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IEEE Transactions on Green Communications and networking 2025年

作者： Zhang, Zheng Wu, Qiong Fan, Pingyi Cheng, Nan Chen, Wen Letaief, Khaled B. Jiangnan University School of Internet of Things Engineering Wuxi214122 China Tsinghua University Beijing National Research Center for Information Science and Technology Department of Electronic Engineering State Key laboratory of Space Network and Communications Tsinghua University Beijing100084 China Xidian University State Key Lab. of ISN School of Telecom-munications Engineering Xi'an710071 China Shanghai Jiao Tong University Department of Electronic Engineering Shanghai200240 China Department of Electrical and Computer Engineer-ing Hong Kong

To address communication latency issues, the Third Generation Partnership Project (3GPP) has defined Cellular-Vehicle to Everything (C-V2X) technology, which includes Vehicle-to-Vehicle (V2V) communication for direct vehicle-to-vehicle communication. However, this method requires vehicles to autonomously select communication resources based on the Semi-Persistent Scheduling (SPS) protocol, which may lead to collisions due to different vehicles sharing the same communication resources, thereby affecting communication effectiveness. Non-Orthogonal Multiple Access (NOMA) is considered a potential solution for handling large-scale vehicle communication, as it can enhance the Signal-to-Interference-plus-Noise Ratio (SINR) by employing Successive Interference Cancellation (SIC), thereby reducing the negative impact of communication collisions. When evaluating vehicle communication performance, traditional metrics such as reliability and transmission delay present certain contradictions. Introducing the new metric Age of Information (AoI) provides a more comprehensive evaluation of communication system. Additionally, to ensure service quality, user terminals need to possess high computational capabilities, which may lead to increased energy consumption, necessitating a trade-off between communication energy consumption and effectiveness. Given the complexity and dynamics of communication systems, Deep Reinforcement Learning (DRL) serves as an intelligent learning method capable of learning optimal strategies in dynamic environments. Therefore, this paper analyzes the effects of multi-priority queues and NOMA on AoI in the C-V2X vehicular communication system and proposes an energy consumption and AoI optimization method based on DRL. Finally, through comparative simulations with baseline methods, the proposed approach demonstrates its advances in terms of energy consumption and AoI. © 2017 IEEE.

关键词： Deep reinforcement learning

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PPO-Based Vehicle Control for Ramp Merging Scheme Assisted by Enhanced C-V2X

arXiv

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arXiv 2025年

作者： Wu, Qiong Ji, Maoxin Fan, Pingyi Wang, Kezhi Cheng, Nan Chen, Wen Letaief, Khaled B. The School of Internet of Things Engineering Jiangnan University Wuxi214122 China The Department of Electronic Engineering State Key laboratory of Space Network and Communications Beijing National Research Center for Information Science and Technology Tsinghua University Beijing100084 China The Department of Computer Science Brunel University Middlesex LondonUB8 3PH United Kingdom The State Key Lab. of ISN School of Telecommunications Engineering Xidian University Xi’an710071 China The Department of Electronic Engineering Shanghai Jiao Tong University Shanghai200240 China Hong Kong

On-ramp merging presents a critical challenge in autonomous driving, as vehicles from merging lanes need to dynamically adjust their positions and speeds while monitoring traffic on the main road to prevent collisions. To address this challenge, we propose a novel merging control scheme based on reinforcement learning, which integrates lateral control mechanisms. This approach ensures the smooth integration of vehicles from the merging lane onto the main road, optimizing both fuel efficiency and passenger comfort. Furthermore, we recognize the impact of vehicle-to-vehicle (V2V) communication on control strategies and introduce an enhanced protocol leveraging Cellular Vehicle-to-Everything (C-V2X) Mode 4. This protocol aims to reduce the Age of Information (AoI) and improve communication reliability. In our simulations, we employ two AoI-based metrics to rigorously assess the protocol's effectiveness in autonomous driving scenarios. By combining the NS3 network simulator with Python, we simulate V2V communication and vehicle control simultaneously. The results demonstrate that the enhanced C-V2X Mode 4 outperforms the standard version, while the proposed control scheme ensures safe and reliable vehicle operation during on-ramp merging. Copyright © 2025, The Authors. All rights reserved.

关键词： Problem oriented languages

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A genetic algorithm for multiple mobile data collectors' path planning in WSNs

A genetic algorithm for multiple mobile data collectors' pat...

