2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)最新文献

Direct Beamformer Estimation for Hybrid Architecture in mmWave Dynamic TDD System 毫米波动态TDD系统中混合结构的直接波束形成估计

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2020-04-01 DOI: 10.1109/WCNCW48565.2020.9124904

P. Shah, Krishna Joshi, S. Joshi, Antti Tölli, K. Umebayashi

引用次数: 0

Joint Trajectory Optimization and Time Slot Allocation for Buffer-Aided UAV Mobile Relaying 缓冲辅助无人机移动中继联合轨迹优化与时隙分配

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2020-04-01 DOI: 10.1109/WCNCW48565.2020.9124742

Yili Liu, Ning Wang, Lingfeng Shen, Zhengyu Zhu, X. Mu

{"title":"Joint Trajectory Optimization and Time Slot Allocation for Buffer-Aided UAV Mobile Relaying","authors":"Yili Liu, Ning Wang, Lingfeng Shen, Zhengyu Zhu, X. Mu","doi":"10.1109/WCNCW48565.2020.9124742","DOIUrl":"https://doi.org/10.1109/WCNCW48565.2020.9124742","url":null,"abstract":"Unmanned aerial vehicle (UAV) communication has been attracting increasing research interests recently. In this work, we study a buffer-aided single-UAV mobile relaying system which assists communication between a source node and a destination node on the ground. Specifically, in a slotted time system where each time slot experiences quasi-static channel condition, the buffer-aided UAV relayâ€™s flight trajectory and the allocation of the time slots for transmission and reception are jointly optimized, subject to the information causality and UAV mobility constraints. The formulated problem is non-convex and the two sets of design variables, i.e., the trajectory position variables and the time slot allocation variables, are coupled. In order to make the problem tractable, we relax and decompose the original problem into two subproblems, i.e., the flight trajectory optimization subproblem and the time slot allocation subproblem, such that the two sets of design variables are decoupled. The two subproblems are optimized in an alternating manner until convergence to obtain solution to the joint optimization problem. Simulation results show that the proposed iterative alternating optimization algorithm is efficient and fast converging.","PeriodicalId":443582,"journal":{"name":"2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122706445","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

Joint Active Device and Data Detection for Massive MTC Relying on Spatial Modulation 基于空间调制的大规模MTC联合有源器件与数据检测

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2020-04-01 DOI: 10.1109/WCNCW48565.2020.9124834

Li Qiao, Zhen Gao

{"title":"Joint Active Device and Data Detection for Massive MTC Relying on Spatial Modulation","authors":"Li Qiao, Zhen Gao","doi":"10.1109/WCNCW48565.2020.9124834","DOIUrl":"https://doi.org/10.1109/WCNCW48565.2020.9124834","url":null,"abstract":"The Internet of Things promises the massive connectivity of everything ubiquitously, whereas enabling massive machine-type communications (mMTC) is one of the paramount hurdles. To this end, a new paradigm is conceived for mMTC by employing spatial modulation at the devices for enhancing throughput and massive multi-input multi-output at the base station with improved detection performance. However, the associated massive access poses the intractable active device and data detection challenge. In this paper, we formulate the massive access problem as sparse signal recovery problem by exploiting the sporadic traffic of mMTC. To solve this problem, we propose a joint structured approximate message passing (JS-AMP) algorithm for joint active device and data detection. Specifically, we use AMP to decouple the superimposed received signal into uncoupled scalar elements. Furthermore, to achieve enhanced data detection performance, we compute the posterior estimation of each scalar element by using the structured sparsity of spatial modulated symbols. Moreover, we estimate the device activity by exploiting expectation maximization, where the block sparsity of successive time slots is considered for improving performance. Finally, simulation results demonstrate that the proposed solution exhibits a significant performance gain over the state-of- the-art solutions.","PeriodicalId":443582,"journal":{"name":"2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122081695","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

Vehicular Adhoc Networks Protocol to Avoid Traffic Signal Delay 避免交通信号延迟的车辆自组网协议

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2020-04-01 DOI: 10.1109/WCNCW48565.2020.9124749

Muhammad Diyan, Bhagya Nathali Silva, Jihun Han, Kyuchang Lee, Zhenbo Cao, K. Han

