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Joint optimization of energy consumption and latency for task offloading in cloud-edge collaboration system

PHYSICAL communication 2025年 70卷

作者： Jiang, Xue Dou, Haie Wang, Lei Xia, Zhijie Nanjing Univ Posts & Telecommun Sch Internet Things Nanjing Peoples R China Nanjing Univ Posts & Telecommun Jiangsu Engn Res Ctr Commun & Network Technol Nanjing Peoples R China Nanjing Univ Posts & Telecommun Key Lab Broadband Wireless Commun & Sensor Network Nanjing Peoples R China

Ina cloud-edge collaboration system, ensuring consistent wireless connectivity that meets the quality of service (QoS) for users with varying requirements is challenging. Therefore, the approach to task offloading for all mobile devices (MDs) should be carefully designed to enhance performance based on different requirements. This paper introduces a novel multi-objective genetic algorithm (MOGA) to address the task offloading problem, considering minimal energy consumption and latency simultaneously. Experimental results demonstrate that the proposed multi-objective genetic algorithm achieves rapid convergence and optimizes delay and energy consumption.

关键词： Cloud-edge collaborative Task offloading Multi-objective genetic algorithm

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Side-channel free quantum digital signature with source monitoring

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Chinese Physics B 2025年第1期34卷 53-58页

作者： Luo-Jia Ma Ming-Shuo Sun Chun-Hui Zhang Hua-Jian Ding Xing-Yu Zhou Jian Li Qin Wang Institute of Quantum Information and Technology Nanjing University of Posts and TelecommunicationsNanjing 210003China Broadband Wireless Communication and Sensor Network Technology Key Laboratory of Ministry of EducationNanjing University of Posts and TelecommunicationsNanjing 210003China

Quantum digital signature(QDS)can guarantee the information-theoretical security of a signature with the fundamental laws of quantum ***,most current QDS protocols do not take source security into account,leading to an overestimation of the signature *** this paper,we propose to utilize Hong–Ou–Mandel interference to characterize the upper bound of the source imperfections,and further to quantify information leakage from potential ***,we combine decoy-state methods and finite-size analysis in analyzing the signature *** results demonstrate the performance and feasibility of our *** current work can improve the practical security of QDS systems,thereby promoting their further networked applications.

关键词： Hong-Ou-Mandel interference side-channel free quantum digital signature

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Security and Reliability Tradeoff of NOMA Based Hybrid Satellite-Terrestrial network With a Friendly Jammer

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IEEE TRANSACTIONS ON VEHICULAR technology 2025年第2期74卷 3439-3444页

作者： Li, Bin Zou, Yulong Wu, Tonghua Zhang, Zaichen Chen, Mingkai Jiang, Yuhan NUPT Key Lab Broadband Wireless Commun & Sensor Network Minist Educ Nanjing 210003 Peoples R China NUPT Jiangsu Engn Res Ctr Commun & Network Technol Nanjing 210003 Peoples R China NUPT Sch Telecommun & Informat Engn Nanjing 210003 Peoples R China Nari Grp Corp Nanjing 211106 Peoples R China Southeast Univ Frontiers Sci Ctr Mobile Informat Commun & Secur Natl Mobile Commun Res Lab Nanjing 210096 Peoples R China

This paper analyzes the security and reliability tradeoff (SRT) performance for a hybrid satellite-terrestrial network (HSTN) using the non-orthogonal multiple access (NOMA) protocol. To improve the SRT performance of the NOMA based HSTN, a friendly jammer assisted transmission (FJT) scheme is proposed and its outage and intercept probability expressions are carried out in closed-form. The transmission secrecy outage probability is given to show the tradeoff between the security and reliability of the FJT scheme. For the purposes of comparison, the none jammer aided transmission (NJT) scheme is also considered in simulations. Numerical results reveal that the FJT scheme significantly enhances the SRT performance of each user and the whole system compared to the NJT scheme. Moreover, the power allocation between users and that between the relay and the friendly jammer can be adjusted to achieve better SRT performance.

