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2020 International Conference on Information and Communication Technology Convergence (ICTC)最新文献

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Hints for Memory Optimization of Asylo-based SGX Enclave Applications 基于异步的SGX Enclave应用程序内存优化提示
2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI: 10.1109/ICTC49870.2020.9289344
Hocheol Nam, Jaewon Park, Seunggyun Lee, Seunghyun Yeo, See-hwan Yoo
{"title":"Hints for Memory Optimization of Asylo-based SGX Enclave Applications","authors":"Hocheol Nam, Jaewon Park, Seunggyun Lee, Seunghyun Yeo, See-hwan Yoo","doi":"10.1109/ICTC49870.2020.9289344","DOIUrl":"https://doi.org/10.1109/ICTC49870.2020.9289344","url":null,"abstract":"Intel SGX is a technology for providing the hardware-based trusted execution environment, that is available on the 6th generation Intel CPUs and above. Despite the strong security model, SGX has a fundamental limitation in its memory capacity. An SGX-enabled processor has 128 MB of the trusted memory region, called enclave page cache. Due to the limited EPC size, loading and running memory-intensive secure applications is limited. We can use SGX paging, adjusting heap sizes to accommodate secure applications in SGX enclaves. However, the performance impact of memory pressure has not been thoroughly investigated. In this paper, we analyze the relationship between the memory footprint of the secure application with the performance. According to our analysis, we show that the memory footprint of the enclave heap could negatively affect the performance of the latency-sensitive application. Besides, we show that we can effectively mitigate performance degradation by adjusting the maximum heap size.","PeriodicalId":282243,"journal":{"name":"2020 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122230472","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
A Study on Distance Measure for Effective Anomaly Detection using AutoEncoder 基于自编码器的有效异常检测距离测量研究
2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI: 10.1109/ICTC49870.2020.9289177
Hyunyong Lee, Nac-Woo Kim, Jungi Lee, Byung-Tak Lee
{"title":"A Study on Distance Measure for Effective Anomaly Detection using AutoEncoder","authors":"Hyunyong Lee, Nac-Woo Kim, Jungi Lee, Byung-Tak Lee","doi":"10.1109/ICTC49870.2020.9289177","DOIUrl":"https://doi.org/10.1109/ICTC49870.2020.9289177","url":null,"abstract":"Anomaly detection is a popular application in various areas. One challenging issue is to build an anomaly detection model using normal data because collecting potential abnormal data is quite difficult. In this paper, we build an anomaly detection model using just normal data based on adversarial autoencoder for acoustic data. After extracting features using the trained model, we apply a distance-based method for calculating a threshold to be used for anomaly detection. In particular, we propose a method for reflecting differences in dimensions in calculating distance. Through experiments, we show that the proposed dimension-aware distance measure improves anomaly detection accuracy by up to 7% compared to existing distance measure methods.","PeriodicalId":282243,"journal":{"name":"2020 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"311 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126612838","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
Performance Comparison of SU- and MU-MIMO in 802.11ax: Delay and Throughput 802.11ax中SU- mimo和MU-MIMO的性能比较:延迟和吞吐量
2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI: 10.1109/ICTC49870.2020.9289385
Y. Heo, Jonggyu Jang, Yeong-Jun Kim, H. Yang
{"title":"Performance Comparison of SU- and MU-MIMO in 802.11ax: Delay and Throughput","authors":"Y. Heo, Jonggyu Jang, Yeong-Jun Kim, H. Yang","doi":"10.1109/ICTC49870.2020.9289385","DOIUrl":"https://doi.org/10.1109/ICTC49870.2020.9289385","url":null,"abstract":"The most recent Wi-Fi standard, IEEE 802.11ax, supports uplink multiuser (MU) multi-input multi-output (MIMO) with the expectation of increased throughput and reduced access delay, compared with the legacy Wi-Fi. Recent studies on cellular mobile networks, such as 3GPP LTE, have shown that MU-MIMO indeed greatly improves the delay and throughput performance, compared to single user (SU)-MIMO. However, there is no study explicitly comparing the 802.11ax and the legacy Wi-Fi in the uplink delay and throughput perspectives. This paper presents numerical comparison of uplink MU- and SU-MIMO on the delay and throughput performance.","PeriodicalId":282243,"journal":{"name":"2020 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114150903","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: 3
An Organizational Structure for the Thing-User Community Formation 物-用户社区形成的组织结构
2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI: 10.1109/ictc49870.2020.9289163
Seong-Soon Joo, Woongshik You, C. Pyo, H. Kahng
