2022 14th International Conference on Wireless Communications and Signal Processing (WCSP)最新文献_第9页

Design and Optimization on Covert Communication-Oriented Short Packet D2D 面向隐蔽通信的短包D2D设计与优化

2022 14th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2022-11-01 DOI: 10.1109/WCSP55476.2022.10039224

Xiaolong Zhang, Jie Liu, Liyu Zhi

引用次数: 0

Coverage Analysis of Cell-Edge Users in Reconfigurable Intelligent Surface-Assisted Cellular Networks 可重构智能表面辅助蜂窝网络中蜂窝边缘用户的覆盖分析

2022 14th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2022-11-01 DOI: 10.1109/WCSP55476.2022.10039217

Hanwen Chen, Howard H. Yang, Qin Tao, C. Zhong

引用次数: 0

Federated Spatio-Temporal Traffic Flow Prediction Based on Graph Convolutional Network 基于图卷积网络的联邦时空交通流预测

2022 14th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2022-11-01 DOI: 10.1109/WCSP55476.2022.10039323

Hanqiu Wang, Rongqing Zhang, Xiang Cheng, Liuqing Yang

{"title":"Federated Spatio-Temporal Traffic Flow Prediction Based on Graph Convolutional Network","authors":"Hanqiu Wang, Rongqing Zhang, Xiang Cheng, Liuqing Yang","doi":"10.1109/WCSP55476.2022.10039323","DOIUrl":"https://doi.org/10.1109/WCSP55476.2022.10039323","url":null,"abstract":"In recent years, traffic flow prediction has attracted increasing interest from both academia and industry, and existing data-driven learning models for traffic flow prediction have achieved excellent success. However, this requires a large number of datasets for efficient model training, while it is difficult to acquire all the data from one agent, and thus data collaboration among different agents becomes an attracting trend. Moreover, with the increase in the number of agents, how to perform accurate multi-agent traffic forecasting while protecting privacy is an important issue. To address this challenge, we introduce a privacy-preserving federated learning framework. In this paper, we propose a novel Dynamic Spatio-Temporal traffic flow prediction model based on graph convolutional network (DST-GCN), which incorporates both dynamic spatial and temporal dependence of intersection traffic. In addition, we provide an improved federated learning framework with opportunistic client selection (FLoS). In the proposed FLoS protocol, we employ a FedAVG algorithm for secure parameter aggregation and design an optimal client selection algorithm to reduce the communication overhead during the transfer of model updates. Experiments based on real-world datasets demonstrate that our proposed DST-GCN traffic prediction model outperforms state-of-the-art baseline models. And our proposed FLoS can achieve superior results while reducing communication consumption.","PeriodicalId":199421,"journal":{"name":"2022 14th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124799202","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}

引用次数: 0

Hybrid Attention Fusion Segmentation Network for Diffuse Large B-cell Lymphoma in PET-CT PET-CT弥漫性大b细胞淋巴瘤的混合注意融合分割网络

2022 14th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2022-11-01 DOI: 10.1109/WCSP55476.2022.10039141

Shun Chen, Ang Li, Jianxin Chen, Xuguang Zhang, Chong Jiang, Jingyan Xu

{"title":"Hybrid Attention Fusion Segmentation Network for Diffuse Large B-cell Lymphoma in PET-CT","authors":"Shun Chen, Ang Li, Jianxin Chen, Xuguang Zhang, Chong Jiang, Jingyan Xu","doi":"10.1109/WCSP55476.2022.10039141","DOIUrl":"https://doi.org/10.1109/WCSP55476.2022.10039141","url":null,"abstract":"Diffuse large B-cell lymphoma (DLBCL) is a type of lymphoma with a high incidence in Asia. Positron emission tomography-computed tomography (PET-CT) is usually used as the evaluation means for DLBCL. Theoretically, the effective combination of the PET and CT can display the shape, size and location of the tumor. In practice, manual lesion segmentation of PET-CT is time-consuming. Hence, in this work, we design a hybrid attention fusion segmentation network (HAFS-Net) for automatic segmentation task. Most works only pay attention to extract information from multi-modal images, but ignore the potential correlations between them, which is ineffective for segmentation. In contrast, our network combines hybrid attention mechanism and PET-CT feature fusion module, which can fully mine correlations between multi-modal information. Specifically, the hybrid attention exploits the tumor region enhancement properties of PET to guide segmentation on CT. And the irrelevant noise regions on CT which interfere with the segmentation will be suppressed. In PET-CT feature fusion module, the supervision information (attention fusion map on PET-CT) is efficiently applied to assist segmentation. Extensive experiments demonstrate that the proposed framework can effectively complete the task of multi-modal medical image segmentation.","PeriodicalId":199421,"journal":{"name":"2022 14th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125188030","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}

