Journal of Telecommunications and Information Technology最新文献_第5页

Hierarchical Access Structure-based Scheme with Outsourcing and Revocation Mechanism for Cloud Environment 基于分层访问结构的云环境方案与外包和撤销机制

Journal of Telecommunications and Information Technology Pub Date : 2023-11-28 DOI: 10.26636/jtit.2023.4.1299

T. Mujawar, L. B. Bhajantri, A. Sutagundar

{"title":"Hierarchical Access Structure-based Scheme with Outsourcing and Revocation Mechanism for Cloud Environment","authors":"T. Mujawar, L. B. Bhajantri, A. Sutagundar","doi":"10.26636/jtit.2023.4.1299","DOIUrl":"https://doi.org/10.26636/jtit.2023.4.1299","url":null,"abstract":"Ciphertext policy attribute-based encryption (CPABE) is one of the efficient implementations of encrypted access control scheme for cloud computing. Though multiple implementations of CPABE exist, there are some issues that need to be addressed, including efficient revocation approach, decryption time, storage cost etc. In this paper, an efficient scheme that incorporates a hierarchical access structure, outsourced decryption, as well as user and attribute revocation is presented. The hierarchical access structure is utilized to encrypt multiple data using one common access structure and makes the encryption process more efficient. The outsourcing server is used to perform partial decryption, so that all heavy computations are performed by this server and less overhead is incurred by the data user. The proposed framework also integrates the evaluation of trustworthiness of data users and service providers to ensure trusted and encrypted access control procedures. The paper also presents an analysis of the time required for performing different operations. Simulation results show that the proposed scheme outperforms the existing approaches.","PeriodicalId":38425,"journal":{"name":"Journal of Telecommunications and Information Technology","volume":"116 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139219474","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

High Gain WAT Antenna for 38 GHz 5G Systems 用于 38 GHz 5G 系统的高增益 WAT 天线

Journal of Telecommunications and Information Technology Pub Date : 2023-11-22 DOI: 10.26636/jtit.2023.4.1386

R. Przesmycki, M. Bugaj

引用次数: 0

Advanced Considerations Concerning Impact of Applied Call Admission Control Mechanisms on Traffic Characteristics in Elastic Optical Network Nodes 应用呼叫准入控制机制对弹性光网络节点流量特性影响的高级考虑因素

Journal of Telecommunications and Information Technology Pub Date : 2023-11-17 DOI: 10.26636/jtit.2023.4.1380

M. Głąbowski, M. Sobieraj

引用次数: 0

Radar Cross-section Reduction of Planar Absorbers Using Resistive FSS Unit Cells 利用阻性FSS单元格降低平面吸收器的雷达横截面

Journal of Telecommunications and Information Technology Pub Date : 2023-11-08 DOI: 10.26636/jtit.2023.4.1331

Mustafa B. Jasim, Khalil Sayidmarie

引用次数: 0

Pilot Agent-Driven Wireless Acoustic Sensor Network for Uninterrupted Data Transmission 不间断数据传输的试点代理驱动型无线声学传感器网络

Journal of Telecommunications and Information Technology Pub Date : 2023-11-07 DOI: 10.26636/jtit.2023.4.1322

Utpal Ghosh, U. K. Mondal

{"title":"Pilot Agent-Driven Wireless Acoustic Sensor Network for Uninterrupted Data Transmission","authors":"Utpal Ghosh, U. K. Mondal","doi":"10.26636/jtit.2023.4.1322","DOIUrl":"https://doi.org/10.26636/jtit.2023.4.1322","url":null,"abstract":"Wireless acoustic sensor networks (WASN) usually demand uninterrupted and reliable data transmissions and an efficient path from the source nodes to the destination nodes, thus ensuring reliable delivery of sensitive or critical data with the use of multipath routing protocols. This paper presents a novel agent-driven WASN relying on a set of static and mobile agents. In the proposed technique, the location address is functioned into the operating node and the destination node. Calculations of the midpoint between the operating and the destination nodes are followed by identifying the shortest path based on a reference axis, using a mobile agent and a location address. Such an approach aims to ensure maximum utilization of the communicating paths. Based on the information concerning partial topology of the network, the destination node computes the weight factor and multiple paths using node distances, energy ratios and efficiencies of specific links. Then, the destination node selects the appropriate path from the multiple paths available, to transmit the data. This article also analyzes the performance of the proposed system with various parameters taken into consideration and shows its efficiency in comparison to other existing techniques.","PeriodicalId":38425,"journal":{"name":"Journal of Telecommunications and Information Technology","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139287592","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

Designing Eight-port Antenna Array for Multi-Band MIMO Applications in 5G Smartphones 面向5G智能手机多频段MIMO应用的八端口天线阵列设计

Journal of Telecommunications and Information Technology Pub Date : 2023-10-31 DOI: 10.26636/jtit.2023.4.1297

Zainab Faydhe Al-Azzawi, Rusul Khalid AbdulSattar, Muhannad Muhsin, Mohammed Abdulrazzaq, Ali Salim, Jawad K. Ali