{"title":"An Organizational Structure for the Thing-User Community Formation","authors":"Seong-Soon Joo, Woongshik You, C. Pyo, H. Kahng","doi":"10.1109/ictc49870.2020.9289163","DOIUrl":"https://doi.org/10.1109/ictc49870.2020.9289163","url":null,"abstract":"The special feature of the thing-user centric communication is that thing-users can form a society autonomously and collaborate to solve problems. To share experiences and knowledge, thing-users form, join, and leave communities. The thing-user, who needs a help from other thing-users to accomplish a mission, searches thing-user communities and nominates thing-users of the discovered communities to organize a collaborative work group. Thing-user community should perform autonomously the social construction process and need principles and procedures for the community formation and collaboration within the thing-user communities. This paper defines thing-user communities and proposes an organizational structure for the thing-user community formation.","PeriodicalId":282243,"journal":{"name":"2020 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114193573","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
Capacity-Achieving Precoding with Low-Complexity for Terahertz LOS Massive MIMO using Uniform Planar Arrays 基于均匀平面阵列的太赫兹LOS大规模MIMO低复杂度容量预编码
2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI: 10.1109/ICTC49870.2020.9289295
Hwanjoon Cho, Chanhoo Park, N. Lee
{"title":"Capacity-Achieving Precoding with Low-Complexity for Terahertz LOS Massive MIMO using Uniform Planar Arrays","authors":"Hwanjoon Cho, Chanhoo Park, N. Lee","doi":"10.1109/ICTC49870.2020.9289295","DOIUrl":"https://doi.org/10.1109/ICTC49870.2020.9289295","url":null,"abstract":"Terahertz (THz) line-of-sight (LOS) massive multiple-input multiple-output (MIMO) communication is promising to achieve a few terabit rates for beyond 5G. The tiny wavelength in THz allows us to pack massive antenna elements onto a small aperture size. As the number of antenna elements scales, it is critical to improving the energy efficiency in the baseband processing while maintaining spectral efficiency performance. In this paper, we present a two-stage precoding method that achieves the MIMO channel capacity with significantly reduced computational complexity. The principal idea is to decompose a uniform planner array (UPA) into a superposition of multi-layered uniform circular subarrays (UCAs) at both ends. Thanks to the structure of the circulant channel matrix between the subarrays, the proposed precoding exploits the Fast Fourier Transform (FFT)-based inner precoding per subarray conjunction with singular value decomposition (SVD) outer precoding per eigen-mode. We show that this two-stage precoding method provides a multiplicative gain in the computational complexity reduction compared to the conventional SVD precoding.","PeriodicalId":282243,"journal":{"name":"2020 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"49 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121015993","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
REINDEAR : REINforcement learning agent for Dynamic system control in Edge-Assisted Augmented Reality service 边缘辅助增强现实服务中动态系统控制的强化学习代理
2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI: 10.1109/ICTC49870.2020.9289225
Kyungchae Lee, Chan-Hyun Youn
{"title":"REINDEAR : REINforcement learning agent for Dynamic system control in Edge-Assisted Augmented Reality service","authors":"Kyungchae Lee, Chan-Hyun Youn","doi":"10.1109/ICTC49870.2020.9289225","DOIUrl":"https://doi.org/10.1109/ICTC49870.2020.9289225","url":null,"abstract":"Nowadays the industry of the Augmented/Virtual Reality is rapidly growing in various domains such as AI assistance or gaming. While the main goal of the AR service itself is to provide the user the visualized computing experience in their life, the systematic requirements include the real-time performance since the service should be reacting to the user’s state which changes dynamically over time. This kind of real-time response is often very hard to achieve on typical edge devices such as mobile phone or AR goggles due to lack of computational power. To overcome this issue, many of the researches suggest server offloading technique which can provide sufficient amount of computational power in exchange of the transmission overhead. The tradeoff relationship between the computational power and transmission overhead makes the control of the offloading procedure important for the overall service quality. In this paper we propose an RL based server-client controlling scheme REINDEAR. REINDEAR is a system that conducts class-wise characteristic analysis from the experience, so that it could control the AR service tradeoff quality adaptively. From the result of the experiments, we showed that our REINDEAR system learns the underlying behavioural patterns of video objects and provides controls that suits each pattern.","PeriodicalId":282243,"journal":{"name":"2020 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116730493","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
Bio-inspired Relay Selection Algorithm Using Finite Blocklength Regime for URLLC 基于有限块长度的URLLC仿生中继选择算法
