2022 27th Asia Pacific Conference on Communications (APCC)最新文献_第7页

A Novel Interleaving Scheme for Concatenated Codes on Burst-Error Channel 突发错误信道上一种新的串接码交织方案

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943640

Lu Liu, Suwen Song, Zhongfeng Wang

{"title":"A Novel Interleaving Scheme for Concatenated Codes on Burst-Error Channel","authors":"Lu Liu, Suwen Song, Zhongfeng Wang","doi":"10.1109/APCC55198.2022.9943640","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943640","url":null,"abstract":"With the rapid development of Ethernet, RS (544, 514) (KP4-forward error correction), which was widely used in high-speed Ethernet standards for its good performance-complexity trade-off, may not meet the demands of next-generation Ethernet for higher data transmission speed and better decoding performance. A concatenated code based on KP4-FEC has become a good solution because of its low complexity and excellent compatibility. For concatenated codes, aside from the selection of outer and inner codes, an efficient interleaving scheme is also very critical to deal with different channel conditions. Aiming at burst errors in wired communication, we propose a novel matrix interleaving scheme for concatenated codes which set the outer code as KP4-FEC and the inner code as Bose-Chaudhuri-Hocquenghem (BCH) code. In the proposed scheme, burst errors are evenly distributed to each BCH code as much as possible to improve their overall decoding efficiency. Meanwhile, the bit continuity in each symbol of the RS codeword is guaranteed during transmission, so the number of symbols affected by burst errors is minimized. Simulation results demonstrate that the proposed interleaving scheme can achieve a better decoding performance on burst-error channels than the original scheme. In some cases, the extra coding gain at the bit-error-rate (BER) of 1 × 10−15 can even reach 1 dB.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"10883 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":"133977947","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

Performance Enhancement of Circularly Polarized Microstrip Antenna Using Thin Slot and Magnetic Material 利用薄槽和磁性材料增强圆极化微带天线的性能

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943563

Rheyuniarto Sahlendar Asthan, T. Juhana, A. Munir

{"title":"Performance Enhancement of Circularly Polarized Microstrip Antenna Using Thin Slot and Magnetic Material","authors":"Rheyuniarto Sahlendar Asthan, T. Juhana, A. Munir","doi":"10.1109/APCC55198.2022.9943563","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943563","url":null,"abstract":"The performance enhancement of a circularly polarized microstrip antenna is investigated by using thin slot and magnetic material. Two different microstrip antennas with a single thin slot and a magnetic material, respectively, are employed to investigate their characteristic performances, in particular, axial ratio (AR) and impedance bandwidth. A rectangular thin slot with the size of 7.2 mm × 1 mm is arranged diagonally over the antenna patch, while a magnetic material with the size of 3 mm×3 mm × 1 mm is embedded inside the dielectric substrate of the antenna host. The magnetic material utilized for investigation is Yttrium Iron Garnet (YIG) in the demagnetized state. Characteristic performances of the proposed microstrip antenna are then compared with the ones of conventional microstrip antenna. The characterization results show that the microstrip antenna with thin slot and magnetic material can improve –10 dB impedance bandwidth for more than 78% and 44%, respectively, whilst 3 dB AR bandwidth enhances up to 12% and 160%, respectively. In addition, the center frequency of both antennas that are shifted to the lower frequency region shows the feasibility in frequency tuning and miniaturization of the microstrip antenna.","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":"133372172","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

Sound Event Detection Using Attention and Aggregation-Based Feature Pyramid Network 基于注意力和聚合特征金字塔网络的声音事件检测

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943734

Ji Woon Kim, G. Lee, H. Kim, Nam Kyun Kim

{"title":"Sound Event Detection Using Attention and Aggregation-Based Feature Pyramid Network","authors":"Ji Woon Kim, G. Lee, H. Kim, Nam Kyun Kim","doi":"10.1109/APCC55198.2022.9943734","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943734","url":null,"abstract":"This paper proposes a sound event detection (SED) model using an EfficientNet-B2 and an attention and aggregation-based feature pyramid network (A2-FPN). In particular, the EfficientNet-B2 is first obtained from the pretrained model on the basis of the pretraining, sampling, labeling, and aggregation (PSLA) framework. Then, the A2-FPN module is applied to the outputs of the layers of the EfficientNet-B2 to deal with the different time and frequency resolutions from acoustic features. The aggregated feature map from the A2-FPN module is used as input features to two bidirectional gated recurrent unit layers. Specifically, the proposed A2-FPN-based SED model is trained by the mean-teacher approach to utilize weakly labeled and unlabeled data. Finally, the proposed A2-FPN-based SED model is applied to the detection and classification of acoustic scenes and events (DCASE) 2021 Challenge Task 4. Consequently, it is shown that the polyphonic sound event detection score (PSDS) 1 and 2 of the proposed A2-FPN-based SED model are the higher of 0.03 and 0.172, respectively, than those of the DCASE 2021 Challenge Task 4 baseline.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"41 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":"116038342","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

