2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring)最新文献_第10页

Towards Biologically Inspired Decentralized Platooning for Autonomous Vehicles 面向自动驾驶车辆的生物启发分散队列

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Pub Date : 2021-04-01 DOI: 10.1109/VTC2021-Spring51267.2021.9448731

S. Sreenivasamurthy, K. Obraczka

引用次数: 3

Bandwidth-Efficient Frequency Hopping based Anti-Jamming Game for Cognitive Radio assisted Wireless Sensor Networks 基于带宽高效跳频的认知无线电辅助无线传感器网络抗干扰博弈

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Pub Date : 2021-04-01 DOI: 10.1109/VTC2021-Spring51267.2021.9448885

Khalid Ibrahim, I. Qureshi, A. Malik, S. Ng

引用次数: 3

MU-MIMO Based Cognitive Radio in Internet of Vehicles (IoV) for Enhanced Spectrum Sensing Accuracy and Sum Rate 基于MU-MIMO的车联网认知无线电提高频谱感知精度和和速率

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Pub Date : 2021-04-01 DOI: 10.1109/VTC2021-Spring51267.2021.9449068

Mohammad Amazad Hossain, M. Schukat, E. Barrett

{"title":"MU-MIMO Based Cognitive Radio in Internet of Vehicles (IoV) for Enhanced Spectrum Sensing Accuracy and Sum Rate","authors":"Mohammad Amazad Hossain, M. Schukat, E. Barrett","doi":"10.1109/VTC2021-Spring51267.2021.9449068","DOIUrl":"https://doi.org/10.1109/VTC2021-Spring51267.2021.9449068","url":null,"abstract":"Vehicular ad-hoc networks (VANETs) provide the basic infrastructure for intelligent transportation systems (ITS), as it allows vehicles to access the Internet and to communicate intra-vehicle, inter-vehicle and vehicle to the roadside base station. The Internet of Vehicles (IoV) is an evolution of VANETs following the IoT paradigm. Nowadays, the spectrum scarcity is a big issue for the IoV networks due to the increased demand for connecting more vehicles. The cognitive radio (CR) enabled IoV networks can address this issue. In this paper, we propose a multi-user multiple-input and multiple-output (MU-MIMO) antennas aided cluster based cooperative spectrum sensing (CB-CSS) scheme for CR enabled IoV networks. In this proposed scheme, each CR embedded vehicles (CRV) sends sensing data to the cluster head (CH) which makes a cluster decision by using the soft data fusion rule like the equal gain combining (EGC) fusion rule and the maximal ratio combining (MRC) fusion rule; whereas the fusion centre (FC) makes a final global decision by using the K-out-of-N rule to identify the presence of the PU signal. Simulation results show that the proposed MU-MIMO antennas aided CB-CSS scheme achieves a better sensing gain, enhanced the sum rate and lower global error probability when compared to both the conventional single-input and single-output (SISO) antenna based cooperative spectrum sensing (CSS) and non-cooperative spectrum sensing (NCSS) schemes. In addition, the proposed scheme achieves a lower traffic overhead when compared to the MU-MIMO based CSS scheme without the cluster.","PeriodicalId":194840,"journal":{"name":"2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123297774","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: 4

Convolutional Neural Networks based Denoising for Indoor Localization 基于卷积神经网络的室内定位去噪

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Pub Date : 2021-04-01 DOI: 10.1109/VTC2021-Spring51267.2021.9448839

Wafa Njima, Marwa Chafii, Ahmad Nimr, G. Fettweis

引用次数: 8

MmWave Massive MIMO Hybrid Precoding Prediction in High Mobility Scenarios 高移动场景下的毫米波大规模MIMO混合预编码预测

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Pub Date : 2021-04-01 DOI: 10.1109/VTC2021-Spring51267.2021.9448960

Yipai Yan, Honglin Zhao, Jiayan Zhang, Chengzhao Shan, Yongkui Ma

{"title":"MmWave Massive MIMO Hybrid Precoding Prediction in High Mobility Scenarios","authors":"Yipai Yan, Honglin Zhao, Jiayan Zhang, Chengzhao Shan, Yongkui Ma","doi":"10.1109/VTC2021-Spring51267.2021.9448960","DOIUrl":"https://doi.org/10.1109/VTC2021-Spring51267.2021.9448960","url":null,"abstract":"Aircraft-assisted wireless communications have been extensively used in the military and civil fields. With the increasing applications for high data rate aircraft-assisted services such as virtual reality, ultra-high definition transmission video, there is an explosive demand for data rate in high mobility air-to-air (A2A) communication. There exist some promising solutions for high data rate wireless communications, including millimeter wave (mmWave) communications and massive MIMO hybrid precoding. However, most of previous works consider time invariant channel, and assume perfect channel state information (CSI), which is unsatisfactory in high mobility system. And a novel hybrid precoding strategy under high mobility scenarios is designed in this paper. First, some preliminaries about mmWave massive MIMO fast time-varying channel model is given. Then location-aided analog precoder and combiner are designed, and time-varying digital precoder based on matrix series approximation is also proposed. Moreover, the performance loss is analyzed through average effective channel power loss. Simulation results manifest that compared with the conventional strategy, the proposed strategy effectively improves the spectral efficiency in high mobility scenarios.","PeriodicalId":194840,"journal":{"name":"2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124469072","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: 2

Low Latency Low Loss Scalable Throughput in 5G Networks 5G网络中的低延迟低损耗可扩展吞吐量

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Pub Date : 2021-04-01 DOI: 10.1109/VTC2021-Spring51267.2021.9448764

