2018 IEEE Wireless Communications and Networking Conference (WCNC)最新文献_第4页

Virtual full-duplex distributed spatial modulation with SER-optimal and suboptimal detection 虚拟全双工分布空间调制与ser最优和次最优检测

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-18 DOI: 10.1109/WCNC.2018.8377333

Amir Shehni, M. Flanagan

{"title":"Virtual full-duplex distributed spatial modulation with SER-optimal and suboptimal detection","authors":"Amir Shehni, M. Flanagan","doi":"10.1109/WCNC.2018.8377333","DOIUrl":"https://doi.org/10.1109/WCNC.2018.8377333","url":null,"abstract":"Spatial modulation, a multiple-input multipleoutput (MIMO) technology which uses the antenna index as an additional means of conveying information, is an emerging technology for modern wireless communications. In this paper, a new distributed version of spatial modulation is proposed which achieves virtual full-duplex communication (VFD-DSM), allowing the source to transmit new data while the relay set forwards the source's data in every time slot. Two maximum a posteriori (MAP) detection methods at the destination are proposed for this VFD-DSM protocol: one, called local MAP, is based on processing the signals received over each pair of consecutive time slots, while the other, called global MAP, is based on symbol-error-rate optimal detection over an entire frame of data. Simulation results for the proposed VFD-DSM protocol indicate that for source data detection at high signal-to-noise ratio (SNR), VFD-DSM with local MAP detection can provide a similar error rate performance to that of successive relaying, while providing a significant throughput advantage since the relays can forward the source transmissions while also transmitting their own data. Furthermore, the use of global MAP detection is shown to yield a further 1.8 dB improvement in source data error rate while still maintaining this throughput advantage.","PeriodicalId":360054,"journal":{"name":"2018 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"87 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123445873","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

Designing joint precoding and beamforming in a multiple gateway multibeam satellite system 多网关多波束卫星系统联合预编码与波束形成设计

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-18 DOI: 10.1109/WCNC.2018.8377156

Vahid Joroughi, B. Shankar, S. Maleki, S. Chatzinotas, J. Grotz, B. Ottersten

{"title":"Designing joint precoding and beamforming in a multiple gateway multibeam satellite system","authors":"Vahid Joroughi, B. Shankar, S. Maleki, S. Chatzinotas, J. Grotz, B. Ottersten","doi":"10.1109/WCNC.2018.8377156","DOIUrl":"https://doi.org/10.1109/WCNC.2018.8377156","url":null,"abstract":"This paper aims to design joint on-ground precoding and on-board beamforming of a multiple gateway multibeam satellite system in a hybrid space-ground mode where full frequency reuse pattern is considered among the beams. In such an architecture, each gateway serves a cluster of adjacent beams such that the adjacent clusters are served through a set of gateways that are located at different geographical areas. However, such a system brings in two challenges to overcome. First, the inter-beam interference is the bottleneck of the whole system and applying interference mitigation techniques becomes necessary. Second, as the data demand increases, the ground and space segments should employ extensive bandwidth resources in the feeder link accordingly. This entails embedding an extra number of gateways aiming to support a fair balance between the increasing demand and the corresponding required feeder link resources. To solve these problems, this study investigates the impact of employing a joint multiple gateway architecture and onboard beamforming scheme. It is shown that by properly designing the on-board beamforming scheme, the number of gateways can be kept affordable even if the data demand increases. Moreover, Zero Forcing (ZF) precoding technique is considered to cope with the inter-beam interference where each gateway constructs a part of block ZF precoding matrix. The conceived designs are evaluated with a close-to-real beam pattern and the latest broadband communication standard for satellite communications.","PeriodicalId":360054,"journal":{"name":"2018 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128934386","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

Dynamic resource allocation and rate coverage analysis of two-tier HetNet with cognitive femtocell 基于认知飞蜂窝的两层HetNet动态资源分配与速率覆盖分析

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-17 DOI: 10.1109/WCNC.2018.8377162