Doppler Analysis and Compensation for Distributed LEO-MIMO Satellite Communications 分布式LEO-MIMO卫星通信的多普勒分析与补偿

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943770

Sangwoo Hong, W. Shin, Jungwoo Lee

引用次数: 1

Textile Antenna with Electromagnetic Band Gap Structure at Frequency 3.5 GHz 5G Band 3.5 GHz 5G频段电磁带隙结构纺织天线

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943561

Salwa Salsabila, H. H. Ryanu, Levy Olivia Nur, B. S. Nugroho

{"title":"Textile Antenna with Electromagnetic Band Gap Structure at Frequency 3.5 GHz 5G Band","authors":"Salwa Salsabila, H. H. Ryanu, Levy Olivia Nur, B. S. Nugroho","doi":"10.1109/APCC55198.2022.9943561","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943561","url":null,"abstract":"The Microstrip textile antenna is a form of wireless communication for human monitoring purpose that can be integrated with clothing while maintaining user comfort. However, microstrip antennas have several disadvantages such as low gain and efficiency, narrow bandwidth and surface waves that can damage the radiation pattern. The use of textile antennas also allows a mutual coupling effect between the body and the antenna that can change the resonance frequency, reduce antenna performance, and radiation hazard to the body. Based on these problems, an Electromagnetic Band Gap (EBG) structure is used with a unit cell in the shape of a Mushroom-like EBG and a via in the middle of the EBG. The use of the EBG structure can increase efficiency, reduce the effect of mutual coupling, create a better radiation pattern, and reduce radiation hazard to the body. Tests were carried out on antennas with and without EBG structures in the bandwidth range of 10–100 MHz for the 5G Band operating frequency of 3.5 GHz (n78 3500 MHz). In the 0 mm SAR test, the conventional antenna SAR is 2.4264 W/Kg, and the modified EBG antenna SAR is 1.082 W/Kg, there is a 55% reduction in SAR when the EBG structure is added. Thus, it is proven that the addition of EBG with modifications in this study can produce a minimum SAR value..In addition, there is an increase in bandwidth of 92% with the Conventional Antenna bandwidth of 27.30 MHz and the Modified EBG Antenna bandwidth and 52.50 MHz DGS with the test object on Hand. In the radiation parameters, the radiation pattern is unidirectional, linear polarization, and gain is 8.32 dBi.","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":"122239847","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

Gorbhani Amplifier and Doppler Issues for Inter-Satellite Data Links 卫星间数据链路的Gorbhani放大器和多普勒问题

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943667

K. Pasi

{"title":"Gorbhani Amplifier and Doppler Issues for Inter-Satellite Data Links","authors":"K. Pasi","doi":"10.1109/APCC55198.2022.9943667","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943667","url":null,"abstract":"This paper attempts to present the relation between Gorbhani type of Amplifier distortion and doppler for varying levels of normalized signal. The Intersatellite links are subjected to doppler phenomenon due to relative motion between the satellites. Doppler and Amplifier distortion together significantly degrade the data transmitted on the Inter-Satellite links. The cumulative degradation is presented via Error Vector Magnitude (EVM) metric as it helps to understand both qualitative and quantitative signal degradation. In view of significant number satellite constellations being deployed around the globe for data transmission,the results presented in this paper helps satellite constellation designers to understand and estimate the cumulative distortion. An expression for the Error Vector magnitude is derived and presented for a PSK(I/Q) modulated signal. The results presented corelates two different types distortions component induced Amplifier distortion and physical(channel) distortion Doppler. The results present in this paper helps Satellite Constellation/System designers in the selection of components(Amplifier) whose distortion is less sensitivity to doppler.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"23 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":"124157313","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

Efficient allocation of 6G LEO downlink resource via software defined Ground Segment MODEM 通过软件定义的地面段调制解调器有效分配6G LEO下行资源

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943616

Haesoo Kim, Seong Eui Song

引用次数: 0

A Ka-Band CMOS Beamforming Front-End IC for RF Inter Satellite Link System 一种用于射频卫星间链路系统的ka波段CMOS波束形成前端集成电路

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943762

Jinseok Park, Seong-Mo Moon, Ju-Hyun Lim, Soonyoung Hong, Dongpil Chang, Byung-Sun Lee

引用次数: 1

Performance Analysis of Extended Integrated Interleaved Codes 扩展集成交错码的性能分析

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943680

Keyue Deng, Xinyuan Qiao, Yuxing Chen, Suwen Song, Zhongfeng Wang

引用次数: 0

Analysing Attackers and Intrusions on a High-Interaction Honeypot System 高交互蜜罐系统攻击与入侵分析

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943718

Mandy Knöchel, S. Wefel

引用次数: 0