2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)最新文献_第5页

Visualization and Manipulation of Terahertz Light in the Near-Field 近场太赫兹光的可视化和操作

2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB) Pub Date : 2015-11-12 DOI: 10.1109/ICUWB.2015.7324528

F. Blanchard, Tomoki Hiraoka, T. Arikawa, Koichiro Tanaka, S. Tani, Tomoko Tanaka

{"title":"Visualization and Manipulation of Terahertz Light in the Near-Field","authors":"F. Blanchard, Tomoki Hiraoka, T. Arikawa, Koichiro Tanaka, S. Tani, Tomoko Tanaka","doi":"10.1109/ICUWB.2015.7324528","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324528","url":null,"abstract":"Plasmonics is part of the fascinating field of nanophotonics, which explores how electromagnetic fields can be confined over dimensions smaller than the wavelength. Given that THz waves may be generated and detected using ultra-short laser pulses, i.e. femtosecond (fs) laser, coherent time-domain THz measurement enable direct reading of the amplitude and phase information of the electric field. Combined with this capability, exploring the electromagnetic interactions of THz waves below diffraction limit is a powerful tool to understand the plasmonic nature of light at the metal/insulator interface. Here, we summarize on the recent advances in THz microscopy based on 2-dimensional electro optic (EO) imaging using an intense THz pulse source. These recent achievements in optimizing the spatial resolution and acquisition time will drastically accelerate our comprehension of the subwavelength light-matter interactions at THz frequencies and enable, among others, new sensing applications. Our discussion will include demonstrations on field enhancement in metallic-based resonators and potential avenues using THz vortex beam.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128584746","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

Fair Load Balancing in Heterogeneous Cellular Networks 异构蜂窝网络中的公平负载均衡

2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB) Pub Date : 2015-11-12 DOI: 10.1109/ICUWB.2015.7324453

Edenalisoa Rakotomanana, F. Gagnon

引用次数: 6

Power-Saving Scheme for PON LTE-A Converged Networks Supporting M2M Communications 支持M2M通信的PON LTE-A融合网络节能方案

2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB) Pub Date : 2015-11-12 DOI: 10.1109/ICUWB.2015.7324500

D. P. Van, B. Rimal, M. Maier

{"title":"Power-Saving Scheme for PON LTE-A Converged Networks Supporting M2M Communications","authors":"D. P. Van, B. Rimal, M. Maier","doi":"10.1109/ICUWB.2015.7324500","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324500","url":null,"abstract":"To cope with the unprecedented growth of Machineto-Machine (M2M) services over cellular networks, this paper envisions an energy-efficient PON LTE-A converged network that combines the high capacity and reliability of PON technology with the flexibility and cost savings of LTE-A network to support M2M applications. In particular, this paper proposes a powersaving scheme that unifies the cyclic sleep mechanism defined for PON's optical network units (ONUs) and the discontinuous reception (DRX) mechanism defined for LTE's user equipments (UEs) to reduce the overall power consumption in the envisioned network. For performance evaluation, a comprehensive energy saving model and an end-to-end packet delay analysis for M2M scenarios are presented taking into account both optical backhaul and wireless front-end networks based on an M/G/1 queueing model (for backhaul) and a semi-Markov process (for frontend). Results show that the battery life of M2M devices can be significantly prolonged by extending DRX cycle, while the energy consumption of the optical backhaul network can be minimized by exploiting TDMA scheduling for ONU cyclic sleep implementation. Further, the trade-off between overall energy saving and end-to-end packet delay is studied to specify maximum achievable energy saving while not violating delay constraints.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122033117","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: 5

Energy-Efficient Robust Resource Provisioning in Virtualized Wireless Networks 虚拟化无线网络的节能鲁棒资源分配

2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB) Pub Date : 2015-11-12 DOI: 10.1109/ICUWB.2015.7324447