Waleed Al Sobhi, H. Aghvami

{"title":"Dynamic resource allocation and rate coverage analysis of two-tier HetNet with cognitive femtocell","authors":"Waleed Al Sobhi, H. Aghvami","doi":"10.1109/WCNC.2018.8377162","DOIUrl":"https://doi.org/10.1109/WCNC.2018.8377162","url":null,"abstract":"The tremendous growth of mobile multimedia applications leads to increased traffic as well as energy consumption in cellular mobile communications. Hence, further improvements in resource allocation are essential. Wireless communication systems are aimed at providing higher capacity, improved, and continuous connectivity and minimizing energy consumption to support data-intensive multimedia applications. The main contribution of this paper is toward the maximization of the spectrum and power efficiencies of such networks through intelligent Q-learning-based control algorithms in the Downlink. The model in this paper considers a two-tier HetNet with Cognitive Open Access femtocell, which is designed using stochastic geometry tool. Furthermore, we analyzed and evaluated the Rate Coverage performance for macrocell and femtocell users over the Rayleigh Fading environment in the Downlink. The MonteCarlo simulations results that have been obtained and validated showed that the proposed method achieved an increased overall capacity while guaranteeing the primary user service level. Moreover, Rate Coverage signifies the user population meeting their target threshold. These factors cumulatively enhanced the overall network capacity.","PeriodicalId":360054,"journal":{"name":"2018 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"230 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121486375","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

Cache-aided millimeter wave Ad-Hoc networks 缓存辅助毫米波Ad-Hoc网络

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-16 DOI: 10.1109/WCNC.2018.8377389

Satyanarayana Vuppala, T. Vu, S. Gautam, S. Chatzinotas, B. Ottersten

引用次数: 3

Joint wireless information and energy transfer in cache-assisted relaying systems 缓存辅助中继系统中的联合无线信息和能量传输

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-16 DOI: 10.1109/WCNC.2018.8377418

S. Gautam, T. Vu, S. Chatzinotas, B. Ottersten

引用次数: 8

Optimal cache placement for VoD services with wireless multicast and cooperative caching 基于无线多播和协同缓存的VoD服务的最佳缓存布局

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377128

Hao Feng, Zhiyong Chen, Hui Liu, Dongwei Wang

{"title":"Optimal cache placement for VoD services with wireless multicast and cooperative caching","authors":"Hao Feng, Zhiyong Chen, Hui Liu, Dongwei Wang","doi":"10.1109/WCNC.2018.8377128","DOIUrl":"https://doi.org/10.1109/WCNC.2018.8377128","url":null,"abstract":"Wireless multicast and client caching are two promising approaches to provide scalable video-on-demand (VoD) services. In this paper, we consider VoD services with client pre-caching under asynchronous requests, where a client request watches the desired video from the beginning to the end. A requesting client can retrieve the data of the requested video from its local cache, other clients it meets via device-to-device (D2D) communication, and the BS multicast transmission. Under this model, we optimize the cache placement to minimize the average traffic rate of BS transmission by the optimal exploitation of BS multicast and cooperative caching. Specifically, we first formulate the cache placement problem into a separable concave minimization problem with convex constraints, which can be solved via convex underestimation and branch bound, where the global optimality is achieved at the cost of a very high computational complexity. To reduce the complexity, we further adopt the difference of convex algorithm. Moreover, two special cases are investigated, i.e., without D2D communication and without BS multicast. Simulation results verify the effectiveness of the proposed scheme which combines BS multicast and cooperative caching.","PeriodicalId":360054,"journal":{"name":"2018 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115424243","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

Wireless transmission design with neural network for radio-frequency energy harvesting 基于神经网络的射频能量采集无线传输设计

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377410

Yuchen Qian, Yuan Xing, Liang Dong

引用次数: 1

Beyond GNSS: Highly accurate localization for cooperative-intelligent transport systems 超越GNSS:协作智能交通系统的高精度定位

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377457

S. Severi, H. Wymeersch, Jérôme Härri, M. Ulmschneider, B. Denis, Marcus Bartels

引用次数: 19

Scalable and cost-efficient algorithms for baseband unit (BBU) function split placement 基带单元(BBU)功能拆分放置的可扩展且经济高效的算法

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377053

Niezi Mharsi, Makhlouf Hadji, D. Niyato, William Diego, R. Krishnaswamy

引用次数: 8

Virtual security as a service for 5G verticals 5G垂直行业的虚拟安全即服务

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377298

Yacine Khettab, Miloud Bagaa, D. Dutra, T. Taleb, Nassima Toumi

引用次数: 41