IEICE Transactions on Communications最新文献_第7页

Receive Beamforming Designed for Massive Multi-User MIMO Detection via Gaussian Belief Propagation 基于高斯信念传播的大规模多用户MIMO检测接收波束成形设计

IF 0.7 4区计算机科学

IEICE Transactions on Communications Pub Date : 2023-01-01 DOI: 10.1587/transcom.2022fgp0004

Takanobu Doi, Jun Shikida, Daichi Shirase, K. Muraoka, N. Ishii, Takumi Takahashi, S. Ibi

{"title":"Receive Beamforming Designed for Massive Multi-User MIMO Detection via Gaussian Belief Propagation","authors":"Takanobu Doi, Jun Shikida, Daichi Shirase, K. Muraoka, N. Ishii, Takumi Takahashi, S. Ibi","doi":"10.1587/transcom.2022fgp0004","DOIUrl":"https://doi.org/10.1587/transcom.2022fgp0004","url":null,"abstract":"SUMMARY This paper proposes two full-digital receive beamforming (BF) methods for low-complexity and high-accuracy uplink signal detection via Gaussian belief propagation (GaBP) at base stations (BSs) adopting massive multi-input multi-output (MIMO) for open radio access network (O-RAN). In addition, beyond ﬁfth generation mobile communication (beyond 5G) systems will increase uplink capacity. In the scenarios such as O-RAN and beyond 5G, it is vital to reduce the cost of the BSs by limiting the bandwidth of fronthaul (FH) links, and the dimensionality reduction of the received signal based on the receive BF at a radio unit is a well-known strategy to reduce the amount of data transported via the FH links. In this paper, we clarify appropriate criteria for designing a BF weight considering the subsequent GaBP signal detection with the proposed meth-ods: singular-value-decomposition-basedBFandQR-decomposition-based BF with the aid of discrete-Fourier-transformation-based spreading. Both methods achieve the dimensionality reduction without compromising the desired signal power by taking advantage of a null space of channels. The proposed receive BF methods reduce correlations between the received signals in the BF domain, which improves the robustness of GaBP against spatial correlation among fading coeﬃcients. Simulation results assuming realistic BS and user equipment arrangement show that the proposed methods improve detection capability while signiﬁcantly reducing the computational cost.","PeriodicalId":50385,"journal":{"name":"IEICE Transactions on Communications","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67304254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Data Gathering Method with High Accuracy of Environment Recognition Using Mathematical Optimization in Packet-level Index Modulation 基于数学优化的分组级索引调制环境识别高精度数据采集方法

IF 0.7 4区计算机科学

IEICE Transactions on Communications Pub Date : 2023-01-01 DOI: 10.1587/transcom.2023cep0009

Ryuji Miyamoto, O. Takyu, Hiroshi Fujiwara, Koichi Adachi, M. Ohta, T. Fujii

引用次数: 0

Secure enrollment token delivery mechanism for Zero Trust networks using blockchain 使用区块链的零信任网络的安全注册令牌传递机制

IF 0.7 4区计算机科学

IEICE Transactions on Communications Pub Date : 2023-01-01 DOI: 10.1587/transcom.2022tmp0005

Javier Jose Diaz Rivera, Waleed Akbar, T. Khan, Afaq Muhammad, Wang-Cheol Song

{"title":"Secure enrollment token delivery mechanism for Zero Trust networks using blockchain","authors":"Javier Jose Diaz Rivera, Waleed Akbar, T. Khan, Afaq Muhammad, Wang-Cheol Song","doi":"10.1587/transcom.2022tmp0005","DOIUrl":"https://doi.org/10.1587/transcom.2022tmp0005","url":null,"abstract":"SUMMARY Zero Trust Networking (ZTN) is a security model where no default trust is given to entities in a network infrastructure. The first bastion of security for achieving ZTN is strong identity verification. Several standard methods for assuring a robust identity exist (E.g., OAuth2.0, OpenID Connect). These standards employ JSON Web Tokens (JWT) during the authentication process. However, the use of JWT for One Time Token (OTT) enrollment has a latent security issue. A third party can intercept a JWT, and the payload information can be exposed, revealing the details of the enrollment server. Furthermore, an intercepted JWT could be used for enrollment by an impersonator as long as the JWT remains active. Our proposed mechanism aims to secure the ownership of the OTT by including the JWT as encrypted metadata into a Non-Fungible Token (NFT). The mechanism uses the blockchain Public Key of the intended owner for encrypting the JWT. The blockchain assures the JWT ownership by mapping it to the intended owner’s blockchain public address. Our proposed mechanism is applied to an emerging Zero Trust framework (OpenZiti) alongside a permissioned Ethereum blockchain using Hyperledger Besu. The Zero Trust Framework provides enrollment functionality. At the same time, our proposed mechanism based on blockchain and NFT assures the secure distribution of OTTs that is used for the enrollment of identities.","PeriodicalId":50385,"journal":{"name":"IEICE Transactions on Communications","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67304806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Demodulation Performance Comparison of High-Speed Coherent Nyquist Pulse Signal with Analog and Digital Demultiplexing Schemes 高速相干奈奎斯特脉冲信号在模拟和数字解复用方案下的解调性能比较

