Pub Date : 2023-06-14DOI: 10.1109/BMSB58369.2023.10211491
Jincan Xin, Sen Xu, Hua Xu, Hua Zhang
Extended reality (XR) has recently attracted growing interest from consumers, industries, and public institutions. XR is a broad definition containing augmented reality, mixed reality, and virtual reality. Different from URLLC, XR traffic has multiple periodic data streams for one user. Based on the analysis of XR, the paper investigates some enhanced resource allocation and scheduling schemes to improve the user experience, while maintaining low power consumption and resources. It is proposed to introduce a playout buffer at UE to improve scheduling flexibility. In addition, to assist the gNB allocate the resource more efficiently, the priority classification and time-aligned transmission mechanisms are introduced. Finally, the paper demonstrates that joint resource allocation and scheduling optimization schemes can significantly reduce resource and power consumption.
{"title":"Joint resource allocation and scheduling optimization for XR traffic","authors":"Jincan Xin, Sen Xu, Hua Xu, Hua Zhang","doi":"10.1109/BMSB58369.2023.10211491","DOIUrl":"https://doi.org/10.1109/BMSB58369.2023.10211491","url":null,"abstract":"Extended reality (XR) has recently attracted growing interest from consumers, industries, and public institutions. XR is a broad definition containing augmented reality, mixed reality, and virtual reality. Different from URLLC, XR traffic has multiple periodic data streams for one user. Based on the analysis of XR, the paper investigates some enhanced resource allocation and scheduling schemes to improve the user experience, while maintaining low power consumption and resources. It is proposed to introduce a playout buffer at UE to improve scheduling flexibility. In addition, to assist the gNB allocate the resource more efficiently, the priority classification and time-aligned transmission mechanisms are introduced. Finally, the paper demonstrates that joint resource allocation and scheduling optimization schemes can significantly reduce resource and power consumption.","PeriodicalId":13080,"journal":{"name":"IEEE international Symposium on Broadband Multimedia Systems and Broadcasting","volume":"65 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88673091","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}
Pub Date : 2023-06-14DOI: 10.1109/BMSB58369.2023.10211194
Yaqi Song, Yun Shen
In virtual reality scene, computing offloading is a potential technology to improve rendering and drive applications to the ground. However, MEC servers are usually deployed in a fixed manner in base stations with different demands on computational resources, so in this paper, deep reinforcement learning and digital twin techniques are integrated into an edge computing framework to reduce computational latency and transmission latency in virtual reality scenarios so that different computational resource demands can be met. It designs an computing offloading process for virtual reality scenarios, which is solved by deep reinforcement learning algorithms. Simulation results show that the proposed method can improve the transmission latency and computation latency of multimedia data under virtual reality.
{"title":"Computing Offloading Based on Deep Reinforcement Learning For Virtual Reality Scene","authors":"Yaqi Song, Yun Shen","doi":"10.1109/BMSB58369.2023.10211194","DOIUrl":"https://doi.org/10.1109/BMSB58369.2023.10211194","url":null,"abstract":"In virtual reality scene, computing offloading is a potential technology to improve rendering and drive applications to the ground. However, MEC servers are usually deployed in a fixed manner in base stations with different demands on computational resources, so in this paper, deep reinforcement learning and digital twin techniques are integrated into an edge computing framework to reduce computational latency and transmission latency in virtual reality scenarios so that different computational resource demands can be met. It designs an computing offloading process for virtual reality scenarios, which is solved by deep reinforcement learning algorithms. Simulation results show that the proposed method can improve the transmission latency and computation latency of multimedia data under virtual reality.","PeriodicalId":13080,"journal":{"name":"IEEE international Symposium on Broadband Multimedia Systems and Broadcasting","volume":"96 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84724988","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}
Pub Date : 2023-06-14DOI: 10.1109/BMSB58369.2023.10211370
Haojia Zhang, Shuai Han, Xinxing Lin
This paper introduces the traditional channel estimation based on singular value decomposition (SVD). Based on the SVD algorithm, the channel matrix composed of the maximum KL singular vector is obtained by SVD decomposition of the received signal covariance matrix. At this time, the estimation matrix has a certain ambiguity, and then the LS algorithm of the short pilot sequence is used to accurately estimate the channel matrix. This channel estimation scheme is unbiased in the ideal case, but in the actual implementation, the average approximation of the covariance matrix of the received signal is required, which leads to the deterioration of the actual channel matrix estimation, which is quite different from the theoretical value. Therefore, we derive the closed mean square error (MSE) of the channel estimation that characterizes the above error sources, so as to deeply understand the influence of the above error sources on the estimation algorithm. And compare with Cramer-Rao bound(CRB). The data results verify this analysis.
