2018 10th International Conference on Wireless Communications and Signal Processing (WCSP)最新文献_第3页

Hybrid Beamformer Design with Low-Resolution Phase Shifters in MU-MISO SWIPT Systems MU-MISO SWIPT系统中低分辨率移相器混合波束形成器设计

2018 10th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2018-10-01 DOI: 10.1109/WCSP.2018.8555694

Rang Liu, Hongyu Li, Yiqun Guo, Ming Li, Qian Liu

{"title":"Hybrid Beamformer Design with Low-Resolution Phase Shifters in MU-MISO SWIPT Systems","authors":"Rang Liu, Hongyu Li, Yiqun Guo, Ming Li, Qian Liu","doi":"10.1109/WCSP.2018.8555694","DOIUrl":"https://doi.org/10.1109/WCSP.2018.8555694","url":null,"abstract":"Simultaneous wireless information and power transfer (SWIPT) is considered as a promising solution to offer convenient energy supplies to wireless devices. On the other hand, analog/digital hybrid beamforming, which can dramatically reduce power consumption, has been deemed as an energy efficient transceiver architecture. This paper investigates the problem of hybrid beamforming design with low-resolution PSs to achieve an energy efficient multi-user multi-input single-output (MUMISO) SWIPT system. Particularly, a base-station (BS), which is equipped with multiple antennas and hybrid beamforming architecture, simultaneously transfers information to one singleantenna information receiver (IR) and power to K distributed single-antenna energy receivers (ERs). While the IR has a target signal-to-noise ratio (SNR) requirement to assure the quality of service (QoS) of transmission, the K ERs have certain thresholds of receive signal power to guarantee the energy harvesting. We propose a novel iterative hybrid beamforming design algorithm to find the analog beamformer with constant amplitude and lowresolution phase constraints and the digital beamformer which can minimize the transmit power under both IR and ERs' requirements. Simulation results validate the effectiveness of the proposed hybrid beamforming design algorithm in the MU-MISO SWIPT systems.","PeriodicalId":423073,"journal":{"name":"2018 10th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126459238","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

Performance Modeling of LAA LBT with Random Backoff and a Variable Contention Window 具有随机回退和可变竞争窗口的LAA LBT性能建模

2018 10th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2018-10-01 DOI: 10.1109/WCSP.2018.8555559

Jie Xiao, Jun Zheng, Liangyu Chu, Qilei Ren

引用次数: 7

Joint Time Allocation and Power Splitting Schemes for Amplify-and-forward Relaying Network over Log-normal Fading Channel 对数正常衰落信道上放大转发中继网络的联合时间分配和功率分割方案

2018 10th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2018-10-01 DOI: 10.1109/WCSP.2018.8555892

Jianmei Shen, Yingting Liu, Hongwu Yang, Chun-man Yan

引用次数: 4

Joint optimization of Offloading and Resource Allocation in Vehicular Networks with Mobile Edge Computing 基于移动边缘计算的车载网络卸载与资源分配联合优化

2018 10th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2018-10-01 DOI: 10.1109/WCSP.2018.8555636

Jie Zhou, Fan Wu, Ke Zhang, Y. Mao, S. Leng

{"title":"Joint optimization of Offloading and Resource Allocation in Vehicular Networks with Mobile Edge Computing","authors":"Jie Zhou, Fan Wu, Ke Zhang, Y. Mao, S. Leng","doi":"10.1109/WCSP.2018.8555636","DOIUrl":"https://doi.org/10.1109/WCSP.2018.8555636","url":null,"abstract":"As a typical application of the technology of Internet of Things (IoT), Internet of Vehicle (IoV) is facing the explosive computation demands and restrict delay constrains. Vehicular networks with mobile edge computing (MEC) is a promising approach to address this problem. In this paper, we focus on the problem of reducing the completion time of Virtual Reality (VR) applications for IoV. To this end, we propose a cooperative approach for parallel computing and transmission for VR. In our proposed scheme, a VR task is divided into two sub-tasks firstly. Then one of the two is offloaded to the vehicle via wireless transmission so that the two sub-tasks can be processed at the MEC server and the vehicle separately and simultaneously. We formulate the scheme as a nonlinear optimization problem to jointly determine computation offloading proportion, communication resource and computation resource allocation. Due to the NP-hard property of this problem, a joint offloading proportion and resource allocation optimization (JOPRAO) algorithm is designed to obtain the optimal solution. Simulation results demonstrate that latency of VR task completion time can be decreased significantly by offloading the task and resource allocation strategy reasonably.","PeriodicalId":423073,"journal":{"name":"2018 10th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122254084","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: 25

Energy-Efficient Transceiver Design for Full-Duplex Cooperative NOMA Systems with SWIPT 基于SWIPT的全双工协同NOMA系统的节能收发器设计

