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IEICE Communications Express最新文献

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Special Cluster in Conjunction with IEICE General Conference 2024
IF 0.3
IEICE Communications Express Pub Date : 2024-12-02 DOI: 10.23919/comex.2024COF0001
{"title":"Special Cluster in Conjunction with IEICE General Conference 2024","authors":"","doi":"10.23919/comex.2024COF0001","DOIUrl":"https://doi.org/10.23919/comex.2024COF0001","url":null,"abstract":"IEICE Communications Express (ComEX) has continued to issue a special cluster annually in conjunction with the IEICE General Conferences since 2019. This year's special cluster is based on the papers presented at the IEICE General Conference 2024, which was held at the Hiroshima University in March 2024. Since October 1, 2023, all accepted letters in ComEX have been published in IEEE Xplore to improve the visibility of letters.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"449-449"},"PeriodicalIF":0.3,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10772345","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Image-Driven Reflection Pattern Selection for Standalone IRS Control
IF 0.3
IEICE Communications Express Pub Date : 2024-10-10 DOI: 10.23919/comex.2024XBL0155
Yoshihiko Tsuchiya;Norisato Suga;Kazunori Uruma;Masaya Fujisawa
{"title":"Image-Driven Reflection Pattern Selection for Standalone IRS Control","authors":"Yoshihiko Tsuchiya;Norisato Suga;Kazunori Uruma;Masaya Fujisawa","doi":"10.23919/comex.2024XBL0155","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0155","url":null,"abstract":"Intelligent reflecting surfaces (IRSs), which can dynamically control radio propagation, have attracted attention as devices for achieving non-line-of-sight communication under high-frequency bands. Channel estimation is required to control the IRSs, and the overhead of the estimation reduces the transmission efficiency. To remove channel estimation, control methods to predict reflection pattern candidates from image sensing are proposed. However, searching for the appropriate pattern among these candidates is necessary. This paper proposes an IRS control method that recognize users from camera images and selecting reflection patterns, thereby obviating channel estimation and reflection pattern search. Numerical experiments demonstrate that the proposed method realize accurate IRS control by only camera images.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"517-520"},"PeriodicalIF":0.3,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10713856","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Overview of C-NAT and Its Reinforcement for IoT Data Exchange Platform
IF 0.3
IEICE Communications Express Pub Date : 2024-10-10 DOI: 10.23919/comex.2024COL0012
Atsuko Yokotani;Horoshi Mineno;Masaki Mitsuuchi;Koichi Ishibashi;Tetsuya Yokotani
{"title":"Overview of C-NAT and Its Reinforcement for IoT Data Exchange Platform","authors":"Atsuko Yokotani;Horoshi Mineno;Masaki Mitsuuchi;Koichi Ishibashi;Tetsuya Yokotani","doi":"10.23919/comex.2024COL0012","DOIUrl":"https://doi.org/10.23919/comex.2024COL0012","url":null,"abstract":"IoT platforms have been actively discussed for deploying various IoT services using a horizontal approach. The IoT Data Exchange Platform (IoT-DEP) is one of these platforms, standardized as ISO/IEC 30161 series in ISO/IEC JTC 1/SC 41. These standardized documents specify the requirements, architecture, and functional blocks of the communication components. However, detailed communication sequences among the communication components are considered an implementation issue. This paper proposes a content-centric network with Network initiative And Traffic control (C-NAT) applied to the IoT-DEP as a promising candidate for communication sequences. Moreover, it proposes the reinforcement of C-NAT for low-latency and reliable industrial services when applied to IoT-DEP. Specifically, although the original C-NAT is intended to provide cyclic communication, this study proposes support for non-cyclic communication in reinforced C-NAT.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"492-495"},"PeriodicalIF":0.3,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10713855","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
2-Step Robust DNN Model for RSSI-Based Indoor Localization
IF 0.3
IEICE Communications Express Pub Date : 2024-10-10 DOI: 10.23919/comex.2024XBL0165
Taisei Kosaka;Steven Wandale;Koichi Ichige