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2012 International Conference on Information Technology and Software Engineering, ITSE 2012

作者： Shen, Zhuowei Cao, Min Key Lab. of Computer Network and Information Integration School of Computer and Engineering Southeast University Nanjing China

ISBN: (纸本)9783642345210

In mobile data collector (MDC)-based wireless sensor networks, we need to design paths for MDCs for better data collection. In this paper, we use predictable mobility pattern and apply a heuristic algorithm to design paths of MDCs. The algorithm aims to make the time cost by MDCs covering the whole network as short as possible. The algorithm is taken by two steps. Firstly, choose the stop points, and then, construct the paths. Both steps are computed using genetic algorithm (GA). In choosing stop points algorithm, improved stochastic tournament selection is adopted to deal with restraints and special fitness is used to enhance differentiation of solutions. An asexual reproduction based GA with 2-opt optimization mechanism is used to construct MDCs' paths. As experiments show, the algorithm proposed in this paper performs better than greedy algorithm. © 2013 Springer-Verlag.

关键词： Wireless sensor networks

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The CMVAI-file: An efficient approximation-based high-dimensional index structure

The CMVAI-file: An efficient approximation-based high-dimens...

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International Conference on Multimedia Information networking and Security

作者： Ye, Lihong Hua, Yuan Communication and Computer Network Key Lab. of Guangdong South China University of Technology Guangzhou China

ISBN: (纸本)9780769542584

Similarity-Search based index structure is an important topic in many application areas, such as content-based multimedia information retrieval, data mining, cluster analysis, etc. In order to improve query performance in highdimensional vector spaces, lots of index structures have been proposed. However, many well-known index structures encounter "dimensional curse" while the dimension of feature vector increase. In order to solve such problem, researchers analyzed the nearest-neighbor search problem in highdimensional vector spaces deeply and proposed some approximation-based index structures. The VA-File which is the first implement approximation-based index structures has done well in solving "dimensional curse" problem. However, approximate vectors in VA-File are just simply placed in flat structure files without other optimization methods. In this paper, we propose the Collecting and Multi-Vector-Approximation Indexed-File (CMVAI-File). The CMVAI-File is still an approximate-based index structure and uses a filterbased approach. Unlike the VA-File, the CMVAI-File uses multi-level approximate, collect the same vectorapproximations and a segmental structure to improve query performance. Experimental results show that CMVAI-File has a promising improvement in performance. © 2010 IEEE.

关键词： Vectors

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A link analysis for passive UHF RFID system in LOS indoor environment

A link analysis for passive UHF RFID system in LOS indoor en...

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2008 International Conference on Wireless Communications, networking and Mobile Computing, WiCOM 2008

作者： Hong, Gang Wang Chang, Xing Petitioner Chang, Hua Zhu Ministry of Education Key Lab. Computer Network and Information Security Xidian University Xi'an China

ISBN: (纸本)9781424421084

A link analysis model for passive UHF RFID system in LOS indoor environment is developed and demonstrated. Using this model, the power received by tag and the read performance are investigated. The multipath fading and RMS delay spread for UHF RFID system are analyzed by a 5-ray model with different polarization, e.g., horizontal polarization, vertical polarization, and circular polarization. A practical test is developed on an indoor balcony of an office building. In addition, the electric field environment is simulated using the tool of Ansoft HFSS for the analysis of multipath degradation. The results of theoretical analysis, simulation and test are almost conformable, and the small scale fading and the field nulls are observed. Multipath degradation affects the UHF RFID system so much on read performance, and it is still a key limitation on system performance. More research on anti-multipath interference should be developed, e.g., high gain antenna, high sensitivity tag and reader receiver, and more effective protocols, and so on. © 2008 IEEE.

关键词： Time delay

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A query-aware location privacy protection approach in LBS for road networks

A query-aware location privacy protection approach in LBS fo...

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2013 IEEE International Conference on Green Computing and Communications and IEEE Internet of Things and IEEE Cyber, Physical and Social Computing, GreenCom-iThings-CPSCom 2013

作者： Li, Wei Jiang, Jiangtao Li, Yunchun Li, GuoJun School of Computer Science and Technology Key Lab. of Beijing Network Technology Beihang University Beijing China

ISBN: (纸本)9780769550466

Mobile users often request services from Location Based Service (LBS) provider when traveling along roads. In order to acquire better service, they have to provide their exact location information, which may result in leaking their location privacy. Current location privacy preservation methods for road networks usually based on star expansion model, which may make anonymity segment set overlapped each other. To address this issue, a query-aware location anonymity approach is proposed, and highlighted itself in three aspects: (1) the model meets the location K-anonymity and road segment l-anonymity, and the reciprocal anonymity segment set is shared among all mobile users located in the segment set. (2) The anonymity segment set is compacted which can improve the query efficiency in LBS. (3) Different optimization levels can be provided considering the tradeoff between privacy preservation and query processing performance. At last, the experiment results verify the effectiveness and security of the anonymity segment sets. © 2013 IEEE.