{"title":"On the Performance of SVD-Based Channel Estimations in Large-Scale Multi-Cell Multiuser MIMO Systems","authors":"Haojia Zhang, Shuai Han, Xinxing Lin","doi":"10.1109/BMSB58369.2023.10211370","DOIUrl":"https://doi.org/10.1109/BMSB58369.2023.10211370","url":null,"abstract":"This paper introduces the traditional channel estimation based on singular value decomposition (SVD). Based on the SVD algorithm, the channel matrix composed of the maximum KL singular vector is obtained by SVD decomposition of the received signal covariance matrix. At this time, the estimation matrix has a certain ambiguity, and then the LS algorithm of the short pilot sequence is used to accurately estimate the channel matrix. This channel estimation scheme is unbiased in the ideal case, but in the actual implementation, the average approximation of the covariance matrix of the received signal is required, which leads to the deterioration of the actual channel matrix estimation, which is quite different from the theoretical value. Therefore, we derive the closed mean square error (MSE) of the channel estimation that characterizes the above error sources, so as to deeply understand the influence of the above error sources on the estimation algorithm. And compare with Cramer-Rao bound(CRB). The data results verify this analysis.","PeriodicalId":13080,"journal":{"name":"IEEE international Symposium on Broadband Multimedia Systems and Broadcasting","volume":"45 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84814925","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}
Pub Date : 2023-06-14DOI: 10.1109/BMSB58369.2023.10211196
Xinchi Li, Xiaoqing Xia
In today's society, the importance of data at the policy, economic, social and technical levels has gradually become prominent, helping countries and enterprises to make overall and systematic decisions and promote high-quality economic development. Data is transformed into elements after a series of processes, and data elements have become an objective requirement for the development of the digital economy. Among them, data standardization is the basic link of data transformation into data elements. However, the current data standardization work lacks systematic planning. Cross-industry and cross-enterprise global information interconnection and intercommunication capabilities. In this paper, we proposes a distributed data identification and resolution system based on blockchain, eliminates central nodes, establishes a decentralized peer-to-peer network, and assigns a unique readable identifier to each data, so that each data is configured with a globally unique "ID card". At the same time, according to the structural characteristics, security attributes, business attributes and other content of the data itself, a more complete description information is established for the data.
{"title":"Researching on Identification and Resolution of Data Assets","authors":"Xinchi Li, Xiaoqing Xia","doi":"10.1109/BMSB58369.2023.10211196","DOIUrl":"https://doi.org/10.1109/BMSB58369.2023.10211196","url":null,"abstract":"In today's society, the importance of data at the policy, economic, social and technical levels has gradually become prominent, helping countries and enterprises to make overall and systematic decisions and promote high-quality economic development. Data is transformed into elements after a series of processes, and data elements have become an objective requirement for the development of the digital economy. Among them, data standardization is the basic link of data transformation into data elements. However, the current data standardization work lacks systematic planning. Cross-industry and cross-enterprise global information interconnection and intercommunication capabilities. In this paper, we proposes a distributed data identification and resolution system based on blockchain, eliminates central nodes, establishes a decentralized peer-to-peer network, and assigns a unique readable identifier to each data, so that each data is configured with a globally unique \"ID card\". At the same time, according to the structural characteristics, security attributes, business attributes and other content of the data itself, a more complete description information is established for the data.","PeriodicalId":13080,"journal":{"name":"IEEE international Symposium on Broadband Multimedia Systems and Broadcasting","volume":"6 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86696313","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}
Pub Date : 2023-06-14DOI: 10.1109/BMSB58369.2023.10211107
Ting Wang, Hong-Chuang Yang, Qi Li
The proliferation of data devices and wireless apps in the modern mobile environment has aided in the emergence of new content delivery techniques. Recent studies have shown that wireless caching is a successful method for resolving the conflict between the massive data traffic and the limited transmission rate. This study looks at a software-defined network caching strategy that uses two separate caches on mobile devices to store files with different popularity using different caching methods. It is possible to download the requested files locally, through device-to-device collaboration, or from cellular network. The cooperative caching strategy also aims to increase the cache hit probability. According to simulation results, the cache hit probability has been optimized through the caching strategy.