{"title":"2-Step Robust DNN Model for RSSI-Based Indoor Localization","authors":"Taisei Kosaka;Steven Wandale;Koichi Ichige","doi":"10.23919/comex.2024XBL0165","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0165","url":null,"abstract":"In this paper, we introduce a novel approach called the 2-Step Robust Deep Neural Network (DNN), designed specifically for indoor localization utilizing received signal strength indicator (RSSI) data. This method represents an advancement over the previously proposed 2-Step Extreme Gradient Boosting (XGBoost), aiming to enhance estimation precision by leveraging a single coordinate (\u0000<tex>$x$</tex>\u0000 or \u0000<tex>$y$</tex>\u0000) as a feature. The pivotal alterations involve transitioning from XGBoost to DNN and refining the training data to develop a resilient learning model for positional coordinates. Through comprehensive simulations, we demonstrate that the proposed 2-Step Robust DNN attains superior estimation accuracy while preserving the absence of constraints on the dataset.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"513-516"},"PeriodicalIF":0.3,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10713854","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimal Power Allocation for Secure Transmission in Untrusted Relay Networks with Alamouti Space-Time Block Coding
IF 0.3
IEICE Communications Express Pub Date : 2024-10-10 DOI: 10.23919/comex.2024XBL0140
Shen Qian
{"title":"Optimal Power Allocation for Secure Transmission in Untrusted Relay Networks with Alamouti Space-Time Block Coding","authors":"Shen Qian","doi":"10.23919/comex.2024XBL0140","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0140","url":null,"abstract":"This work explores the impact of optimal power allocation on the physical layer security of lossy decode-and-forward untrusted relay networks using Alamouti Space-Time Block Code (STBC). We introduce the reliable-and-secure probability (RSP) metric to measure the likelihood of successful message recovery at the destination while ensuring the message remains unintelligible to the relays. In high spectral efficiency scenarios, allocating more power to the untrusted relay significantly enhances the RSP, surpassing low spectral efficiency results. A balanced power allocation between the source and the relay, with Alamouti STBC, achieves a high RSP. However, the peak RSP is achieved when the power contributions from the source and the relay are balanced.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"496-499"},"PeriodicalIF":0.3,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10713858","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic Mobile X-Haul Reconfiguration by Fast Network Switching for Low-Latency MEC Service
IF 0.3
IEICE Communications Express Pub Date : 2024-10-10 DOI: 10.23919/comex.2024XBL0135
Takumi Harada;Tatsuya Shimada;Tomoaki Yoshida
{"title":"Dynamic Mobile X-Haul Reconfiguration by Fast Network Switching for Low-Latency MEC Service","authors":"Takumi Harada;Tatsuya Shimada;Tomoaki Yoshida","doi":"10.23919/comex.2024XBL0135","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0135","url":null,"abstract":"The architectural flexibility of the Radio Access Network (RAN) is expected to be enhanced by applying Network Function Virtualization (NFV) to realize low-latency Multi-access Edge Computing (MEC). In order to provide on-demand MEC service tailored to the user's demands, RAN and the optical network should be constructed quickly without service interruption. In this paper, we propose a network and RAN control method that ensures cooperation of the network controller and RAN controller. It can switch network and RAN at the same time by simple reconfiguration. We evaluate the service interruption time by using the proposed method in some experimental setups in a comparison with the existing method. Finally, we confirm the proposed method enables faster reconfiguration than the network operator method.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"500-503"},"PeriodicalIF":0.3,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10713511","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic Hardware Accelerator Selection Achieving Optimal Utilization of Resources
IF 0.3
IEICE Communications Express Pub Date : 2024-10-10 DOI: 10.23919/comex.2024XBL0152
Yukio Toyoshima;Tomoya Hatano;Tatsuya Shimada;Tomoaki Yoshida
{"title":"Dynamic Hardware Accelerator Selection Achieving Optimal Utilization of Resources","authors":"Yukio Toyoshima;Tomoya Hatano;Tatsuya Shimada;Tomoaki Yoshida","doi":"10.23919/comex.2024XBL0152","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0152","url":null,"abstract":"Edge computing with offloading over a network is being considered for enabling users to use advanced applications such as autonomous control applications. When network transmission time and/or task-processing time change, the total offloading time also varies. To guarantee low latency of offloading service in this case, over-performance hardware accelerator (HWA) must be assigned on edge computing, which leads to inefficient HWA resource allocation. To address this issue, we propose a method of selecting a HWA corresponding to change of the network transmission time and/or task-processing time. The proposed method refers past transmission times and input data size for the offload, enabling the prediction of changes in network transmission time and/or task-processing time. We evaluated the time for offloading through simulation and found that our method achieves a high percentage of offloads requested by users while efficiently using HWAs.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"504-508"},"PeriodicalIF":0.3,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10713510","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