关键词： Location based services

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Query-aware anonymization in location-based service

Query-aware anonymization in location-based service

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2011 7th International Conference on Computational Intelligence and Security, CIS 2011

作者： Li, Wei Li, Guangye Liu, Chunlei Key Lab. of Beijing Network Technology School of Computer Science and Technology Beihang University Beijing China

ISBN: (纸本)9780769545844

Query privacy protection is an important part of the privacy protection in LBS. Currently, query privacy protection mainly consider the two typical attack models: query sampling attack and query homogeneity attack. The two attack model can be prevented by ensuring that cloaking regions satisfy k-sharing property or l-diversity property, however, when the overall POI (point of interests) distribution is non-uniform, attackers may still infer a specific user's query content with a high probability, which we refer to as skew attack. To address this issue, we modify the t-closeness model which is widely used in the data privacy protection, then we propose the QueryAwareCloak algorithm which is query-aware when generating cloaking regions. Finally, we verify the validation and effectiveness of the model and algorithm by experiments. © 2011 IEEE.

关键词： Data privacy

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Building a resource overlay for distributed monitoring

Building a resource overlay for distributed monitoring

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1st International Conference on Information Science and Engineering, ICISE2009

作者： Li, Wei Fan, Ruiting Zhang, Long School of Computer Science and Technology Key Lab. of Beijing Network Technology Beihang University Beijing China

ISBN: (纸本)9780769538877

To address the problems of resource sharing and utilization in the distributed environment, the paper aims to establish a resource overlay for the distributed system monitoring. The resource overlay can construct a logical space, and the type of the nodes in the space can be classified as host node and resource node. The host node and resource node are mapped into the logical space of network by the consistent hash function and the location preserving hash function respectively. An improved DHT algorithm is used to establishing the resource overlay, and supporting the range query for the resource information. Experiments have proved the validation of the method, and the results show that it is an effective method for finding the availab.e resource in less routing hops. ©2009 IEEE.

关键词： Hash functions

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A multi-factor integrated fault diagnosis method for distributed applications

A multi-factor integrated fault diagnosis method for distrib...

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2nd International Conference on Information Science and Engineering, ICISE2010

作者： Li, Wei Li, Guangye Yin, Yin Key Lab. of Beijing Network Technology School of Computer Science and Technology Beihang University Beijing China

ISBN: (纸本)9781424480968

Fault management is a key research part in the field of distributed applications management. Fault Management based on active probing is divided into two phases: fault detection and fault diagnosis, considering probe costs in these two phases, this paper proposes two algorithms: PSFD and PSFL. Finally, MATlab.is used as the experiment platform and BNT toolkit is adopted. Simulations show the effectiveness of the algorithms. © 2010 IEEE.

关键词： Failure analysis

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RETRACTED ARTICLE: A method to device flow hash algorithm based traffic character

RETRACTED ARTICLE: A method to device flow hash algorithm ba...

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2008 11th IEEE International Conference on Communication Technology, ICCT 2008

作者： Cheng, Guang Gong, Jian College of Computer Science and Engineering Southeast University Key Lab. of the Computer Network Technology Jiangsu Province Nanjing 210096 China

ISBN: (纸本)9781424422517

Flow sampling algorithms and data streaming algorithms have widely adopted the hashing algorithms to detect flow information at the high-speed links for the applications of the flow distribution, the number of flow, the heavy-tailed flow, and so on. Hashing algorithms involve transforming a key inside a hash value. But there aren't hash algorithms which are designed for flow measurement. In this paper, we propose a method to design flow hash algorithm based on traffic character. A bit probability distance metric is given to design a flow hash algorithm, and a flow hash algorithm is given using a CERNET trace, and the flow hash algorithm is compared with Bob and CRC hash algorithms by an uniformity test, the number of active flows tests, and a speed test. The experimental result shows that the flow hash algorithm is superior to others hash algorithms. © 2008 IEEE.

关键词： Hash functions

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