D. Brunello, I. Johansson, Mustafa Ozger, C. Cavdar

{"title":"Low Latency Low Loss Scalable Throughput in 5G Networks","authors":"D. Brunello, I. Johansson, Mustafa Ozger, C. Cavdar","doi":"10.1109/VTC2021-Spring51267.2021.9448764","DOIUrl":"https://doi.org/10.1109/VTC2021-Spring51267.2021.9448764","url":null,"abstract":"Low Latency Low Loss Scalable Throughput (L4S) is a technology intended to reduce queue delay problems, ensuring low latency to Internet Protocol flows with a high throughput performance. To reach this goal, it relies on Explicit Congestion Notification (ECN), a mechanism that marks packets to signal congestion in the network avoiding packets to be dropped. The congestion signals are managed at the sender and receiver sides thanks to scalable congestion control algorithms. In this paper, the challenges to implement L4S in a 5G network are analyzed. Using a proprietary state-of-the-art network simulator, the L4S marking strategy has been implemented at the Packed Data Convergence Protocol layer. To evaluate the benefits of the implementation, L4S has been adopted to support Augmented Reality (AR) video gaming traffic while using the IETF experimental standard Self-Clocked Rate Adaptation for Multimedia (SCReAM) for the congestion control. The results show that the video gaming traffic experiences lower delay when supported by L4S. Moreover, in all the cases analyzed, L4S provides an average application layer throughput above the minimum requirements of a high-rate latency-critical application, even at high system loads. Furthermore, the packet loss rate has been significantly reduced thanks to L4S. If it is used in a combination with a Delay Based Scheduler (DBS), a packet loss rate very close to zero has been reached.","PeriodicalId":194840,"journal":{"name":"2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123537890","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: 6

Impact of NLPA on SWIPT Enabled Two-Way AF Cooperative Network NLPA对SWIPT双向AF合作网络的影响

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Pub Date : 2021-04-01 DOI: 10.1109/VTC2021-Spring51267.2021.9448815

Deepak Kumar, P. Singya, V. Bhatia

引用次数: 6

Position based Optimization of RF MAC Protocol for Sensing Technology Enabled Applications 基于位置的传感技术应用射频MAC协议优化

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Pub Date : 2021-04-01 DOI: 10.1109/VTC2021-Spring51267.2021.9448760

Suneel Kumar, A. Khan, R. Rasheed, Shafaq Zia, Sandeep Pirbhulal

{"title":"Position based Optimization of RF MAC Protocol for Sensing Technology Enabled Applications","authors":"Suneel Kumar, A. Khan, R. Rasheed, Shafaq Zia, Sandeep Pirbhulal","doi":"10.1109/VTC2021-Spring51267.2021.9448760","DOIUrl":"https://doi.org/10.1109/VTC2021-Spring51267.2021.9448760","url":null,"abstract":"Internet of things is modified form of sensor network and in sensor network, radio frequency charging of sensor nodes is a recent and emerging method that improves network lifetime by wirelessly charging sensor network nodes. However, RF charging faces many inherent issues such as interference within energy transmitting nodes, selection of appropriate data communication and energy transfer intervals and to find the optimal charging threshold for fair distribution of channel resources. Several Medium Access Control (MAC) schemes have been proposed to balance charging and communication by making sectors within the network and by reducing energy consumption of nodes that have longer charging durations. In this paper, we have tried to achieve a fast charging of sensor nodes through the optimal placement of energy transmitting nodes within the network. We have also investigated different techniques for the reduction of network outage time such as delaying the charging interval to the instance where half of the nodes within a wireless sensor network require immediate charging. The simulation work has been done using MATLAB. It is noted that the proposed framework increases network throughput (up to 50%), enhances channel utilization for data communication and reduces average time (50% improvement) required for charging sensor nodes.","PeriodicalId":194840,"journal":{"name":"2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126178330","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

Joint uplink PD-NOMA and SCMA for future multiple access systems 面向未来多址系统的联合上行PD-NOMA和SCMA

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Pub Date : 2021-04-01 DOI: 10.1109/VTC2021-Spring51267.2021.9449037

Xiaotian Fu, M. Pischella, D. L. Ruyet

引用次数: 0

Adaptive Minimization of Direct Sunlight Noise on V2V-VLC Receivers V2V-VLC接收机阳光直射噪声的自适应最小化

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Pub Date : 2021-04-01 DOI: 10.1109/VTC2021-Spring51267.2021.9448714

K. Illanko, Xavier N Fernando

{"title":"Adaptive Minimization of Direct Sunlight Noise on V2V-VLC Receivers","authors":"K. Illanko, Xavier N Fernando","doi":"10.1109/VTC2021-Spring51267.2021.9448714","DOIUrl":"https://doi.org/10.1109/VTC2021-Spring51267.2021.9448714","url":null,"abstract":"Shot noise due to direct sunlight is the major cause of SNR degradation in vehicle to vehicle visible light communications (V2V-VLC) outdoors. This shot noise can be simply reduced by the receiver ‘looking away’ from the sun rays. However, this has to be done without reducing the received optical signal power, which is a 3-D tracking problem, where both transmitter and receiver are moving. This paper analyzes the resulting optimization problem and finds the optimal angle at which the instantaneous SNR is maximized. This depends on the incident angle of the optical signal as well as the incident angle of the sunlight. Note, the mobility adds random additive noise in addition to rapid angle variations. The paper uses an extended- Kalman filter to minimize the error and possible drift in the optimal angle in the presence of noisy measurements. This results in an adaptive SNR optimization system for real-time vehicle to vehicle visible light communications. We have also presented the analytical solution to the SNR optimization problem. Simulation results, on a curved freeway on a bright sunny day, demonstrate close matching between the actual optimal SNR and that achieved by the extended-Kalman filter.","PeriodicalId":194840,"journal":{"name":"2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128571838","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: 4