{"title":"Designing Eight-port Antenna Array for Multi-Band MIMO Applications in 5G Smartphones","authors":"Zainab Faydhe Al-Azzawi, Rusul Khalid AbdulSattar, Muhannad Muhsin, Mohammed Abdulrazzaq, Ali Salim, Jawad K. Ali","doi":"10.26636/jtit.2023.4.1297","DOIUrl":"https://doi.org/10.26636/jtit.2023.4.1297","url":null,"abstract":"This article introduces a dual-functional low-profile compact multiple input multiple output (MIMO) antenna array for multi-band communication in 5G smartphones. The proposed eight elements of the antenna array form two different 4×4 MIMO systems. The first four elements are placed at the four mobile corners and operate in a single band of 3.445-3.885 GHz for 5G n77 and n78 applications. The other system, in which four antennas are positioned in the middle of the terminal board, supports two wide bands of 1.684-2.300 GHz and 4.432-5.638 for n2, n3, n39, n65, n66, n79, and WLAN applications. The second iteration of a modified Peano-type fractal geometry served as the design foundation for the proposed antenna element. The system's ground plane design is based on self-isolated and spatial diversity methods. The single-band MIMO system's isolation is better than 23 dB. In the dual-band MIMO system that is based on self-isolation, isolation equals approximately 16 dB in the higher band and 10 dB in the lower band. To evaluate performance, radiation-related and total antenna efficiencies, scattering parameters and gains were investigated. Additionally, ECCs have been considered to evaluate MIMO performance. According to the results, such design constitutes a valuable option for MIMO applications in 5G smartphones.","PeriodicalId":38425,"journal":{"name":"Journal of Telecommunications and Information Technology","volume":"446 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135928955","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

An Efficient Controller Placement Algorithm using Clustering in Software Defined Networks 软件定义网络中一种有效的聚类控制器布局算法

Journal of Telecommunications and Information Technology Pub Date : 2023-10-31 DOI: 10.26636/jtit.2023.4.1371

Joshua Jacob, Sumedha Shinde, Narayan D.G.

{"title":"An Efficient Controller Placement Algorithm using Clustering in Software Defined Networks","authors":"Joshua Jacob, Sumedha Shinde, Narayan D.G.","doi":"10.26636/jtit.2023.4.1371","DOIUrl":"https://doi.org/10.26636/jtit.2023.4.1371","url":null,"abstract":"Software-defined networking (SDN) is an emerging network paradigm that separates the control plane from data plane and provides programmable network management. The control plane within SDN is responsible for decision-making, while packet forwarding is handled by the data plane based on flow entries defined by the control plane. The placement of controllers is an important research issue that significantly impacts performance of SDN. In this work, we utilize clustering algorithms to group networks into multiple clusters and propose an algorithm for optimal controller placement within each cluster. Initially, using the silhouette score, we determine the optimal number of controllers for various topologies. Additionally, to enhance network performance, we employ the meeting point algorithm to calculate the optimal location for placing the controller within each cluster. We implement the proposed work in the Mininet emulator with POX as the SDN controller. Furthermore, we compare our proposed approach to existing work in terms of throughput, delay, and jitter using six topologies from the Internet Zoo dataset.","PeriodicalId":38425,"journal":{"name":"Journal of Telecommunications and Information Technology","volume":"9 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135928240","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

Searching for an Efficient System of Equations Defining the AES Sbox for the QUBO Problem 为QUBO问题寻找定义AES Sbox的有效方程组

Journal of Telecommunications and Information Technology Pub Date : 2023-10-31 DOI: 10.26636/jtit.2023.4.1340

Elżbieta Burek, Krzysztof Mańk, Michał Wroński

引用次数: 0

Deep Classifiers and Wavelet Transformation for Fake Image Detection 基于深度分类器和小波变换的假图像检测

Journal of Telecommunications and Information Technology Pub Date : 2023-10-31 DOI: 10.26636/jtit.2023.4.1336

Stanislaw Osowski, Maciej Golgowski

引用次数: 0

Synthesizing Non-Uniformly Excited Antenna Arrays Using Tiled Subarray Blocks 利用平铺子阵块合成非均匀激励天线阵列

Journal of Telecommunications and Information Technology Pub Date : 2023-10-31 DOI: 10.26636/jtit.2023.4.1417

Jafar Ramadhan Mohammed

{"title":"Synthesizing Non-Uniformly Excited Antenna Arrays Using Tiled Subarray Blocks","authors":"Jafar Ramadhan Mohammed","doi":"10.26636/jtit.2023.4.1417","DOIUrl":"https://doi.org/10.26636/jtit.2023.4.1417","url":null,"abstract":"Conventionally, non-uniformly excited antenna arrays are synthesized by independently determining the excitation amplitude and phase of each single element. Such an approach is considered to be the most expensive and complex design method available. In this paper, the tilling technique is harnessed to synthesize non-uniformly excited antenna arrays. To apply this technique, the array elements are first divided into different subarray shapes, such as rectangles or squares known as tiles. The use of rectangular tile blocks instead of a single element architecture greatly simplifies the array design process and reduces array complexity. Next, the problem concerned with synthesizing sub-arrays comprising rectangular tile blocks is formulated and solved by using horizontal and vertical orientations of tiles having different shapes and sizes, and their larger integer expansions. The third approach to tiled design is a mixture of both previous tile architectures. A genetic algorithm is used to design such tiled arrays offering optimum sidelobe levels, beam width, directivity and taper efficiency. Simulation results demonstrated the effectiveness of the proposed tiled arrays.","PeriodicalId":38425,"journal":{"name":"Journal of Telecommunications and Information Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135927864","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