UAV-assisted NOMA-based Backscatter Communication System","authors":"Zi-fu Fan, Yang Hu, Zheng-qiang Wang, Xiaoyu Wan, Bin Duo","doi":"10.1109/APCC55198.2022.9943681","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943681","url":null,"abstract":"This paper considers a backscatter communication (BC) system, which is based on the non-orthogonal multiple access (NOMA) protocol and assisted by a full-duplex unmanned aerial vehicle (UAV). To improve the communication quality of this NOMA-based system, we increase the number of backscatter devices (BDs) and maximize the sum rate by optimizing the reflection coefficient (RC) of BDs and the location of the UAV. As the sum rate problem is a non-convex problem, we propose an iterative algorithm to solve the problem by using the block coordinated descent (BCD) technique and quadratic transform algorithm. The RC problem is solved by monotonicity. Then, the location problem is solved by the quadratic transform algorithm. Finally, simulation results demonstrate that the proposed algorithm achieves higher sum rate than the other schemes.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122324329","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
Mitigating the Effect of Impulsive Noise in Power Line Communications with Preprocessing 利用预处理技术减轻电力线通信中脉冲噪声的影响
2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943739
Hongwu Ge, S. Sun, Xin Dai, Hao Tian
{"title":"Mitigating the Effect of Impulsive Noise in Power Line Communications with Preprocessing","authors":"Hongwu Ge, S. Sun, Xin Dai, Hao Tian","doi":"10.1109/APCC55198.2022.9943739","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943739","url":null,"abstract":"This paper investigates preprocessing for mitigating the impulsive noise encountered in power line communications (PLC). In particular, we consider the scenario of using powerful polar codes in the presence of Middleton Class-A Noise (MCAN). Two preprocessing methods, including blanking and clipping, are investigated before the use of successive cancellation list (SCL) decoding. With a Markov chain modeling for MCAN, the blanking is demonstrated to be an effective method for discriminating the state of MCAN and it simply erases the channel when the corrupted state due to the presence of impulsive noise is detected. The use of blanking, along with the log-likelihood ratio computation, could achieve significant gain for SCL decoding of polar codes over PLC channels, which is validated by extensive experiments.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126758419","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
Compact Capacitively-Loaded Transmission Line with Enhanced Phase Shift Range 增强相移范围的紧凑型电容负载传输线
2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943620
Z. Zulfi, J. Suryana, A. Munir
{"title":"Compact Capacitively-Loaded Transmission Line with Enhanced Phase Shift Range","authors":"Z. Zulfi, J. Suryana, A. Munir","doi":"10.1109/APCC55198.2022.9943620","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943620","url":null,"abstract":"Capacitively-loaded transmission line realized using a common configuration has typically a narrow phase shift range, so it is unusable as a phase shifter for beamforming applications. Increasing the number of capacitors to enhance the phase shift range is usually accompanied by an increase in the transmission line section, resulting in a large circuit size. This paper presents an implementation of a mirror configuration on a capacitor-loaded microstrip line to enhance the phase shift range. The loading capacitors are located on both sides of the transmission line section, instead of being located on one side. The experimental results show that when capacitances are varied from 0.2 pF to 0.8 pF, the proposed configuration could produce a wide phase shift range of 139.48o and a compact circuit size of 46.4 mm × 22.5 mm. The capacitively-loaded transmission line implemented using a mirror configuration increases the phase shift range by 55% and reduces the circuit size by 22% compared to the common configuration.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":" 17","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114101718","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
16 Channels WDM Radio Over Fiber System With DCF and FBG compensators 带DCF和FBG补偿器的16路WDM光纤无线电系统
2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943747
M. Sliti
{"title":"16 Channels WDM Radio Over Fiber System With DCF and FBG compensators","authors":"M. Sliti","doi":"10.1109/APCC55198.2022.9943747","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943747","url":null,"abstract":"In the current telecommunications system design, Radio over Fiber (RoF) technologies are essentials to fifth generation (5G) communication networks, which aims to improve the network capacity and the cost efficiency. A 16-channels WDM RoF system was simulated and analyzed for optimum performance using dispersion compensation fiber (DCF) and fiber Bragg grating (FBG) with channel spacings of 100 GHz and 50 GHz, and SMF lengths of 20km and 50km.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114207883","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
Design of the Multibeam Reflector Antenna for GEO flexible Satellite GEO柔性卫星多波束反射天线设计
2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943589
S. Yun, M. Uhm, D. Chang, Byoung-Sun Lee
{"title":"Design of the Multibeam Reflector Antenna for GEO flexible Satellite","authors":"S. Yun, M. Uhm, D. Chang, Byoung-Sun Lee","doi":"10.1109/APCC55198.2022.9943589","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943589","url":null,"abstract":"This paper presents a multibeam reflector antenna fed by array elements for GEO flexible satellites. The reflector structure is designed within the constraints of satellite mounting. The array feed network with shared elements have close beam spacing, compact volume and light weight. A feed component assembled with a horn and a polarizer is also designed. The antenna composed of a reflector and feed components with optimal feed excitations forms four beams on the Korean Peninsula and surrounding marine areas for universal service.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115182850","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
Terminal ASIC Structure for Satellite IoT transmission 卫星物联网传输终端ASIC结构
2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943634
Sooyeob Jung, M. Oh, Sangjae Lee, J. Ryu
{"title":"Terminal ASIC Structure for Satellite IoT transmission","authors":"Sooyeob Jung, M. Oh, Sangjae Lee, J. Ryu","doi":"10.1109/APCC55198.2022.9943634","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943634","url":null,"abstract":"This paper presents the structure of terminal ASIC chip with low speed, low power, and small characteristics for satellite IoT transmission. The external connection with the sensor, flash external, and tuner will be made centering on the ASIC chip. Three transmission waveforms, such as the LoRa, I-LoRa, and LoRa-E, will be used to send the collected data to LEO satellite. As a result, the data collected from the sensor is transmitted to the ASIC chip through the sensor interface, and the ASIC chip modulates the collected data into an uplink signal and sends it to LEO satellite through the tuner.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122891862","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
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