2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI: 10.1109/ICTC49870.2020.9289239
W. Ryu, Dong Seong Kim, S. Shin
{"title":"Bio-inspired Relay Selection Algorithm Using Finite Blocklength Regime for URLLC","authors":"W. Ryu, Dong Seong Kim, S. Shin","doi":"10.1109/ICTC49870.2020.9289239","DOIUrl":"https://doi.org/10.1109/ICTC49870.2020.9289239","url":null,"abstract":"Ultra-reliable and low-latency communication (URLLC) is expected to lead AR/VR, factory automation, transport industry, and power distribution as an important requirement in 5G wireless networks. This class of services could be considered as the most challenging and intriguing part because achieving low latency and ultra-high reliability at the same time is hard. In the 3rd Generation Partnership Project(3GPP) standard, a general URLLC requirement is 99.999% target reliability with 1 ms (two-way) user-plane latency. The reliability here is defined as the percentage of packets that are correctly received within the delay budget. In this paper, a relay selection algorithm based on the Finite Blocklength (FBL) regime is proposed to satisfy high reliability and low latency required in URLLC of 5G systems, using the genetic algorithm (GA). The simulation results showed better performance of the proposed algorithm than of the fixed relay selection.","PeriodicalId":282243,"journal":{"name":"2020 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121663615","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
A simple construction for QC-LDPC codes of short lengths with girth at least 8 周长至少为8的短长度QC-LDPC码的简单构造
2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI: 10.1109/ICTC49870.2020.9289268
Inseon Kim, Hong‐Yeop Song
{"title":"A simple construction for QC-LDPC codes of short lengths with girth at least 8","authors":"Inseon Kim, Hong‐Yeop Song","doi":"10.1109/ICTC49870.2020.9289268","DOIUrl":"https://doi.org/10.1109/ICTC49870.2020.9289268","url":null,"abstract":"In this paper, we propose a simple construction for quasi-cyclic low density parity-check codes with girth at least 8 by selecting 3 consecutive rows of a square base matrix over a finite field of size prime p = t2+1 for some t. The bit error rate performance of the codes of lengths 1200 and 2400 are Monte-Carlo simulated.","PeriodicalId":282243,"journal":{"name":"2020 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121837342","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
Three-dimensional Scanner for Multipath Fading Measurement 三维多径衰落测量扫描仪
2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI: 10.1109/ICTC49870.2020.9289489
Issei Makino, N. Miki
{"title":"Three-dimensional Scanner for Multipath Fading Measurement","authors":"Issei Makino, N. Miki","doi":"10.1109/ICTC49870.2020.9289489","DOIUrl":"https://doi.org/10.1109/ICTC49870.2020.9289489","url":null,"abstract":"In order to design the indoor internet of things (IoT) applications such as smart buildings, it is crucial to understand the propagation characteristics of the indoor environments. To this end, we implement the three-dimensional (3D) scanner with the size of 1.5 × 1.5 × 1.5 m (movable range of approximately 1.3 × 1.3 × 1.3 m). We can obtain the multipath fading variation precisely within the 3D scanner. We present the received signal strength indicator (RSSI) measurement results employing LoRa modules in the magnetic shield room. The measurement results indicate its accurate measurements and effectiveness of the implemented 3D scanner for multipath fading.","PeriodicalId":282243,"journal":{"name":"2020 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124897637","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
Predicting Game Outcome in Multiplayer Online Battle Arena Games 预测多人在线竞技游戏的游戏结果
2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI: 10.1109/ICTC49870.2020.9289254
Sang-Kwang Lee, Seung-Jin Hong, Seong-il Yang
{"title":"Predicting Game Outcome in Multiplayer Online Battle Arena Games","authors":"Sang-Kwang Lee, Seung-Jin Hong, Seong-il Yang","doi":"10.1109/ICTC49870.2020.9289254","DOIUrl":"https://doi.org/10.1109/ICTC49870.2020.9289254","url":null,"abstract":"Multiplayer online battle arena (MOBA) is currently one of most popular game genres in game artificial intelligence (AI). In this paper, we propose a method for predicting game outcome in MOBA games. Firstly, we extract features that contain the properties of the game outcome from game replay logs, taking into account game time. And then we implement a model for predicting the game outcome and interpret which features are important factors in the model. Experimental results show that the proposed method has high accuracy enough to predict the game outcome at a certain time point. It also analyzes the main play factors of game outcome for each game time zone.","PeriodicalId":282243,"journal":{"name":"2020 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122714142","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: 9
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