引用次数: 0

RAN Resource Slicing and Sharing with NOMA for Latency Reduction in Uplink URLLC Networks 基于NOMA的RAN资源切片与共享在URLLC上行网络中的时延降低

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2020-04-01 DOI: 10.1109/WCNCW48565.2020.9124787

Nadia Imtiaz Jaya, Md. Farhad Hossain

引用次数: 3

A Public Safety Framework for Immersive Aerial Monitoring through 5G Commercial Network 基于5G商用网络的沉浸式空中监控公共安全框架

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2020-04-01 DOI: 10.1109/WCNCW48565.2020.9124805

Sejin Seo, S. Kim, Seong-Lyun Kim

引用次数: 8

5G-ALLSTAR: An Integrated Satellite-Cellular System for 5G and Beyond 5G- allstar: 5G及以后的综合卫星蜂窝系统

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2020-04-01 DOI: 10.1109/WCNCW48565.2020.9124751

Junhyeong Kim, G. Casati, A. Pietrabissa, A. Giuseppi, E. Strinati, N. Cassiau, Gosan Noh, H. Chung, I. Kim, Marjorie Thary, Jean-Michel Houssin, F. Pigni, Sylvain Colombero, Pierre Dal Zotto, Leszek Raschkowski, S. Jaeckel

{"title":"5G-ALLSTAR: An Integrated Satellite-Cellular System for 5G and Beyond","authors":"Junhyeong Kim, G. Casati, A. Pietrabissa, A. Giuseppi, E. Strinati, N. Cassiau, Gosan Noh, H. Chung, I. Kim, Marjorie Thary, Jean-Michel Houssin, F. Pigni, Sylvain Colombero, Pierre Dal Zotto, Leszek Raschkowski, S. Jaeckel","doi":"10.1109/WCNCW48565.2020.9124751","DOIUrl":"https://doi.org/10.1109/WCNCW48565.2020.9124751","url":null,"abstract":"This paper provides an overview of recent research activities of the 5G AgiLe and fLexible integration of SaTellite And cellulaR (5G-ALLSTAR) project which aims to develop Multi-Connectivity technology that integrates the cellular and satellite networks to provide seamless, reliable and ubiquitous broadband services. 5G-ALLSTAR also entails developing millimeter-wave (mmWave) 5G New Radio (NR)-based cellular access system and investigating the feasibility of NR-based satellite access for providing broadband and reliable 5G services. In addition, spectrum sharing between cellular and satellite networks is studied. With all the technologies developed, 5G-ALLSTAR will showcase the first fully integrated satellite and cellular prototype system for 5G and beyond 5G (B5G) services at a big event (e.g., sporting event like Roland-Garros) in 2021. This paper also provides a preliminary techno-economic analysis on potential use cases targeting vertical markets, and introduces recent standardization activities of relevance.","PeriodicalId":443582,"journal":{"name":"2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130112646","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: 15

A Study on High-Efficiency Energy Detection-Based Spectrum Measurements 基于高效能量检测的光谱测量方法研究

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2020-04-01 DOI: 10.1109/WCNCW48565.2020.9124906

Hiroki Iwata, K. Umebayashi, Ahmed Al-Tahmeesschi, S. Joshi, M. López-Benítez, Janne J. Lehtomäki

{"title":"A Study on High-Efficiency Energy Detection-Based Spectrum Measurements","authors":"Hiroki Iwata, K. Umebayashi, Ahmed Al-Tahmeesschi, S. Joshi, M. López-Benítez, Janne J. Lehtomäki","doi":"10.1109/WCNCW48565.2020.9124906","DOIUrl":"https://doi.org/10.1109/WCNCW48565.2020.9124906","url":null,"abstract":"Statistical information in terms of spectrum occupancy is useful for the efficient and smart dynamic spectrum sharing, and it can be obtained by long-term, broadband, and wide-area spectrum measurements. In this paper, we investigate an energy detection (ED)-based spectrum measurements, in which the noise floor (NF) estimation is a key functionality for the appropriate ED threshold setting. Typically, the NF has the slowly time- varying property and frequency-dependency, and several NF estimation algorithms, including forward consecutive mean excision (FCME) algorithm-based method, have been proposed. However, these methods did not deeply consider the slowly time varying property of the NF and is computationally inefficient. Accordingly, we propose a computational complexity reduction algorithm based on NF level change detection. This algorithm is computationally efficient, since it skips the NF estimation process when the NF does not change. In numerical evaluations, we show the efficiency and the validity of the proposed algorithm.","PeriodicalId":443582,"journal":{"name":"2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134149800","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

