Journal of Communications最新文献_第8页

Prediction of the creep coefficient of green concretes containing ground granulated blast furnace slag using hybridized multi-objective ANN and Salp swarm algorithm 基于混合多目标人工神经网络和Salp群算法的含矿渣粉绿色混凝土蠕变系数预测

Journal of Communications Pub Date : 2021-01-02 DOI: 10.36756/JCM.V2.2.1R

Amirreza Kandiri, F. Fotouhi

引用次数: 1

An Interference Assessment between New Unlicensed Wireless Connectivity and Outside Broadcasting Service in the 6 GHz Band 新的无牌无线连接与6ghz频段外部广播服务之间的干扰评估

Journal of Communications Pub Date : 2021-01-01 DOI: 10.12720/jcm.16.11.479-484

Seung-Nam Kim, I. Lee, Bubjoo Kang

引用次数: 0

DGS Loaded Broadband Circular Patch Antenna for Satellite Communications 卫星通信用DGS加载宽带圆形贴片天线

Journal of Communications Pub Date : 2021-01-01 DOI: 10.12720/jcm.16.11.485-491

N. Rao, V. Tallapragada, D. V. Reddy, K. Prasad

引用次数: 4

Performance Comparison of Non-Linear Median Filter Built on MLP-ANN and Conventional MLP-ANN: Using Improved Dataset Training in Micro-Cell Environment 基于MLP-ANN和传统MLP-ANN的非线性中值滤波器性能比较:基于改进数据集训练的微单元环境

Journal of Communications Pub Date : 2021-01-01 DOI: 10.12720/jcm.16.11.508-515

V. C. Ebhota, V. Srivastava

{"title":"Performance Comparison of Non-Linear Median Filter Built on MLP-ANN and Conventional MLP-ANN: Using Improved Dataset Training in Micro-Cell Environment","authors":"V. C. Ebhota, V. Srivastava","doi":"10.12720/jcm.16.11.508-515","DOIUrl":"https://doi.org/10.12720/jcm.16.11.508-515","url":null,"abstract":"This research work explores the Levenberg- Marquardt training algorithm used for Artificial Neural Network (ANN) optimization during training and the Bayesian Regularization algorithm for the enhanced generalized trained network in training a designed non-linear vector median filter built on Multi-Layer Perceptron (MLP) ANN called model-1 and a conventional MLP ANN called model-2. The model-1 employed in the design helps in dataset de-noising to ensure the removal of unwanted signals for the improved training dataset. An early stopping method in the ratio of 80:10:10 for training, testing, and validation to overcome the problem of over-fitting during network training was employed. First-order statistical indices, the standard deviation, root mean squared error, mean absolute error, and correlation coefficient were adopted for network training analysis and comparative analysis of the designed model-1 and model-2, respectively. Two locations, Line-of-sight (location-1) and non-Line-of-Sight (location-2), were considered where the dataset was captured. The training results from the two locations for the two models demonstrated improved prediction of signal power loss using model-1 in comparison to model-2. For instance, the correlation coefficient, which shows the strength of the predicted value to the measured values (closer to 1) establishing a strong connection, gives 0.990 and 0.995 using model-1 for location-1, training with Lavenberg-Marquardt and Bayesian Regularization algorithm, respectively and 0.965 and 0.980 for model-2 using the same algorithms. It is seen that the Bayesian regularization algorithm, which optimizes the network in accordance with the Levenberg- Marquardt algorithm, gave better prediction results. The same sequence of improved perditions using designed model-1 in comparison to model-2 were seen with training results in location-2 while also adopting other employed 1st order statistical indices.","PeriodicalId":53518,"journal":{"name":"Journal of Communications","volume":"16 1","pages":"508-515"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66343507","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 Analysis of 5G Stand Alone Inter-band Carrier Aggregation 5G独立带间载波聚合性能分析

Journal of Communications Pub Date : 2021-01-01 DOI: 10.12720/jcm.16.11.492-499

A. Hikmaturokhman, Levina Anora, Solichah Larasati, A. Sukarno, Rizky Syafrullah, Khoirun Ni’amah

{"title":"Performance Analysis of 5G Stand Alone Inter-band Carrier Aggregation","authors":"A. Hikmaturokhman, Levina Anora, Solichah Larasati, A. Sukarno, Rizky Syafrullah, Khoirun Ni’amah","doi":"10.12720/jcm.16.11.492-499","DOIUrl":"https://doi.org/10.12720/jcm.16.11.492-499","url":null,"abstract":"Today, high data rate is the prior requirement to support services and applications. It is definitely a challenge for the 5G New Radio (NR) in providing high data rates, in order to support use cases, especially enhanced Mobile Broadband (eMBB). The objective of this research is to design a 5G network which has greater data rates employing carrier aggregation techniques. Carrier Aggregation (CA) is a way which is able to improve data rates by aggregate component carriers, hence, it can make a wider bandwidth. There are three modes of CA scenario that can be used: intra-band contiguous CA, intra-band non-contiguous CA, and inter-band noncontiguous CA. In this research, the 5G network planning with carrier aggregation on inter-band employing bandwidth 40 MHz at frequency 2300 MHz and bandwidth 100 MHz at frequency 3500 MHz was simulated in Mentum Planet software. The simulation implemented at Marunda Center Industrial Area in Bekasi used downlink outdoor-to-indoor (O2I) with Line of Sight (LOS) scenario. The parameters analyzed in this research employed three main parameters: SS-RSRP, SS-SINR and data rate, which resulted CA SS-RSRP increased by 0.14%, SSSINR increased by 4.48%, and peak data rate increased up to 1412.26 Mbps from 312.872 Mbps","PeriodicalId":53518,"journal":{"name":"Journal of Communications","volume":"16 1","pages":"492-499"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66343471","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