关键词： Security and reliability tradeoff (SRT) non-orthogonal multiple access (NOMA) friendly jammer hybrid satellite-terrestrial network Security and reliability tradeoff (SRT) non-orthogonal multiple access (NOMA) friendly jammer hybrid satellite-terrestrial network

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Physical-Layer Security for Friendly Jammers Assisted Satellite–Terrestrial Integrated networks

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IEEE Internet of Things Journal 2025年第11期12卷 17430-17442页

作者： Cao, Weifeng Zou, Yulong Li, Bin Zhu, Jia Nanjing Institute of Technology School of Automation Nanjing211167 China Nanjing University of Posts and Telecommunications School of Telecommunications and Information Engineering Nanjing210003 China Nanjing University of Posts and Telecommunications Key Laboratory of Broadband Wireless Communication and Sensor Network Technology Ministry of Education School of Telecommunications and Information Engineering Nanjing210003 China

This article investigates the physical-layer security (PLS) of a satellite-terrestrial integrated network (STIN) consisting of a satellite (S), a destination (D), and several friendly jammers in the presence of an eavesdropper (E). For improving PLS of the STIN, we propose three friendly jammer assisted communication schemes to help S securely send confidential information to D, i.e., the random jammer selection assisted communication (RJSC) scheme, the optimal jammer selection assisted communication (OJSC) scheme, and the multiple jammers assisted communication (MJC) scheme. For performance comparison, the nonjammer assisted communication (NJC) scheme is also presented. We analyze secrecy performance of the NJC, RJSC, OJSC, and MJC schemes by carrying out their closed-form secrecy outage probability (SOP) expressions, respectively. Numerical results unveil that the RJSC, OJSC, and MJC schemes exceed the NJC scheme with regard to their SOPs (e.g., as shown in Fig. 2, when the signal-to-noise ratio is 25 dB, SOP of the STIN drops from 70% to 3%), and the OJSC scheme can get the best secrecy performance, showing the secrecy benefits of adopting friendly jammers assisted communication schemes against eavesdropping. Additionally, by increasing the number of friendly jammers, the secrecy performance of the OJSC and MJC schemes can be significantly enhanced, while that of the RJSC scheme remains unchanged. © 2014 IEEE.

关键词： Jamming

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Trust and Trustworthiness in Information and communications Technologies

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IEEE wireless communicationS 2025年第2期32卷 84-92页

作者： Ling, Xintong Le, Yuwei Wang, Jiaheng Huang, Yongming You, Xiaohu Southeast Univ Natl Mobile Commun Res Lab Nanjing Peoples R China Southeast Univ Natl Mobile Commun Res Lab NCRL Nanjing Peoples R China Purple Mt Labs Nanjing Peoples R China Purple Mt Labs Pervas Commun Res Ctr Nanjing Peoples R China Purple Mt Labs Pervas Commun Res Ctr Network Secur Nanjing Peoples R China

Trust serves as the glue and cornerstone of human society and emerges as a critical enabler of information and communications technologies (lCT). Despite its importance, trust remains a debated concept with different viewpoints and limitations from diverse theories. In this study, we define the concept of trust and trustworthiness in a useful and measurable way with a rigorous mathematical basis. While our study does not resolve all disagreements about trust, we seek the fewest common elements necessary to define generic trust for achieving the minimum consensus across the broadest contexts. Based on our trust definition, we exploit the dynamic trust inference and analyze the trust transfer across different contexts, as well as the trust propagation through multiple entities. To demonstrate the applicability of our trust notion, we present two illustrative case studies: evaluating the trustworthiness of a mobile network operator communicating over a fading channel and assessing the trustworthiness of a miner in safe-guarding a blockchain from being subverted.