{"title":"Collaborative D2D Cache System Based on SDN Network","authors":"Ting Wang, Hong-Chuang Yang, Qi Li","doi":"10.1109/BMSB58369.2023.10211107","DOIUrl":"https://doi.org/10.1109/BMSB58369.2023.10211107","url":null,"abstract":"The proliferation of data devices and wireless apps in the modern mobile environment has aided in the emergence of new content delivery techniques. Recent studies have shown that wireless caching is a successful method for resolving the conflict between the massive data traffic and the limited transmission rate. This study looks at a software-defined network caching strategy that uses two separate caches on mobile devices to store files with different popularity using different caching methods. It is possible to download the requested files locally, through device-to-device collaboration, or from cellular network. The cooperative caching strategy also aims to increase the cache hit probability. According to simulation results, the cache hit probability has been optimized through the caching strategy.","PeriodicalId":13080,"journal":{"name":"IEEE international Symposium on Broadband Multimedia Systems and Broadcasting","volume":"29 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86961171","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}
Pub Date : 2023-06-14DOI: 10.1109/BMSB58369.2023.10211165
Cong Li, Jibin Sun, Yihao Sun, Chongfeng Xie
To solve the problem of insufficient address space and secure connection and management of massive terminals in the 5G Internet of Things scenario, this paper proposes an IPv6-based method for terminal authentication in 5G private networks. Firstly, the technical problems in 5G Internet of Things are analyzed. Secondly, an IPv6 based core network side terminal authentication method is put forward, and the system architecture and key methods in this scheme are described, including a novel device identifier generation method, adress configuration method and authentication method. It realizes the verification of unique terminal identification at IP network layer, effectively enhancing the security of terminal access and improving the efficiency of address management. Finally, this paper also analyzes the security properties of this scheme and compares it with other schemes. Analysis results of security among related protocols show that our solution outperforms other related schemes.
{"title":"An IPv6-based Identity Authentication Scheme for IoT Devices in 5G Private Network","authors":"Cong Li, Jibin Sun, Yihao Sun, Chongfeng Xie","doi":"10.1109/BMSB58369.2023.10211165","DOIUrl":"https://doi.org/10.1109/BMSB58369.2023.10211165","url":null,"abstract":"To solve the problem of insufficient address space and secure connection and management of massive terminals in the 5G Internet of Things scenario, this paper proposes an IPv6-based method for terminal authentication in 5G private networks. Firstly, the technical problems in 5G Internet of Things are analyzed. Secondly, an IPv6 based core network side terminal authentication method is put forward, and the system architecture and key methods in this scheme are described, including a novel device identifier generation method, adress configuration method and authentication method. It realizes the verification of unique terminal identification at IP network layer, effectively enhancing the security of terminal access and improving the efficiency of address management. Finally, this paper also analyzes the security properties of this scheme and compares it with other schemes. Analysis results of security among related protocols show that our solution outperforms other related schemes.","PeriodicalId":13080,"journal":{"name":"IEEE international Symposium on Broadband Multimedia Systems and Broadcasting","volume":"8 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86986681","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}
Pub Date : 2023-06-14DOI: 10.1109/BMSB58369.2023.10211199
Xiangguan Tan, Qingxin Xiang, Yuxia Zhang
To address the growing demands of diverse communication needs, microwave integrated circuits must support more functions, leading to increasingly complex microwave circuits. However, designing these complex circuits leads to inevitable issues of signal crosstalk and common-mode (CM) noise. To combat these problems, balanced-port circuits are preferred due to their superior ability to suppress signal crosstalk and common-mode noise compared to traditional single-port circuits. This paper summarizes the development status of tunable balanced couplers based on completed work.