Employing Keyed Hash Algorithm, Sequential Probability Ratio Test, and Temperature Comparison Test as Security Against Node Capture Attacks of IoT-Based WSNs 采用键控哈希算法、顺序概率比测试和温度比较测试作为物联网wsn节点捕获攻击的安全防护

Journal of Communications Pub Date : 2021-01-01 DOI: 10.12720/jcm.16.11.500-507

Jhon Aron F. Varca, Earl Nestor T. Velasquez, Joseph Bryan G. Ibarra

{"title":"Employing Keyed Hash Algorithm, Sequential Probability Ratio Test, and Temperature Comparison Test as Security Against Node Capture Attacks of IoT-Based WSNs","authors":"Jhon Aron F. Varca, Earl Nestor T. Velasquez, Joseph Bryan G. Ibarra","doi":"10.12720/jcm.16.11.500-507","DOIUrl":"https://doi.org/10.12720/jcm.16.11.500-507","url":null,"abstract":"The emergence of IoT opened new opportunities for development in various fields. With all the information that it gathers, it became an interesting target for multiple attackers. Thus, this study will enforce security solutions to IoT-based devices specifically in the perception layer by incorporating a Temperature Comparison Test, Keyed Hash Algorithm and evaluating it using SPRT especially in the defense against malicious activities detected in the nodes of a network namely for Mobile and Immobile attacks. For immobile attacks, using the keyed hash algorithm and the SPRT, the hash key of the passcodes was compared to determine the safety of the nodes. Hence, from the functionality test that was conducted, and evaluating the data gathered using SPRT and Bernoulli’s equation, the reliability of the protocol to detect Immobile attacks is concluded to have a 100% detection rate. For mobile node attacks, the study assumes the environment to be under normal, warm, and cold room temperatures. where both mobile and without mobile attack is simulated, the result shows that there is only an overall 3% difference from the temperature measure by the sensor to the ambient temperature. Hence, combining these protocols that are applied in the study eliminates the single points of failure in the nodes that are either applicable only to a distributed scheme or mobility support, the study also compared the tested protocol to the other existing protocols.","PeriodicalId":53518,"journal":{"name":"Journal of Communications","volume":"16 1","pages":"500-507"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66343428","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

PAPR Reduction in MIMO-OFDM Systems Using Low- Complexity Additive Signal Mixing 使用低复杂度加性信号混合降低MIMO-OFDM系统的PAPR

Journal of Communications Pub Date : 2021-01-01 DOI: 10.12720/jcm.16.11.468-478

Stephen Kiambi, E. Mwangi, G. Kamucha

{"title":"PAPR Reduction in MIMO-OFDM Systems Using Low- Complexity Additive Signal Mixing","authors":"Stephen Kiambi, E. Mwangi, G. Kamucha","doi":"10.12720/jcm.16.11.468-478","DOIUrl":"https://doi.org/10.12720/jcm.16.11.468-478","url":null,"abstract":"A MIMO-OFDM wireless communication technique possesses several advantages accrued from combining MIMO and OFDM techniques such as increased channel capacity and improved BER performance. This has made the technique very amiable to current and future generations of communication systems for high data-rate transmission. However, the technique also inherits the high PAPR problem associated with OFDM signals—a problem still requiring a practical solution. This work proposes a PAPR reduction algorithm for solving the problem of high PAPR in MIMO-OFDM systems. The proposed method uses a low-complexity signal mixing concept to combine the original transmit signal and a generated peak-cancelling signal. The computational complexity of the proposed method is O(M) , which is very much less than O(N log2 N) of the FFT algorithms. This is because M, which denotes the number of nonzero peakcancelling samples, is much less than N, the FFT window size. The proposed method was found to achieve high PAPR reductions while utilizing only a few nonzero peak-cancelling samples and it does not significantly change the power of the transmitted signal. For example, with M=5% of 256-point IFFT samples, corresponding to a data rate loss of 4.8%, a large PAPR reduction of 5.9 dB could be achieved at a small power loss of 0.09 dB. Compared with other methods proposed in literature, the proposed method was found to outperform them in terms of PAPR reductions and BER performance.","PeriodicalId":53518,"journal":{"name":"Journal of Communications","volume":"121 1","pages":"468-478"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66343179","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: 5

Blockchain trading mechanism based on attached chain for the delay tolerant network 时延容忍网络中基于附加链的区块链交易机制

Journal of Communications Pub Date : 2020-11-25 DOI: 10.11959/J.ISSN.1000-436X.2020234

Lingling Zi, Xin Cong

引用次数: 0

Electromagnetic signal modulation recognition technology based on lightweight deep neural network 基于轻量级深度神经网络的电磁信号调制识别技术

Journal of Communications Pub Date : 2020-11-25 DOI: 10.11959/J.ISSN.1000-436X.2020237

Sicheng Zhang, Yun Lin, Ya Tu, S. Mao

引用次数: 13

Constructions of rotation symmetric 2-resilient functions with 4t-1 number of variables 4t-1个变量的旋转对称2-弹性函数的构造

Journal of Communications Pub Date : 2020-11-25 DOI: 10.11959/J.ISSN.1000-436X.2020213

J. Du, Chunhong Liu, S. Pang

引用次数: 0