关键词： Information and communication technology 6G mobile communication Trusted computing Fading channels Blockchains Security Random variables Probabilistic logic Bayes methods Data mining

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Improved reference-frame-independent quantum key distribution with intensity fluctuations

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Chinese Physics B 2025年第2期34卷 48-52页

作者： Zi-Qi Chen Hao-Bing Sun Ming-Shuo Sun Qin Wang Institute of Quantum Information and Technology Nanjing University of Posts and TelecommunicationsNanjing 210003China Broadband Wireless Communication and Sensor Network Technology Key Laboratory of Ministry of EducationNanjing University of Posts and TelecommunicationsNanjing 210003China

Reference-frame-independent quantum key distribution(RFI-QKD) can avoid real-time calibration operation of reference frames and improve the efficiency of the communication process. However, due to imperfections of optical devices,there will inevitably exist intensity fluctuations in the source side of the QKD system, which will affect the final secure key rate. To reduce the influence of intensity fluctuations, an improved 3-intensity RFI-QKD scheme is proposed in this *** considering statistical fluctuations and implementing global parameter optimization, we conduct corresponding simulation analysis. The results show that our present work can present both higher key rate and a farther transmission distance than the standard method.

关键词： quantum key distribution intensity fluctuations decoy-state method

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When Digital Twin Meets 6G: Concepts, Obstacles, and Research Prospects

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IEEE communicationS MAGAZINE 2025年第3期63卷 16-22页

作者： Liu, Wenshuai Fu, Yaru Shi, Zheng Wang, Hong Hong Kong Metropolitan Univ Sch Sci & Technol Hong Kong Peoples R China Jinan Univ Sch Intelligent Syst Sci & Engn Zhuhai Peoples R China Nanjing Univ Posts & Telecommun Sch Commun & Informat Engn Nanjing Jiangsu Peoples R China

The convergence of digital twin technology and the emerging 6G network presents both challenges and numerous research opportunities. This article explores the potential synergies between digital twin and 6G, highlighting the key challenges and proposing fundamental principles for their integration. We discuss the unique requirements and capabilities of digital twin in the context of 6G networks, such as sustainable deployment, realtime synchronization, seamless migration, predictive analytic, and closed-loop control. Furthermore, we identify research opportunities for leveraging digital twin and artificial intelligence to enhance various aspects of 6G, including network optimization, resource allocation, security, and intelligent service provisioning. This article aims to stimulate further research and innovation at the intersection of digital twin and 6G, paving the way for transformative applications and services in the future.

关键词： Digital twins 6G mobile communication Real-time systems Synchronization Artificial intelligence Computer architecture Physical layer Decision making Computational modeling Terahertz communications

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Cross-Medium Transmission Method Based on 8B/10B Special Position Coding

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IEEE ACCESS 2025年 13卷 40943-40949页

作者： Hu, Miaoyi Tan, Qi Zhao, Zhengyi Zhong, Shuai Xu, Hang Yang, Yiguang Yao, Jianquan Tianjin Univ Sch Precis Instruments & Optoelect Engn Key Lab Optoelect Informat Technol Minist Educ Tianjin 300072 Peoples R China Hohai Univ Key Lab Maritime Intelligent Cyberspace Technol Minist Educ Nanjing 210000 Peoples R China Sichuan Normal Univ Key Lab Wireless Sensor Network Univ Sichuan Prov Chengdu 610068 Peoples R China Hubei Univ Technol Sch Mech Engn Hubei Key Lab Modern Mfg Qualt Engn Wuhan 430068 Hubei Peoples R China Laoshan Lab Qingdao 266237 Peoples R China

To address limited transmission rates resulting from the laser's low repetition frequency in cross-medium communication, this study proposed a specialized position coding cross-medium transmission method based on 8B/10B to enhance the transmission efficiency. Strategies such as odd-even alternating coding, position coding, and setting empty codes were designed to address the impact of pulse position modulation on transmission rates caused by the "back-to-back" phenomenon. This method ensures that when a pulse occurs in the last four positions of the preceding transmission cycle, it will not occur in the first four positions of the subsequent cycle. A corresponding transmission system was constructed to validate the specialized position coding cross-medium transmission method based on 8B/10B. A laser with a repetition frequency of 60 Hz was used to conduct experiments in a water pool and successfully achieved cross-medium communication at a transmission rate of 181.8 bps.

