{"title":"An Improved LT Encoding Algorithm Based on Reselecting Check Nodes","authors":"Xin Song, Naiping Cheng, Shuyan Ni, Tuofeng Lei, LingFeng Cheng","doi":"10.1109/ICCSN52437.2021.9463627","DOIUrl":"https://doi.org/10.1109/ICCSN52437.2021.9463627","url":null,"abstract":"LT codes can be used for adaptive data transmission without feedback, but there exists a high error floor for LT codes in additive white Gaussian noise (AWGN) channels. Therefore, an improved encoding scheme is designed to eliminate the low-degree information nodes which caused the error floor. Firstly, the conventional scheme is used to provide an initial information degree distribution. Then, the threshold is introduced, and the information nodes are classified according to their degrees. The information nodes whose degree is less than the threshold will reconnect check nodes. Finally, all the information nodes will obtain a reliable degree not less than the threshold. Simulation results show that the proposed scheme increases the decoding success probabilities, and thereby the bit error rate (BER) performance is significantly improved. For example, the error floor can be reduced by nearly 4 orders of magnitude when the code length is 256.","PeriodicalId":263568,"journal":{"name":"2021 13th International Conference on Communication Software and Networks (ICCSN)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125476659","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}
{"title":"Design of On-Chip Bus Arbitration Algorithm Based on Game Theory","authors":"Jin-wu Wu, Bo Jiang, Hong-xun Xu","doi":"10.1109/ICCSN52437.2021.9463653","DOIUrl":"https://doi.org/10.1109/ICCSN52437.2021.9463653","url":null,"abstract":"In this paper, we propose a new bus arbitration algorithm based on game theory. Since the arbitration algorithm is essentially to deal with the conflict relationship between multiple processors, and game theory is also a professional theory of contradictions and conflicts, it is logic to take the game theory into the bus arbitration algorithm. Firstly, according to the system framework, the contention of multiple processors on the bus is abstracted into a multi-person non-cooperative game, and a game model is established accordingly. Secondly, according to this model, formulate the income function to find the equilibrium point of the game. Finally, through experiments for comparison and verification, the analysis shows that the performance of the game algorithm is better than the classic arbitration algorithm.","PeriodicalId":263568,"journal":{"name":"2021 13th International Conference on Communication Software and Networks (ICCSN)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128060473","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}
{"title":"Resource-Constrained Unmanned Aerial Vehicle Cluster Autonomous Wireless Communication Security Scheme","authors":"Zhen Wang, Bo Jiang, Hong-xun Xu","doi":"10.1109/ICCSN52437.2021.9463621","DOIUrl":"https://doi.org/10.1109/ICCSN52437.2021.9463621","url":null,"abstract":"UAVs are gradually playing an important role in many civilian or military applications. With the rise of its important status, the accompanying security issues have been paid more and more attention. In this paper, we summarize the problems of small UAV cluster communication networks, and introduce the implementation of secure communication scheme in detail. By expanding the communication protocol could achieve cluster autonomous communication. Not only ensuring the security of the protocol, but also greatly saves the consumption of computing resources, energy, and significantly improves the efficiency of communication because the UAV is Resource-Constrained.","PeriodicalId":263568,"journal":{"name":"2021 13th International Conference on Communication Software and Networks (ICCSN)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133425102","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}
Junlei Song, Ruiqi Cao, F. Jin, K. Dong, W. Mo, Y. Hui
{"title":"Design and Optimization of Miniaturized Single Frequency Point Inductive Magnetic Sensor","authors":"Junlei Song, Ruiqi Cao, F. Jin, K. Dong, W. Mo, Y. Hui","doi":"10.1109/ICCSN52437.2021.9463609","DOIUrl":"https://doi.org/10.1109/ICCSN52437.2021.9463609","url":null,"abstract":"Nowadays, in the field of magnetic detection, the combination of magnetic sensors and multirotor unmanned aerial vehicle (UAV) is more and more widely used. Multirotor UAV has certain requirements for the volume and sensitivity of the sensor. For the detection of weak magnetic field signals at single frequency point, the sensitivity, accuracy, and volume of the inductive magnetic sensors still have a large room to improve. Based on theoretical analysis and simulation, this paper added a cylindrical high permeability sheet on both sides of the magnetic core in this paper to improve the sensitivity of the sensor. The advantage of this method is that it will not increase the volume and weight of the sensor while greatly improving the sensitivity; Meanwhile, through the analysis of the crosstalk between the cores of the triaxial inductive magnetic sensor, an applicable spacing is obtained among the triaxial coils, so that the crosstalk voltage is under the resolution of the induction coil, the crosstalk effect can be ignored. The initial sensitivity of the induction coil designed in this paper can reach 0.20mV/nT@380Hz. The maximum equivalent magnetic crosstalk is about 6.45pT, which is suitable for the application of single frequency array magnetic measurement.","PeriodicalId":263568,"journal":{"name":"2021 13th International Conference on Communication Software and Networks (ICCSN)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114162683","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}