引用次数: 0

Active Constraints Inspired Zero-Forcing Precoder Design under Per-Antenna Power Constraints 单天线功率约束下主动约束启发的零强迫预编码器设计

2022 14th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2022-11-01 DOI: 10.1109/WCSP55476.2022.10039390

Xianzhi Hu, Xuchu Dai

{"title":"Active Constraints Inspired Zero-Forcing Precoder Design under Per-Antenna Power Constraints","authors":"Xianzhi Hu, Xuchu Dai","doi":"10.1109/WCSP55476.2022.10039390","DOIUrl":"https://doi.org/10.1109/WCSP55476.2022.10039390","url":null,"abstract":"This paper investigates the problem of linear zero-forcing (ZF) precoder design for sum rate maximization under per-antenna power constraints (PAPCs). A conventional method to tackle this problem is to lift it into a convex determinant maximization program with respect to the transmit covariance matrices, whose complexity, however, increases dramatically as the problem size increases. A suboptimal alternative is to adopt a semi-closed-form pseudo-inverse solution, whose performance, however, becomes dramatically inferior to the optimal design as the number of transmit antennas goes large. A new low-complexity high-performance ZF precoder design under PAPCs is proposed in this paper. Specifically, we first investigate the power usage at each transmit antenna for ZF precoding under PAPCs and identify a lower bound on the number of power constraints that should be active (i.e., satisfied with equality) at the optimal ZF precoder. Then, we devise a low-complexity iterative algorithm to find a ZF precoder satisfying PAPCs, at which the number of active power constraints meets the lower bound requirement for optimality. Simulation results show that the proposed ZF precoder achieves the near-optimal sum rate with significantly reduced computational complexity.","PeriodicalId":199421,"journal":{"name":"2022 14th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130155207","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}

引用次数: 0

Deep Reinforcement Learning Based Resource Allocation for Intelligent Reflecting Surface Assisted Dynamic Spectrum Sharing 基于深度强化学习的智能反射面资源分配辅助动态频谱共享

2022 14th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2022-11-01 DOI: 10.1109/WCSP55476.2022.10039119

Jianxin Guo, Zhe Wang, Jun Li, J. Zhang

{"title":"Deep Reinforcement Learning Based Resource Allocation for Intelligent Reflecting Surface Assisted Dynamic Spectrum Sharing","authors":"Jianxin Guo, Zhe Wang, Jun Li, J. Zhang","doi":"10.1109/WCSP55476.2022.10039119","DOIUrl":"https://doi.org/10.1109/WCSP55476.2022.10039119","url":null,"abstract":"For cognitive radio (CR) systems, it is challenging to achieve high data rate for secondary user (SU) while avoiding the cross-link interference to primary user (PU). In this paper, we propose an intelligent reflecting surface (IRS) aided dynamic spectrum sharing scheme, where an IRS assisted SU link dynamically shares the spectrum opportunities with a PU link based on the eavesdropped automatic repeat request (ARQ) feedback from the PU. We model the dynamic spectrum sharing problem as a Markov decision process (MDP), where we jointly optimize the SU transmit power and IRS reflect beamforming to maximize the cumulative expected achievable rate of the SU link subject to the outage constraint of the PU link. We propose a deep reinforcement learning (DRL) algorithm to achieve the optimal spectrum sharing policy. Experimental results show that the proposed proximal policy optimization (PPO) algorithm outperforms the traditional policy gradient (PG) and deep deterministic policy gradient (DDPG) algorithms by 100% and 46% in terms of spectrum utilization efficiency, respectively.","PeriodicalId":199421,"journal":{"name":"2022 14th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130207658","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}