IF 0.7 4区计算机科学

IEICE Transactions on Communications Pub Date : 2023-01-01 DOI: 10.1587/transcom.2022obp0001

Masato Yoshida, K. Kimura, T. Hirooka, K. Kasai, M. Nakazawa

引用次数: 0

Multi-Objective Design of EMI Filter with Uncertain Parameters by Preference Set-Based Design Method and Polynomial Chaos Method 基于偏好集和多项式混沌方法的参数不确定电磁干扰滤波器多目标设计

IF 0.7 4区计算机科学

IEICE Transactions on Communications Pub Date : 2023-01-01 DOI: 10.1587/transcom.2022ebp3183

Duc Chinh Bui, Y. Kayano, F. Xiao, Y. Kami

引用次数: 0

40-GHz band photodiode-integrated phased array antenna module for analog-radio over fiber toward Beyond 5G 40 ghz波段光电二极管集成相控阵天线模块，用于光纤模拟无线电，超越5G

IF 0.7 4区计算机科学

IEICE Transactions on Communications Pub Date : 2023-01-01 DOI: 10.1587/transcom.2022obi0004

Shinji Nimura, S. Ishimura, Kazuki Tanaka, K. Nishimura, R. Inohara

{"title":"40-GHz band photodiode-integrated phased array antenna module for analog-radio over fiber toward Beyond 5G","authors":"Shinji Nimura, S. Ishimura, Kazuki Tanaka, K. Nishimura, R. Inohara","doi":"10.1587/transcom.2022obi0004","DOIUrl":"https://doi.org/10.1587/transcom.2022obi0004","url":null,"abstract":"SUMMARY In 5th generation (5G) and Beyond 5G mobile communication systems, it is expected that numerous antennas will be densely deployed to realize ultra-broadband communication and uniform coverage. However, as the number of antennas increases, total power consumption of all antennas will also increase, which leads to a negative impact on the environment and operating costs of telecommunication operators. Thus, it is necessary to simplify an antenna structure to suppress the power consumption of each antenna. On the other hand, as a way to realize ultra-broadband communication, millimeter waves will be utilized because they can transmit signals with a broader bandwidth than lower frequencies. However, since millimeter waves have a large propagation loss, a propagation distance is shorter than that of low frequencies. Therefore, in order to extend the propagation distance, it is necessary to increase an equivalent isotropic radiated power by beamforming with phased array antenna. In this paper, a phased antenna array module in combined with analog radio over ﬁber (A-RoF) technology for 40-GHz millimeter wave is developed and evaluated for the ﬁrst time. An 8 × 8 phased array antenna for 40-GHz millimeter wave with integrated photodiodes and RF chains has been developed, and end-to-end transmission experiment including 20km A-RoF transmission and 3-m over-the-air transmission from the developed phased array antenna has been conducted. The results showed that the 40-GHz RF signal after the end-to-end transmission satisﬁed the criteria of 3GPP signal quality requirements within ± 50 degrees of main beam direction.","PeriodicalId":50385,"journal":{"name":"IEICE Transactions on Communications","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67304880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stackelberg Game for Wireless-Powered Relays Assisted Batteryless IoT Networks Stackelberg游戏用于无线供电中继辅助无电池物联网网络

IF 0.7 4区计算机科学

IEICE Transactions on Communications Pub Date : 2023-01-01 DOI: 10.1587/transcom.2023ebp3028

Yanming Chen, Bin Lyu, Zhen Yang, Fei Li

引用次数: 0

Plane-Wave Spectrum Analysis of Spherical Wave Absorption and Reflection by Metasurface Absorber 超表面吸收器球面吸收和反射的平面波谱分析

IF 0.7 4区计算机科学

IEICE Transactions on Communications Pub Date : 2023-01-01 DOI: 10.1587/transcom.2023ebp3035

Tu Nguyen Van, S. Yagitani, Kensuke Shimizu, Shinjiro Nishi, M. Ozaki, T. Imachi

引用次数: 0

Overloaded MIMO Bi-Directional Communication With Physical Layer Network Coding in Heterogeneous Multihop Networks 异构多跳网络中物理层网络编码的重载MIMO双向通信

IF 0.7 4区计算机科学

IEICE Transactions on Communications Pub Date : 2023-01-01 DOI: 10.1587/transcom.2023ebp3038

S. Denno, Tomoya Tanikawa, Yafei Hou

引用次数: 0

An Optimal Satellite Selection Schema in Feeder Link Mapping for High-Capacity Scenario 大容量场景下支线链路映射中的最优卫星选择方案

IF 0.7 4区计算机科学

IEICE Transactions on Communications Pub Date : 2023-01-01 DOI: 10.1587/transcom.2023ebp3041

R. Chen, Wen-nai Wang, Wei Wu

引用次数: 0