Lei Lang, Jing-ning Wang, Yi Wang, Zitao Zhao, Bo Tang, Qiang Xu
{"title":"Terahertz High Speed Parallel Signal Processing Structure","authors":"Lei Lang, Jing-ning Wang, Yi Wang, Zitao Zhao, Bo Tang, Qiang Xu","doi":"10.1109/ICCSN52437.2021.9463651","DOIUrl":"https://doi.org/10.1109/ICCSN52437.2021.9463651","url":null,"abstract":"With the gradual exhaustion of low frequency spectrum resources, the working frequency band of wireless communication is developing towards the terahertz frequency band, and communication rate is gradually increasing. Therefore, the physical layer digital baseband system is required to generate a larger bandwidth, higher-order modulation signal, and carry a higher amount of data. Due to the limitation of the operating frequency of the system core (such as FPGA), high speed signal processing mostly adopts multi-channel parallel processing. In the paper, a special parallel processing structure is designed for the difficulty of engineering realization of ultra-high bandwidth; then, the key scheme design in the transmitter and receiver is completed based on this structure.","PeriodicalId":263568,"journal":{"name":"2021 13th International Conference on Communication Software and Networks (ICCSN)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122126186","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}
{"title":"Heart Rate and Heart Rate Variability as Classification Features for Mental Fatigue Using Short-Term PPG Signals Via Smartphones Instead of ECG Recordings","authors":"Yaru Yue, Dongjie Liu, Shoudong Fu, Xiaoguang Zhou","doi":"10.1109/ICCSN52437.2021.9463614","DOIUrl":"https://doi.org/10.1109/ICCSN52437.2021.9463614","url":null,"abstract":"The real-time detection and prediction of mental fatigue, mood and stress have received more and more attention the last few years. Mental fatigue can bring health hidden trouble to human body, make the women suffer from mammary gland cyst and uterine fibroid extremely easily, the men suffer from liver cyst and thyroid tumor. Photoplethysmography (PPG) technology is more suitable than Electrocardiography (ECG) for the real-time detection of human physiological signal via smartphones, smartwatches, and wearable sensors to prevent fatigue. Since PPG signal is vulnerable to interference, the polynomial fitting method and Savitzky-Golay (SG) filtering method were used to remove baseline wander and smooth waveform. Then, the adaptive peak-seeking algorithm was used to extract the R-peaks, and the heart rate (HR) were calculated based on R-R intervals (RRIs). The Welch spectrum estimation was used to obtain the spectrum diagram, and high-frequency component power (HF), low-frequency component power (LF) and the ratio of high-frequency component power and low-frequency component power (LF/HF) of heart rate variability (HRV) were calculated. The results of feature analysis showed that RRIs and frequency domain characteristics would change with the degree of mental fatigue rooting in physiological activities in a day. In the afternoon, HR would increase, while LF/HF and LF would decrease. In the evening, when the mind was extremely tired, HR would decrease, while LF/HF and LF would increase. The feature analysis also showed that HR of girls (76.15±10.462) was significantly higher than that of boys (70.82±10.326). These results of feature analysis indicated that sympathetic and parasympathetic nerves would self-regulate according to different mental fatigue levels, resulting in changes of HR, frequency domain characteristics of HRV. Further, the accuracy and specificity of mental fatigue classification were achieved 92.26% and 96.12% respectively. Therefore, we can detect the degree of mental fatigue based on HR and HRV in practice.","PeriodicalId":263568,"journal":{"name":"2021 13th International Conference on Communication Software and Networks (ICCSN)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122701911","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}
Wu Shaocheng, Ma Yue, Liang Honghao, Chen Xiaowei, Huang Wenqian, Li Xiang
{"title":"A Novel Design about AMI's Online Supporting System","authors":"Wu Shaocheng, Ma Yue, Liang Honghao, Chen Xiaowei, Huang Wenqian, Li Xiang","doi":"10.1109/ICCSN52437.2021.9463620","DOIUrl":"https://doi.org/10.1109/ICCSN52437.2021.9463620","url":null,"abstract":"With the construction and development of digital grid and the generation of massive electricity consumption data, how to achieve the collection and management of unified metering data from multi-service applications and to optimize the control method of Advanced metering infrastructure (AMI) has been a hotspot of current research. Herein, a unified AMI system across security zones was designed, which used the digital twin auxiliary information system as a supporting system to simulate a multi-service data model. With the comprehensive analysis of the digital twin auxiliary information system to the running results from the model, the collection system could grasp the needs of the application system in real time, thereby dynamically adjusting collection frequency. Furthermore, field running test on this system was carried out in the Measurement Center of Shenzhen Power Supply Bureau, and it verified that the system had the ability to collect data in seconds. the simulation results were analyzed to adjust collection time interval taking load forecasting and spot trading business as examples, using forecast accuracy and power purchase cost as indicators. Finally, it is determined that when the collection frequency is one minute, it could meet the indicator that the average absolute percentage error of load forecast was less than 1%. And in the meantime, the purchase cost deviation of the electricity sellers was much smaller than the 2% error specified by the standard.","PeriodicalId":263568,"journal":{"name":"2021 13th International Conference on Communication Software and Networks (ICCSN)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126338671","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}
