China Communications最新文献_第8页

Blind image quality assessment by pairwise ranking image series 图像序列两两排序的盲图像质量评价

IF 4.1 3区计算机科学

China Communications Pub Date : 2023-09-01 DOI: 10.23919/JCC.2023.00.102

Li Xu, Xiuhua Jiang

{"title":"Blind image quality assessment by pairwise ranking image series","authors":"Li Xu, Xiuhua Jiang","doi":"10.23919/JCC.2023.00.102","DOIUrl":"https://doi.org/10.23919/JCC.2023.00.102","url":null,"abstract":"Image quality assessment (IQA) is constantly innovating, but there are still three types of stickers that have not been resolved: the \"content sticker\" — limitation of training set, the \"annotation sticker\" — subjective instability in opinion scores and the \"distortion sticker\" — disordered distortion settings. In this paper, a No-Reference Image Quality Assessment (NR IQA) approach is proposed to deal with the problems. For \"content sticker\", we introduce the idea of pairwise comparison and generate a largescale ranking set to pre-train the network; For \"annotation sticker\", the absolute noise-containing subjective scores are transformed into ranking comparison results, and we design an indirect unsupervised regression based on Eigenvalue Decomposition (EVD); For \"distortion sticker\", we propose a perception-based distortion classification method, which makes the distortion types clear and refined. Experiments have proved that our NR IQA approach Experiments show that the algorithm performs well and has good generalization ability. Furthermore, the proposed perception based distortion classification method would be able to provide insights on how the visual related studies may be developed and to broaden our understanding of human visual system.","PeriodicalId":9814,"journal":{"name":"China Communications","volume":"20 1","pages":"127-143"},"PeriodicalIF":4.1,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41598990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Microcontroller design based on dynamic heterogeneous redundancy architecture 基于动态异构冗余架构的单片机设计

3区计算机科学

China Communications Pub Date : 2023-09-01 DOI: 10.23919/jcc.fa.2022-0374.202309

Ling Ouyang, Ke Song, Wenjian Zhang, Shuai Wei

引用次数: 0

Cognitive J²SAC: Joint jamming, sensing, and communication under antagonistic environment 认知J2SAC:对抗环境下的联合干扰、感知和通信

3区计算机科学

China Communications Pub Date : 2023-09-01 DOI: 10.23919/jcc.fa.2023-0142.202309

Jiangchun Gu, Guoru Ding, Yizhen Yin, Haichao Wang, Yitao Xu, Yehui Song

{"title":"Cognitive J2SAC: Joint jamming, sensing, and communication under antagonistic environment","authors":"Jiangchun Gu, Guoru Ding, Yizhen Yin, Haichao Wang, Yitao Xu, Yehui Song","doi":"10.23919/jcc.fa.2023-0142.202309","DOIUrl":"https://doi.org/10.23919/jcc.fa.2023-0142.202309","url":null,"abstract":"Integrated sensing and communication (ISAC) is regarded as a recent advanced technology, which is expected to realize the dual functions of sensing and communication simultaneously in one system. Nevertheless, it still faces the challenges of the information security and transmission robustness caused by the openness of wireless channel, especially under antagonistic environment. Hence, this article develops a generalized framework, named cognitive joint jamming, sensing and communication (cognitive J 2 SAC), to empower the current sensing/communication/jamming system with a \"brain\" for realizing precise sensing, reliable communication and effective jamming under antagonistic environment. Three kinds of gains can be captured by cognitive J 2 SAC, including integrated gain, cooperative gain and cognitive gain. Moreover, we highlight the enabling mechanism among jamming, sensing, and communication, as well as illustrating several typical use cases of cognitive J 2 SAC. Furthermore, several key enabled technologies are analyzed and a typical sensing enhance integrated communication and jamming case study is discussed to verify the effectiveness of the proposed method. Last but not the least, the future directions are listed before concluding this article.","PeriodicalId":9814,"journal":{"name":"China Communications","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135299508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A true-time-delay array architecture for wideband multi-beam tracking 一种用于宽带多波束跟踪的真时延阵列结构

IF 4.1 3区计算机科学

China Communications Pub Date : 2023-08-01 DOI: 10.23919/JCC.fa.2022-0857.202308

Xiaowei Liu, Guangliang Ren

引用次数: 0

Smart contract based DDoS attack traceability audit mechanism in intelligent IoT 智能物联网中基于智能合约的DDoS攻击溯源审计机制