Vikas Jumba, S. Parsaeefard, Mahsa Derakhshani, T. Le-Ngoc

{"title":"Energy-Efficient Robust Resource Provisioning in Virtualized Wireless Networks","authors":"Vikas Jumba, S. Parsaeefard, Mahsa Derakhshani, T. Le-Ngoc","doi":"10.1109/ICUWB.2015.7324447","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324447","url":null,"abstract":"This paper proposes a robust resource allocation approach in virtualized wireless networks (VWNs) to address the uncertainty in channel state information (CSI) at the base station (BS) due to estimation error and mobility of users. In this set-up, the resources of an OFDMA-based wireless network are shared among different slices where the minimum reserved rate is considered as the quality-of-service (QoS) requirement of each slice. We formulate the robust resource allocation problem against the worst-case CSI uncertainty, aiming to maximize the overall energy efficiency (EE) of VWN in terms of a newly defined slice utility function. Uncertain CSI is modeled as the sum of its true estimated value and an error assumed to be bounded in a specific uncertainty region. The formulated problem suffers from two major issues: computational complexity and energy-efficiency degradation due to the considered error in the maximum extent. To deal with these issues, we consider a specific form of uncertainty region to solve the robust resource allocation problem via an iterative algorithm. The simulation results demonstrate the effectiveness of the proposed algorithms.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122110853","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: 10

Distributed Implementation of Collaborative Beamforming in Highly-Scattered Environments 高度分散环境下协同波束形成的分布式实现

2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB) Pub Date : 2015-11-12 DOI: 10.1109/ICUWB.2015.7324439

S. Zaidi, Bouthaina Hmidet, S. Affes

引用次数: 1

A New Antenna with Dual Band-Notched Function by Shorting Pin and S-Shaped Coupling Element 一种采用短引脚和s型耦合元件的双带陷波天线

2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB) Pub Date : 2015-11-12 DOI: 10.1109/ICUWB.2015.7324406

M. Akbari, R. Movahedinia, A. Sebak, S. Zarbakhsh, N. Rojhani, V. Devabhaktuni

引用次数: 0

A Dual-Hop Backhaul Network Architecture for 5G Ultra-Small Cells Using Millimetre-Wave 基于毫米波的5G超小型蜂窝双跳回传网络架构

2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB) Pub Date : 2015-11-12 DOI: 10.1109/ICUWB.2015.7324401

Aftab Ahmed, D. Grace

引用次数: 8

Back Radiation Suppression for Substrate Integrated H-Plane Horn Antenna 基板集成h面喇叭天线的背辐射抑制

2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB) Pub Date : 2015-11-12 DOI: 10.1109/ICUWB.2015.7324422

Nima Bayat-Makou, A. Kishk

引用次数: 3

Improvement of L1 Signaling Performance for DVB-T2 Using Optimized Two-Dimensional Non-Uniform Constellations 利用优化的二维非均匀星座改进DVB-T2 L1信令性能

2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB) Pub Date : 2015-11-12 DOI: 10.1109/ICUWB.2015.7324462

Carlos Barjau, D. Ansorregui, B. Mouhouche, Hongsil Jeong, Hakju Lee

引用次数: 2

3-Dimensional Image Expansion Method by Incorporating RPM Imaging and Full Polarimetric Data for UWB Short Range Radar 结合转速成像和全极化数据的超宽带近程雷达三维图像展开方法

2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB) Pub Date : 2015-11-12 DOI: 10.1109/ICUWB.2015.7324390

Ayumi Yamaryo, S. Kidera, T. Kirimoto

{"title":"3-Dimensional Image Expansion Method by Incorporating RPM Imaging and Full Polarimetric Data for UWB Short Range Radar","authors":"Ayumi Yamaryo, S. Kidera, T. Kirimoto","doi":"10.1109/ICUWB.2015.7324390","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324390","url":null,"abstract":"Ultra wideband (UWB) radar with high range resolution is promising for short-range 3-dimensional (3-D) imaging applications, such as a sensor for rescue robot in disaster scene. We have already proposed the efficient 3-D imaging methods as range point migration (RPM) method, which has a definitive advantage for SAR or time-reversal approaches, in terms of computational burden, high accuracy and high spatial resolution. However, if the aperture size is insufficient, this method cannot image the whole target structure. Conversely, useful information about the target structure can be extracted from the full polarimetric data. Therefore, this paper proposes a novel method that expands reconstructed RPM images by exploiting the full polarimetric data. This method introduces the ellipsoid-based scattering analysis and estimation, and significantly expands the original image by the RPM method by an aggregation of parts of ellipsoids. The results of numerical simulation based on 3-D finite difference time domain (FDTD) analysis verify the effectiveness of our proposed method.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121866732","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