2014 IEEE Globecom Workshops (GC Wkshps)最新文献_第9页

Motion modeling of mobile transmitter for image sensor based I2V-VLC, V2I-VLC, and V2V-VLC 基于I2V-VLC、V2I-VLC和V2V-VLC的图像传感器移动发射机运动建模

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063473

Masayuki Kinoshita, T. Yamazato, Hiraku Okada, T. Fujii, Shintaro Arai, T. Yendo, K. Kamakura

{"title":"Motion modeling of mobile transmitter for image sensor based I2V-VLC, V2I-VLC, and V2V-VLC","authors":"Masayuki Kinoshita, T. Yamazato, Hiraku Okada, T. Fujii, Shintaro Arai, T. Yendo, K. Kamakura","doi":"10.1109/GLOCOMW.2014.7063473","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2014.7063473","url":null,"abstract":"Visible light communication (VLC) using light-emitting diodes (LEDs) is drawing much attention. There are two types of VLC reception devices, a photodiode and an image sensor. VLC using image sensor is called image sensor based VLC. As the receiver only uses the image sensor pixels that sense LED transmission sources and discards other pixels, including those sensing noise sources, image sensor based VLC is an attractive solution for outdoor mobile applications. However, little evidence is available for channel modeling of image sensor based VLC in mobile outdoor environments, especially for motion modeling of VLC transmitter. In this paper, we propose a motion model of VLC transmitter. In particular, we consider three cases; infrastructure-to-vehicle VLC (I2V-VLC), vehicle-to-infrastructure VLC (V2I-VLC), and vehicle-to-vehicle VLC (V2V-VLC). As a result, we show that the motion model of the VLC transmitter on the captured image for the three aforementioned situations (i.e., I2V-VLC, V2I-VLC, and V2V-VLC) can be expressed in the identical pinhole camera model.","PeriodicalId":354340,"journal":{"name":"2014 IEEE Globecom Workshops (GC Wkshps)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124862946","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: 28

Massive MIMO for crowd scenarios: A solution based on random access 面向人群场景的大规模MIMO:一种基于随机访问的解决方案

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063456

J. H. Sørensen, E. Carvalho, P. Popovski

引用次数: 42

Resilient topology design for free space optical cellular backhaul networking 自由空间光蜂窝回程网络弹性拓扑设计

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063479

Yuan Li, N. Pappas, Vangelis Angelakis, M. Pióro, D. Yuan

引用次数: 14

A synchronization algorithm to facilitate joint detection 一种便于联合检测的同步算法

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063562

Andrew Apollonsky, Sam M. Keene

引用次数: 0

Punctured vs. multidimensional TCM — A comparison w.r.t. complexity 穿刺中医与多维中医——比较中医复杂性

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063631

Fabian Schuh, J. Huber

{"title":"Punctured vs. multidimensional TCM — A comparison w.r.t. complexity","authors":"Fabian Schuh, J. Huber","doi":"10.1109/GLOCOMW.2014.7063631","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2014.7063631","url":null,"abstract":"Trellis-coded modulation (TCM) is a power- and bandwidth efficient digital transmission scheme which offers very low structural delay of the data stream. Classical TCM uses a signal constellation of twice the cardinality compared to an uncoded transmission with one bit of redundancy per PAM symbol, i.e., application of codes with rates n-1/2 when 2n denotes the cardinality of the signal constellation. In order to offer a higher granularity of rates, multi-dimensional (i.e., D-dimensional) constellations had been proposed by means of combining subsequent one- or two-dimensional modulation steps, resulting in TCM schemes with 1/D bit redundancy per (real) dimension. A recently published alternative approach allows rate adjustment for TCM by means of puncturing of the convolutional code (CC) on which a TCM scheme is based on. In this paper it is shown that punctured TCM not only offers a higher flexibility in rate adjustment but significantly less decoding complexity when compared to MD-TCM. Throughout the paper, structural delay is considered, which is a lower bound on the actual delay and describes the inevitable delay solely depending on the structural properties of the coding scheme but not on processing time, propagation delay, etc.","PeriodicalId":354340,"journal":{"name":"2014 IEEE Globecom Workshops (GC Wkshps)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132105468","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