关键词： Encoding Acoustics Lasers Codes Frequency modulation Hydrophones wireless sensor networks Laser theory Optical pulses Nonlinear optics 8B/10B cross-medium communication laser-induced sound pulse position modulation

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CRoss-MODAL communications For Holographic Video Streaming

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IEEE wireless communicationS 2025年第2期32卷 96-102页

作者： Gao, Yun Wang, Tong Zhou, Liang Zhuang, Weihua Nanjing Univ Posts & Telecommun Nanjing Peoples R China Nanjing Univ Posts & Telecommun Elect Informat Nanjing Peoples R China Univ Waterloo Dept Elect & Comp Engn Waterloo ON Canada

Holographic video, coupled with spatial audio and haptic feedback, is gradually emerging as an enabling medium to deliver interactive and immersive experiences. However, streaming holographic video over wireless networks remains a significant challenge due to high bandwidth demand, resource competition among different modalities, and the dynamic nature of network conditions. To tackle these challenges, we introduce the cross-modal communications paradigm in this work, which exploits potential correlations among video, audio, and haptic modalities to enhance holographic video streaming from both encoding and transmission perspectives. Specifically, we first propose a cross-modal visual saliency prediction method for holographic video compression, leveraging spatiotemporal information provided by spatial audio and haptic feedback to improve prediction accuracy. Then, by exploring semantic correlations between video and haptic modalities, we establish a perceptionIossless haptic coding architecture for extreme haptic compression to alleviate resource competition with holographic video streams. Finally, based on transmission priority settings of video tiles guided by audio and haptic streams, we develop an efficient holographic video rate adaption scheme under time-varying network conditions to consistently ensure immersive experiences. Numerical results validate the benefits of cross-modal communications for holographic video streaming.

关键词： Visualization Correlation wireless networks Spatial audio Streaming media Video compression Encoding Haptic interfaces Spatiotemporal phenomena Streams

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Analysis of Channel Uncertainty in Trusted wireless Services via Repeated Interactions

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IEEE Journal on Selected Areas in communications 2025年第6期43卷 2248-2265页

作者： Chen, Bingwen Ling, Xintong Cao, Weihang Wang, Jiaheng Ding, Zhi Southeast University National Mobile Communications Research Laboratory Nanjing211189 China Purple Mountain Laboratories Nanjing210023 China University of Maryland Department of Electrical and Computer Engineering College ParkMD20742 United States University of California at Davis Department of Electrical and Computer Engineering DavisCA95616 United States

The coexistence of heterogeneous sub-networks in 6G poses new security and trust concerns and thus calls for a perimeterless-security model. Blockchain radio access network (B-RAN) provides a trust-building approach via repeated interactions rather than relying on pre-established trust or central authentication. Such a trust-building process naturally supports dynamic trusted services across various service providers (SP) without the need for perimeter-based authentications;however, it remains vulnerable to environmental and system unreliability such as wireless channel uncertainty. In this study, we investigate channel unreliability in the trust-building framework based on repeated interactions for secure wireless services. We derive specific requirements for achieving cooperation between SPs and clients via a repeated game model and illustrate the implications of channel unreliability on sustaining trusted wireless services. We consider the framework design and optimization to guarantee SP-client cooperation, given the worst channel condition and/or the least cooperation willingness. Furthermore, we explore the maximum cooperation area to enhance service resilience and reveal the trade-off relationship between transmission efficiency, security integrity, and cooperative margin. Finally, we present simulations to demonstrate the system performance over fading channels and verify our results. © 1983-2012 IEEE.

关键词： Fading channels

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