Analysis of Spectral Efficiency in Hybrid Networks with Full Duplex Base Stations and TDD Users 全双工基站和TDD用户混合网络频谱效率分析

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2020-04-01 DOI: 10.1109/WCNCW48565.2020.9124878

Tong Li, Shanghui Xiao, S. Shao, Bin Yu, Chengjun Sun

{"title":"Analysis of Spectral Efficiency in Hybrid Networks with Full Duplex Base Stations and TDD Users","authors":"Tong Li, Shanghui Xiao, S. Shao, Bin Yu, Chengjun Sun","doi":"10.1109/WCNCW48565.2020.9124878","DOIUrl":"https://doi.org/10.1109/WCNCW48565.2020.9124878","url":null,"abstract":"In the asymmetric and time-variant traffic, the hybrid network with a full duplex (FD) base station (BS) and multiple time division duplex (TDD) user equipment (UE) is more flexible than the traditional TDD network, since it is not limited by the fixed TDD frame structure. This paper focuses on the specific hybrid network with FD BS and TDD UE. First, applying the hybrid network must ensure that the intra-cell co-frequency interference (CI) has been suppressed. To achieve this goal, a spatial isolation method and its corresponding resource allocation are proposed in the specific hybrid network with FD BS and TDD UE. Then, to evaluate the gain of the hybrid network compared with the TDD network, the spectral efficiency is derived and analyzed. Theoretical and simulation results show that the gain of hybrid network increases with the number of users and decreases with the number of sub-regions when compared with the TDD network. Furthermore, the uplink gain increases with the ratio of the number of time slots for the uplink to that for the downlink (UDR) in the TDD frame, and can be greater than 2 when UDR is adequately small, while the downlink is reversed. However, the total gain of spectral efficiency is smaller than 2, which is the FD upper bound restricted by FD system structure. Therefore, when compared with the symmetric and time-invariant traffic, it is more efficient to apply FD in networks with asymmetric and time-variant traffic where the performance of the TDD network is severely limited.","PeriodicalId":443582,"journal":{"name":"2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134238261","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 Optimal Allocation of Wireless Resource and MEC Computation Capability in Vehicular Network 车载网络无线资源联合优化分配与MEC计算能力

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2020-04-01 DOI: 10.1109/WCNCW48565.2020.9124737

Min Zhu, Yanzhao Hou, Xiaofeng Tao, Tengfei Sui, Lei Gao

{"title":"Joint Optimal Allocation of Wireless Resource and MEC Computation Capability in Vehicular Network","authors":"Min Zhu, Yanzhao Hou, Xiaofeng Tao, Tengfei Sui, Lei Gao","doi":"10.1109/WCNCW48565.2020.9124737","DOIUrl":"https://doi.org/10.1109/WCNCW48565.2020.9124737","url":null,"abstract":"Numerous applications of vehicles are computation- intensive and delay-sensitive. In order to deal with the problem caused by limited wireless and computation capability in the Mo- bile Edge Computing (MEC) enabled vehicular network, a Joint Optimization of Wireless and Computation Allocation (JOWCA) algorithm is proposed to minimize global delay of MEC-enabled vehicular network. The JOWCA algorithm consists of vehicle- to-vehicle (V2X) matching and MEC computation capability allocation. In the V2X matching, a Graph-based Interference Cancellation (Graph-IC) scheme is proposed to allocate Resource Blocks (RBs) for vehicle-to- infrastructure (V2I) links and vehicle- to-vehicle (V2V) links to mitigate co-channel interference. The Graph-IC contains an adaptive interference threshold modified Heuristic Clustering (HC) algorithm and Hungarian algorithm. In the MEC computation capability allocation, the optimal solution of V2I link offloading ratio and MEC computation capability scheduling are obtained by applying Karush-Kuhn- Tucker (KKT) condition. Simulation shows that the proposed scheme can effectively reduce the global delay of the MEC- enabled vehicular network.","PeriodicalId":443582,"journal":{"name":"2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"107 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134092371","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: 7