IF 4.1 3区计算机科学

China Communications Pub Date : 2023-08-01 DOI: 10.23919/JCC.fa.2023-0020.202308

Zhuohao Wang, Weiting Zhang, Runhu Wang, Y. Liu, Chenyang Xu, Chengxiao Yu

{"title":"Smart contract based DDoS attack traceability audit mechanism in intelligent IoT","authors":"Zhuohao Wang, Weiting Zhang, Runhu Wang, Y. Liu, Chenyang Xu, Chengxiao Yu","doi":"10.23919/JCC.fa.2023-0020.202308","DOIUrl":"https://doi.org/10.23919/JCC.fa.2023-0020.202308","url":null,"abstract":"In this paper, we focus on providing data provenance auditing schemes for distributed denial of service (DDoS) defense in intelligent internet of things (IoT). To achieve effective DDoS defense, we introduce a two-layer collaborative blockchain framework to support data auditing. Specifically, using data scattered among intelligent IoT devices, switch gateways self-assemble a layer of blockchain in the local autonomous system (AS), and the main chain with controller participation can be aggregated by its associated layer of blocks once a cycle, to obtain a global security model. To optimize the processing delay of the security model, we propose a process of data pre-validation with the goal of ensuring data consistency while satisfying overhead requirements. Since the flood of identity spoofing packets, it is difficult to solve the identity consistency of data with traditional detection methods, and accountability cannot be pursued afterwards. Thus, we proposed a Packet Traceback Telemetry (PTT) scheme, based on in-band telemetry, to solve the problem. Specifically, the PTT scheme is executed on the distributed switch side, the controller to schedule and select routing policies. Moreover, a tracing probabilistic optimization is embedded into the PTT scheme to accelerate path reconstruction and save device resources. Simulation results show that the PTT scheme can reconstruct address spoofing packet forward path, reduce the resource consumption compared with existing tracing scheme. Data tracing audit method has fine-grained detection and feasible performance.","PeriodicalId":9814,"journal":{"name":"China Communications","volume":"20 1","pages":"54-64"},"PeriodicalIF":4.1,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46868822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Group-based successive interference cancellation for multi-antenna NOMA system with error propagation 具有误差传播的多天线NOMA系统基于群的连续干扰消除

IF 4.1 3区计算机科学

China Communications Pub Date : 2023-08-01 DOI: 10.23919/JCC.fa.2022-0611.202308

Cheng Hu, Hong Wang, Changxiang Li, Rong-fang Song

{"title":"Group-based successive interference cancellation for multi-antenna NOMA system with error propagation","authors":"Cheng Hu, Hong Wang, Changxiang Li, Rong-fang Song","doi":"10.23919/JCC.fa.2022-0611.202308","DOIUrl":"https://doi.org/10.23919/JCC.fa.2022-0611.202308","url":null,"abstract":"Non-orthogonal multiple access (NOMA) is viewed as a key technique to improve the spectrum efficiency and solve the issue of massive connectivity. However, for power domain NOMA, the required overall transmit power should be increased rapidly with the increasing number of users in order to ensure that the signal-to-interference-plus-noise ratio reaches a predefined threshold. In addition, since the successive interference cancellation (SIC) is adopted, the error propagation would become more serious as the order of SIC increases. Aiming at minimizing the total transmit power and satisfying each user's service requirement, this paper proposes a novel framework with group-based SIC for the deep integration between power domain NOMA and multi-antenna technology. Based on the proposed framework, a joint optimization of power control and equalizer design is investigated to minimize transmit power consumption for uplink multi-antenna NOMA system with error propagations. Based on the relationship between the equalizer and the transmit power coefficients, the original problem is transformed to a transmit power optimization problem, which is further addressed by a parallel iteration algorithm. It is shown by simulations that, in terms of the total power consumption, the proposed scheme outperforms the conventional OMA and the existing cluster-based NOMA schemes.","PeriodicalId":9814,"journal":{"name":"China Communications","volume":"20 1","pages":"276-287"},"PeriodicalIF":4.1,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46384455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A survey on channel measurements and models for underground MIMO communication systems 地下MIMO通信系统信道测量与模型研究综述

IF 4.1 3区计算机科学

China Communications Pub Date : 2023-08-01 DOI: 10.23919/JCC.fa.2022-0240.202308

Asad Saleem, Yejun He, G. Zheng, Zhining Chen

引用次数: 0

Arbitrary decode-forward relaying with re-encoded bits selection strategy for polar codes 具有极性码重编码位选择策略的任意译码转发中继