{"title":"Development of Tunable Balanced Couplers in Balanced Antennas","authors":"Xiangguan Tan, Qingxin Xiang, Yuxia Zhang","doi":"10.1109/BMSB58369.2023.10211199","DOIUrl":"https://doi.org/10.1109/BMSB58369.2023.10211199","url":null,"abstract":"To address the growing demands of diverse communication needs, microwave integrated circuits must support more functions, leading to increasingly complex microwave circuits. However, designing these complex circuits leads to inevitable issues of signal crosstalk and common-mode (CM) noise. To combat these problems, balanced-port circuits are preferred due to their superior ability to suppress signal crosstalk and common-mode noise compared to traditional single-port circuits. This paper summarizes the development status of tunable balanced couplers based on completed work.","PeriodicalId":13080,"journal":{"name":"IEEE international Symposium on Broadband Multimedia Systems and Broadcasting","volume":"1 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89670464","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}
Pub Date : 2023-06-14DOI: 10.1109/BMSB58369.2023.10211229
Yang Wang, Duanyun Chen, Yuanchun Tang, Shuting Li, Juan Pan, Zhihui Wang, Ziyan Zhao
The increase of power system capacity leads to the existence of certain risks and hidden dangers in power grid construction. This paper proposes a bidirectional risk analysis and warning technology for power grid-communication network. First of all, by describing the link risks of power grid-communication network as a complex system composed of input, state, and output attributes, and through the functional relationship among attribute elements, the correlation among events is analyzed from the attribute level. Secondly, the Bayesian network is used as a modeling tool to identify the causal and coupling relationship among concurrent risk events, and construct a concurrent risk events chain model. The prior probability information among network nodes is obtained based on history data of the power grid-communication network, and the evolution analysis of emergency events is implemented by using Bayesian network inference algorithm to realize risk detection in advance and active early warning. Finally, the effectiveness of the proposed method is verified by simulation.
{"title":"Bidirectional Risk Analysis and Warning Technology for Power Grid-Communication Network","authors":"Yang Wang, Duanyun Chen, Yuanchun Tang, Shuting Li, Juan Pan, Zhihui Wang, Ziyan Zhao","doi":"10.1109/BMSB58369.2023.10211229","DOIUrl":"https://doi.org/10.1109/BMSB58369.2023.10211229","url":null,"abstract":"The increase of power system capacity leads to the existence of certain risks and hidden dangers in power grid construction. This paper proposes a bidirectional risk analysis and warning technology for power grid-communication network. First of all, by describing the link risks of power grid-communication network as a complex system composed of input, state, and output attributes, and through the functional relationship among attribute elements, the correlation among events is analyzed from the attribute level. Secondly, the Bayesian network is used as a modeling tool to identify the causal and coupling relationship among concurrent risk events, and construct a concurrent risk events chain model. The prior probability information among network nodes is obtained based on history data of the power grid-communication network, and the evolution analysis of emergency events is implemented by using Bayesian network inference algorithm to realize risk detection in advance and active early warning. Finally, the effectiveness of the proposed method is verified by simulation.","PeriodicalId":13080,"journal":{"name":"IEEE international Symposium on Broadband Multimedia Systems and Broadcasting","volume":"39 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89706168","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}
With the vigorous promotion of informatization, intelligence and ubiquity of power grid services, the flexible extension and extensive coverage of the end of power communication networks through the introduction of integrated communication terminals has become an important development direction. The deployment of integrated communication terminals affects the access range and service QoS of power service terminals. To address this issue, this paper investigates the deployment of multi-link integrated communication terminals in 5G integrated power communications network and proposes a multi-link integrated communication terminal deploying method to support the wide coverage of power 5G. Firstly, a multi-link optimization model for wide coverage 5G integrated networks containing coverage indicator, multi-service QoS indicator and cost indicator is constructed to optimize the location deployment scheme of integrated communication terminals. Based on this, an improved artificial fish swarm-based multi-link integrated communication terminal location deployment optimization algorithm is proposed to solve the high-dimensional decision space optimization problem of integrated communication terminal deployment. Simulation results show that the algorithm proposed in this thesis can rapidly find the optimal integrated communication terminal deployment location with limited cost budget, significantly improve the network coverage and service QoS indicator.