Column generation based-approach for IaaS aware Networked Edge Data-Centers 基于列生成的IaaS感知网络边缘数据中心方法

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063392

A. Jarray, Javier Salazar, A. Karmouch, J. Elias, A. Mehaoua

引用次数: 8

Coordinating standardization in Dynamic Spectrum Access 协调动态频谱接入标准化

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063491

S. Delaere, V. Gonçalves, P. Marques

{"title":"Coordinating standardization in Dynamic Spectrum Access","authors":"S. Delaere, V. Gonçalves, P. Marques","doi":"10.1109/GLOCOMW.2014.7063491","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2014.7063491","url":null,"abstract":"This paper investigates the gap between research into Dynamic Spectrum Access (DSA), and the standardization of these technologies, as well as ways in which coordination of standardization activities between EU funded research projects might help bridge this gap. Concretely, it first discusses the current state of standardization in CR and DSA, as well as the need for a coordinated approach to DSA standardization among European projects. It subsequently provides a short overview of the DSA and CR research landscape in Europe and briefly describes the objectives of the Cognitive Radio Standardization Initiative (CRS-i). The following sections on the paper then focus on a survey which was conducted among the 26 currently funded, Radio Access and Spectrum related EU projects, with specific analysis also performed for the CR and DSA related sub-cluster of projects. This survey provides insight into projects' current standardization activities and collaboration methods, as well as opportunities and bottlenecks for collaboration in standardization. The paper concludes that the coordination of standardization efforts, as well as specific instruments to enable the standardization of research results beyond the project lifetime, are desirable if Europe is to play a role in the global standardization of CR and DSA. Based on the survey and on close interactions with RAS cluster projects, the paper finally proposes a number of concrete coordination trajectories.","PeriodicalId":354340,"journal":{"name":"2014 IEEE Globecom Workshops (GC Wkshps)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116751504","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

On the human exposure to radio frequency radiations expected from future small connected objects 关于未来小型互联物体对人类射频辐射的影响

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063594

D. P. Huy, Y. Kokar, T. Sarrebourse, Nadine Malhouroux-Gaffet, P. Pajusco, C. Leray, A. Gati, J. Wiart

引用次数: 1

The impact of random power assignment in handshaking on wireless sensor network lifetime 握手中随机功率分配对无线传感器网络寿命的影响

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063431

Huseyin Ugur Yildiz, B. Tavlı

{"title":"The impact of random power assignment in handshaking on wireless sensor network lifetime","authors":"Huseyin Ugur Yildiz, B. Tavlı","doi":"10.1109/GLOCOMW.2014.7063431","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2014.7063431","url":null,"abstract":"Optimization of data and acknowledgement (ACK) packets' transmission power levels is necessary to prolong the lifetime of wireless sensor networks (WSNs). Utilizing the maximum power level available results in the minimum level of handshake failures, however, such a strategy will also result in energy waste because it may not be necessary to utilize the maximum power level at each link. Alternatively, the optimal data and ACK packet transmission levels can be determined for each link that minimizes the energy cost of handshaking. Accomplishing this task requires that the packet failure rates for each combination of power levels for data and ACK packets are measured through a close loop scheme which brings extra overhead when compared to the strategy of employing the highest power level. In this paper, we propose a novel strategy based on random power level assignments that do not require the overhead necessary to measure the handshake failure rate, yet, at the same time performs better than the maximum power level assignment strategy. To evaluate the performance of the proposed strategy we built a novel mixed integer programming (MIP) framework. Our results show that random power assignment performs better than maximum power assignment in terms of network lifetime.","PeriodicalId":354340,"journal":{"name":"2014 IEEE Globecom Workshops (GC Wkshps)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128592765","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

Secured communications-zone multiple input multiple output visible light communications 安全通信-区域多输入多输出可见光通信

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063482

H. L. Minh, A. Pham, Zabih Ghassemlooy, A. Burton

引用次数: 28