IF 4.1 3区计算机科学

China Communications Pub Date : 2023-08-01 DOI: 10.23919/JCC.fa.2021-0179.202308

Di Guan, K. Niu, Chao Dong

引用次数: 0

Distributed edge cooperation and data collection for digital twins of wide-areas 面向广域数字孪生的分布式边缘协作与数据采集

IF 4.1 3区计算机科学

China Communications Pub Date : 2023-08-01 DOI: 10.23919/JCC.fa.2023-0202.202308

Mancong Kang, Xi Li, Hong Ji, Heli Zhang

{"title":"Distributed edge cooperation and data collection for digital twins of wide-areas","authors":"Mancong Kang, Xi Li, Hong Ji, Heli Zhang","doi":"10.23919/JCC.fa.2023-0202.202308","DOIUrl":"https://doi.org/10.23919/JCC.fa.2023-0202.202308","url":null,"abstract":"Digital twins for wide-areas (DT-WA) can model and predict the physical world with high fidelity by incorporating an artificial intelligence (AI) model. However, the AI model requires an energy-consuming updating process to keep pace with the dynamic environment, where studies are still in infancy. To reduce the updating energy, this paper proposes a distributed edge cooperation and data collection scheme. The AI model is partitioned into multiple sub-models deployed on different edge servers (ESs) co-located with access points across wide-area, to update distributively using local sensor data. To reduce the updating energy, ESs can choose to become either updating helpers or recipients of their neighboring ESs, based on sensor quantities and basic updating convergencies. Helpers would share their updated sub-model parameters with neighboring recipients, so as to reduce the latter updating workload. To minimize system energy under updating convergency and latency constraints, we further propose an algorithm to let ESs distributively optimize their cooperation identities, collect sensor data, and allocate wireless and computing resources. It comprises several constraint-release approaches, where two child optimization problems are solved, and designs a large-scale multi-agent deep reinforcement learning algorithm. Simulation shows that the proposed scheme can efficiently reduce updating energy compared with the baselines.","PeriodicalId":9814,"journal":{"name":"China Communications","volume":"27 3","pages":"177-197"},"PeriodicalIF":4.1,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41244059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Power allocation and antenna selection for heterogeneous cellular networks 异构蜂窝网络的功率分配和天线选择

IF 4.1 3区计算机科学

China Communications Pub Date : 2023-08-01 DOI: 10.23919/JCC.fa.2021-0563.202308

Lingyi Kong, Yulong Zou, Yuhan Jiang, Jia Zhu

{"title":"Power allocation and antenna selection for heterogeneous cellular networks","authors":"Lingyi Kong, Yulong Zou, Yuhan Jiang, Jia Zhu","doi":"10.23919/JCC.fa.2021-0563.202308","DOIUrl":"https://doi.org/10.23919/JCC.fa.2021-0563.202308","url":null,"abstract":"In this paper, we investigate the system performance of a heterogeneous cellular network consisting of a macro cell and a small cell, where each cell has one user and one base station with multiple antennas. The macro base station (MBS) and the small base station (SBS) transmit their confidential messages to the macro user (MU) and the small user (SU) over their shared spectrum respectively. To enhance the system sum rate (SSR) of MBS-MU and SBS-SU transmission, we propose joint antenna selection combined with optimal power allocation (JAS-OPA) scheme and independent antenna selection combined with optimal power allocation (IAS-OPA) scheme. The JAS-OPA scheme requires to know the channel state information (CSI) of transmission channels and interference channels, while the IAS-OPA scheme only needs to know the CSI of transmission channels. In addition, we carry out the analysis for conventional round-robin antenna selection combined with optimal power allocation (RR-OPA) as a benchmark scheme. We formulate the SSR maximization problem through the power allocation between MBS and SBS and propose iterative OPA algorithms for JAS-OPA, IAS-OPA and RR-OPA schemes, respectively. The results show that the OPA schemes outperform the equal power allocation in terms of SSR. Moreover, we provide the closed-form expression of the system outage probability (SOP) for IAS scheme and RR scheme, it shows the SOP performance can be significantly improved by our proposed IAS scheme compared with RR scheme.","PeriodicalId":9814,"journal":{"name":"China Communications","volume":"571 1","pages":"220-233"},"PeriodicalIF":4.1,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68734886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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