引用次数: 1

Simple Quantum Communication Protocol Based on Bell Test 基于贝尔测试的简单量子通信协议

2022 14th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2022-11-01 DOI: 10.1109/WCSP55476.2022.10039287

Yiyou Fan, Zaichen Zhang

{"title":"Simple Quantum Communication Protocol Based on Bell Test","authors":"Yiyou Fan, Zaichen Zhang","doi":"10.1109/WCSP55476.2022.10039287","DOIUrl":"https://doi.org/10.1109/WCSP55476.2022.10039287","url":null,"abstract":"In this paper, we propose a robust quantum communication protocol which needs Bell test only with one round classical communication. Current quantum communication protocols such as quantum dense code and quantum direct communication protocol are vulnerable to interference, and quantum key distribution protocol which have already in large scale use needs multiple rounds classical communication to remove the effects of noise. Bell test is a well-known entanglement detector and as a powerful tool to verify the quantum non-locality that the quantum correlation between two space separated objects. It has been applied in several quantum communication protocols for security check and network relay. Moreover, we found that entanglement is a valuable quantum correlation resource itself and Bell test can verify it. In our protocol, the quantum entanglement is used to establish a shared code information space between sender and receiver via the peculiar quantum correlation. The information is encoded as the position of message sequence and the receiver decodes it by a Bell Test, the maximum correlation value occurs exactly at the encoded position. The protocol completes information transmission by only one round classical communication and work well under imperfect apparatus as well. Our protocol is simple and be implemented seamlessly in existing entanglement based quantum communication protocol.","PeriodicalId":199421,"journal":{"name":"2022 14th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129296550","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}

引用次数: 0

A Delegated Quantum Approximate Optimization Algorithm 委托量子近似优化算法

2022 14th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2022-11-01 DOI: 10.1109/WCSP55476.2022.10039146

Yuxun Wang, Junyu Quan, Qin Li

引用次数: 0

Ergodic Capacity and Outage Probability Analysis of RIS-Aided Hybrid Satellite-Terrestrial Networks ris辅助星地混合网络遍历容量及中断概率分析

2022 14th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2022-11-01 DOI: 10.1109/WCSP55476.2022.10039315

Yin Ding, Yulong Zou, Bin Li

引用次数: 0

Optimized Uplink Transmission for C-RAN with Hybrid Analog-digital Beamforming and Resolution-adaptive ADCs 基于混合模数波束形成和分辨率自适应adc的C-RAN上行传输优化

2022 14th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2022-11-01 DOI: 10.1109/WCSP55476.2022.10039489

Min Hua, Fei Gao, Xinlai Luo, Wenqing Li, Zhiyong Chen, Bin Xia

{"title":"Optimized Uplink Transmission for C-RAN with Hybrid Analog-digital Beamforming and Resolution-adaptive ADCs","authors":"Min Hua, Fei Gao, Xinlai Luo, Wenqing Li, Zhiyong Chen, Bin Xia","doi":"10.1109/WCSP55476.2022.10039489","DOIUrl":"https://doi.org/10.1109/WCSP55476.2022.10039489","url":null,"abstract":"In this paper, we consider the uplink in a cloud radio access network, where analog-beamforming and resolution- adaptive ADCs are adopted at each the network remote radio heads (RRH) with large number of antennas. To maximize the minimum uplink signal-to-interference-plus-noise ratio over all users, the transmit power at the users, the analog beamforming and the quantization bit allocation at each RRH, and the digital beamforming at the baseband processing unit are jointly optimized. Specifically, we consider a limited fronthaul capacity and per-user power constraint as well as the modulus constraint on the analog beamforming elements. The analog combiner for an RF chain is designed to maximize the effective channel gain of the selected user while reducing the inter-user interference in a distributed manner at each RRH. For a given analog combiner, the user power, quantization bit allocation at each RRH, and the digital beamforming are jointly designed via an alternating optimization technique. Numerical results show the resulting significant performance advantage of the proposed scheme.","PeriodicalId":199421,"journal":{"name":"2022 14th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127917028","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}

引用次数: 0