{"title":"Interference Coordination for Autonomous HetNets Based on Adversarial Learning","authors":"Mu Yan, Jian Yang","doi":"10.1109/ICCSN52437.2021.9463652","DOIUrl":"https://doi.org/10.1109/ICCSN52437.2021.9463652","url":null,"abstract":"This paper proposes an intelligent inter-cell interference coordination (ICIC) scheme for autonomous heterogeneous networks (HetNets), where the SBSs agilely schedule sub-channels to individual users at each Transmit Time Interval (TTI) with aim of mitigating interferences and maximizing long-term throughput by sensing the environment. As only local network states including the Signal to Interference plus Noise Ratio (SINR) can be observed in the autonomous HetNets, the decision-making process of the interference coordination at SBSs is modeled as a non-cooperative partially observable Markov decision process (POMDP) game, with aim to achieve Nash Equilibrium. Since the reward function is inexplicit and only few samples can be used for prior-training, we formulate the ICIC problem as a distributed inverse reinforcement learning (IRL) problem following the POMDP games. Furthermore, we propose a non-prior knowledge based self-imitating learning (SIL) algorithm which incorporates Wasserstein Generative Adversarial Networks (WGANs) and Double Deep Q Network (Double DQN) algorithms for performing behavior imitation and few-shot learning in solving the IRL problem from both the policy and value. In order to cater for the plug-and-play operation mode of indoor SBSs, the Double DQN is initialized according to the SINR, and a nested training scheme is adopted to overcome the slow-start problem of the learning process. Numerical results reveal that SIL is able to implement TTI level’s decision-making to solve the ICIC problem, and the overall network throughput of SIL can be improved by up to 19.8% when compared with other known benchmark algorithms.","PeriodicalId":263568,"journal":{"name":"2021 13th International Conference on Communication Software and Networks (ICCSN)","volume":"2003 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129674837","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}
Yuan Liu, Minglin Yang, Jianqiang Li, Zhengrong Lai, K. Guan
{"title":"Radio Propagation Models for TDOA Localization Performance Evaluation Exploiting Ray Tracer","authors":"Yuan Liu, Minglin Yang, Jianqiang Li, Zhengrong Lai, K. Guan","doi":"10.1109/ICCSN52437.2021.9463599","DOIUrl":"https://doi.org/10.1109/ICCSN52437.2021.9463599","url":null,"abstract":"In this paper, a deterministic channel model based on ray tracing (RT) is utilized to evaluate how the wave propagation mechanisms influence the realistic localization systems. Three-dimensional (3D) information of a university campus scenario with dense buildings is used for trials. RT is utilized to generate channel impulse responses (CIRs) between the targets and positioning nodes (sensors) under three frequency bands with various propagation mechanisms, e.g., multiple reflection, scattering, diffraction, and their combinations. Therewith, the CIRs are utilized to estimate target locations. The significance of this work lies in: (1) providing a measurement-free approach which is able to effectively evaluate the localization performances of realistic environment; (2) revealing how environment models and wave propagation mechanisms influence the localization performances. The proposed method can be easily transferred to evaluate other localization methods and to optimize deployment of localization sensor networks.","PeriodicalId":263568,"journal":{"name":"2021 13th International Conference on Communication Software and Networks (ICCSN)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128255896","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}
Xuebo Zhang, Yingting Liu, Yaqian Liu, Xiangyu Deng
{"title":"Doppler Centroid Estimation for Multireceiver SAS","authors":"Xuebo Zhang, Yingting Liu, Yaqian Liu, Xiangyu Deng","doi":"10.1109/ICCSN52437.2021.9463593","DOIUrl":"https://doi.org/10.1109/ICCSN52437.2021.9463593","url":null,"abstract":"For high-quality synthetic aperture SAS (SAS) processing, Doppler centroid estimation is an essential issue that can help us to solve the SAS platform’s motion parameters conversely, construct azimuth matching function and is important for target location as well. In this paper, the Doppler centroid is estimated based on the energy balancing method, which uses two important functions, i. e., filter function and nominal azimuth signal power spectral density. Considering that the nominal azimuth signal power spectral density is often difficult to be obtained, it is approximately substituted by the average azimuth spectrum. The Doppler centroid can be obtained by inspecting the value of convolution result in the x-axis when y-axis is close to zero. At last, the presented method is validated by using the simulated data and real data.","PeriodicalId":263568,"journal":{"name":"2021 13th International Conference on Communication Software and Networks (ICCSN)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128273838","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}