2018 10th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2018-10-01 DOI: 10.1109/WCSP.2018.8555913

Xiaojuan Yin, Wei Wu, Haibo Dai, Pei Li, Baoyun Wang

引用次数: 4

A Physical-social-based Group Utility Maximization framework for Cooperative Caching in Mobile Networks 基于物理社会的移动网络协同缓存群体效用最大化框架

2018 10th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2018-10-01 DOI: 10.1109/WCSP.2018.8555675

Hao Zhou, Lei Xu, Jiaojiao Zhang

{"title":"A Physical-social-based Group Utility Maximization framework for Cooperative Caching in Mobile Networks","authors":"Hao Zhou, Lei Xu, Jiaojiao Zhang","doi":"10.1109/WCSP.2018.8555675","DOIUrl":"https://doi.org/10.1109/WCSP.2018.8555675","url":null,"abstract":"Cooperative caching in the device-to-device (D2D) networks is an effective solution to the problem of offloading data traffic at peak times. However, one of the main challenges of cooperative caching is the selfish nature of the user, and some users only cache what they are interested in and don't care about other people's needs. In this paper, we investigate a physical-social-based cooperative caching framework, considering the physical-social tie as a non-monetary incentive to motivate the data cache and share between users by using D2D communication. Specifically, we first define a novel physical-social tie, combining the physical factors and social relationship. After that, we formulate two mathematical programming models with or without the consideration of indirect physical-social tie, to find an optimal caching strategy with the target of maximizing the social group utility. Moreover, we adopt Six Degrees of Separation to analyze the indirect physical-social tie between users when these social users with direct physical-social tie cannot meet the date request of the user, and then devise an indirect social group formation algorithm (ISGFA) to obtain the indirect social group of the user. Finally, simulation results shows that the caching scheme obtained from our model is efficient and outperforms other caching schemes that without considering the physical-social tie.","PeriodicalId":423073,"journal":{"name":"2018 10th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133923986","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

Mode Filtering with a Small Horizontal Line Array* 模式过滤与一个小的水平线阵列*

2018 10th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2018-10-01 DOI: 10.1109/WCSP.2018.8555890

Yifeng Zhang, Jinjin Wang, Guolong Liang, Zhibo Shi

引用次数: 0

Promoting and Balancing Resource Utilization via Integration by Exploiting the Time-varying Property of Resource Requirements 利用资源需求的时变特性，通过整合促进和平衡资源利用

2018 10th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2018-10-01 DOI: 10.1109/WCSP.2018.8555641

Luyao Jin, Hongguang Sun, Min Sheng, Yan Shi, Jiandong Li

{"title":"Promoting and Balancing Resource Utilization via Integration by Exploiting the Time-varying Property of Resource Requirements","authors":"Luyao Jin, Hongguang Sun, Min Sheng, Yan Shi, Jiandong Li","doi":"10.1109/WCSP.2018.8555641","DOIUrl":"https://doi.org/10.1109/WCSP.2018.8555641","url":null,"abstract":"Virtualization technology improves the flexibility of a cloud data center network (CDCN) in resource allocation and leads to a dramatic increase in the resource utilization. Virtual network embedding or virtual machines placement refers to the problem of providing resources for tenants in CDCN. Most prior literature considers the conservative resource allocation strategy where the maximum resource requirement of virtual requests is always satisfied during their life time regardless of the resource requirement fluctuation. Such methods will definitely result in the resource wastage. By taking into account the time-varying resource requirement, we propose a novel virtual machine placement method, named MIE (Matching-based Integration for Embedding) in this paper. The key part of MIE is to enhance the resource utilization of physical machines (PM) and reduce their utilization fluctuation over time dimension by integrating the requirements with different variation tendencies. Our simulation experiments show that MIE can not only improve the resource utilization of physical machines, but also maintain the resource usage more stable. What's more, the number of active PMs is reduced and the acceptance ratio of virtual requests is enhanced.","PeriodicalId":423073,"journal":{"name":"2018 10th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131217626","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

Energy-efficient Optimization Scheme for SWIPT-based Distributed Antenna System 基于swipt的分布式天线系统节能优化方案

2018 10th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2018-10-01 DOI: 10.1109/WCSP.2018.8555878

Junya Chu, Xiangbin Yu, He Li, Qiuming Zhu

引用次数: 0

Delay Minimized Task Scheduling in Fog-Enabled IoT Networks 雾支持物联网网络中延迟最小化的任务调度

2018 10th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2018-10-01 DOI: 10.1109/WCSP.2018.8555532

Guowei Zhang, Fei Shen, Yueyue Zhang, Rong Yang, Yang Yang, Eduard Axel Jorswieck

引用次数: 14