QRD-Based Precoding Design for Multiuser Massive MIMO Null-Space Expansion
IF 0.3
IEICE Communications Express Pub Date : 2024-10-10 DOI: 10.23919/comex.2024XBL0150
Yuki Sasaki;Kabuto Arai;Kazuki Maruta
{"title":"QRD-Based Precoding Design for Multiuser Massive MIMO Null-Space Expansion","authors":"Yuki Sasaki;Kabuto Arai;Kazuki Maruta","doi":"10.23919/comex.2024XBL0150","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0150","url":null,"abstract":"This article proposes a precoding weight suitable for null-space expansion (NSE) in multi-user massive multiple-input multiple-output (MU-mMIMO). NSE improves inter-user interference (IUI) suppression performance by steering multiple nulls for interfering user terminals (UTs). However, NSE faces challenges in effectively forming beams and nulls for IUI suppression, as well as in managing the computational complexity for precoding. We employ QR decomposition-based Gram-Schmidt orthogonalization (QRGSO) as a precoding algorithm suitable for NSE. Computer simulation demonstrates the superiority of the proposed scheme in terms of IUI suppression performance and computation complexity.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"509-512"},"PeriodicalIF":0.3,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10713513","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preamble Detection Method for RSS Data Synchronization in WLAN Monitoring 用于无线局域网监测 RSS 数据同步的前导码检测方法
IF 0.3
IEICE Communications Express Pub Date : 2024-09-10 DOI: 10.23919/comex.2024XBL0134
Morihiko Tamai;Akio Hasegawa;Hiroyuki Yokoyama
{"title":"Preamble Detection Method for RSS Data Synchronization in WLAN Monitoring","authors":"Morihiko Tamai;Akio Hasegawa;Hiroyuki Yokoyama","doi":"10.23919/comex.2024XBL0134","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0134","url":null,"abstract":"Received signal strength (RSS) data is one of the useful data types for understanding wireless link quality. To perform WLAN monitoring over a wide area of the target environment, it is necessary to use multiple sensor nodes to observe RSS data at various positions. In this situation, achieving synchronization among sensor nodes is challenging. In this paper, we propose a synchronization method for different sets of RSS data. In our method, by analyzing In-phase and Quadrature (IQ) samples, the preamble, which is part of a wireless frame, is detected, and the reception start timing of each preamble is used as a synchronization timing point. Through experiments in an actual indoor environment, we confirmed that our method can achieve the synchronization accuracy of less than 1 µs between different sets of RSS data.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 11","pages":"435-439"},"PeriodicalIF":0.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10675420","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Factor Graph-Based Technique for Trajectory Tracking of Target with High Mobility 基于因子图的高移动性目标轨迹跟踪技术
IF 0.3
IEICE Communications Express Pub Date : 2024-09-10 DOI: 10.23919/comex.2024XBL0132
Lei Jiang;Nopphon Keerativoranan;Tad Matsumoto;Jun-ichi Takada
{"title":"Factor Graph-Based Technique for Trajectory Tracking of Target with High Mobility","authors":"Lei Jiang;Nopphon Keerativoranan;Tad Matsumoto;Jun-ichi Takada","doi":"10.23919/comex.2024XBL0132","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0132","url":null,"abstract":"This paper presents a trajectory tracking algorithm for high-mobility targets using an extended Kalman smoothing (EKS)-based factor graph (FG). Traditional tracking methods often face challenges in maintaining accuracy and computational efficiency when dealing with fast-moving objects. Leveraging the probabilistic framework of factor graphs and robust estimation of EKS, the algorithm enhances tracking precision for fast-moving objects. Extensive simulations across various motion models demonstrate improved accuracy and robustness. The results indicate that this method effectively addresses the limitations of conventional tracking algorithms, providing a promising solution for applications in aviation, autonomous vehicles, and other domains requiring high-mobility tracking.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 11","pages":"431-434"},"PeriodicalIF":0.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10675312","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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