{"title":"Multi-link Integrated Communication Terminals Deploying Method for Wide Coverage of 5G Integrated Power Communications Network","authors":"Hong Zhu, Wendi Wang, Chengling Jiang, Wenjie Ma, Zhiyi Li, Sujie Shao","doi":"10.1109/BMSB58369.2023.10211273","DOIUrl":"https://doi.org/10.1109/BMSB58369.2023.10211273","url":null,"abstract":"With the vigorous promotion of informatization, intelligence and ubiquity of power grid services, the flexible extension and extensive coverage of the end of power communication networks through the introduction of integrated communication terminals has become an important development direction. The deployment of integrated communication terminals affects the access range and service QoS of power service terminals. To address this issue, this paper investigates the deployment of multi-link integrated communication terminals in 5G integrated power communications network and proposes a multi-link integrated communication terminal deploying method to support the wide coverage of power 5G. Firstly, a multi-link optimization model for wide coverage 5G integrated networks containing coverage indicator, multi-service QoS indicator and cost indicator is constructed to optimize the location deployment scheme of integrated communication terminals. Based on this, an improved artificial fish swarm-based multi-link integrated communication terminal location deployment optimization algorithm is proposed to solve the high-dimensional decision space optimization problem of integrated communication terminal deployment. Simulation results show that the algorithm proposed in this thesis can rapidly find the optimal integrated communication terminal deployment location with limited cost budget, significantly improve the network coverage and service QoS indicator.","PeriodicalId":13080,"journal":{"name":"IEEE international Symposium on Broadband Multimedia Systems and Broadcasting","volume":"36 3 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78059687","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}
Pub Date : 2023-06-14DOI: 10.1109/BMSB58369.2023.10211205
Qing Feng, Jiang Chang, Zhongle Wu
The development of information technology promotes the deep integration of media, and mainstream media voices and copyright protection are facing challenges. This paper analyzes key technologies of media convergence communication management, as well as the practical thinking of the combination of blockchain, artificial intelligence, big data, and other technologies, and puts forward an audio-visual communication service platform solution based on blockchain technology, providing a reference for Broadcast TV media to carry out the application of integrated communication management.
{"title":"Research on the Application of Blockchain in Media Communication Copyright Management","authors":"Qing Feng, Jiang Chang, Zhongle Wu","doi":"10.1109/BMSB58369.2023.10211205","DOIUrl":"https://doi.org/10.1109/BMSB58369.2023.10211205","url":null,"abstract":"The development of information technology promotes the deep integration of media, and mainstream media voices and copyright protection are facing challenges. This paper analyzes key technologies of media convergence communication management, as well as the practical thinking of the combination of blockchain, artificial intelligence, big data, and other technologies, and puts forward an audio-visual communication service platform solution based on blockchain technology, providing a reference for Broadcast TV media to carry out the application of integrated communication management.","PeriodicalId":13080,"journal":{"name":"IEEE international Symposium on Broadband Multimedia Systems and Broadcasting","volume":"4 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75524157","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}
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