2016 IEEE Global Communications Conference (GLOBECOM)最新文献

Non-Orthogonal Unicast and Broadcast Transmission via Joint Beamforming and LDM in Cellular Networks 蜂窝网络中联合波束形成和LDM的非正交单播和广播传输

2016 IEEE Global Communications Conference (GLOBECOM) Pub Date : 2019-04-03 DOI: 10.1109/GLOCOM.2016.7842028

Junlin Zhao, O. Simeone, Deniz Gündüz, D. Gómez-Barquero

{"title":"Non-Orthogonal Unicast and Broadcast Transmission via Joint Beamforming and LDM in Cellular Networks","authors":"Junlin Zhao, O. Simeone, Deniz Gündüz, D. Gómez-Barquero","doi":"10.1109/GLOCOM.2016.7842028","DOIUrl":"https://doi.org/10.1109/GLOCOM.2016.7842028","url":null,"abstract":"Abstract-Research efforts to incorporate multicast and broadcast transmission into the cellular network architecture are gaining momentum, particularly for multimedia streaming applications. Layered division multiplexing (LDM), a form of nonorthogonal multiple access (NOMA), can potentially improve unicast throughput and broadcast coverage with respect to traditional orthogonal frequency division multiplexing (FDM) or time division multiplexing (TDM), by simultaneously using the same frequency and time resources for multiple unicast or broadcast transmissions. In this paper, the performance of LDM-based unicast and broadcast transmission in a cellular network is studied by assuming a single frequency network (SFN) operation for the broadcast layer, while allowing for arbitrarily clustered cooperation for the transmission of unicast data streams. Beamforming and power allocation between unicast and broadcast layers, and hence the so-called injection level in the LDM literature, are optimized with the aim of minimizing the sum-power under constraints on the user-specific unicast rates and on the common broadcast rate. The problem is tackled by means of successive convex approximation (SCA) techniques, as well as through the calculation of performance upper bounds by means of semidefinite relaxation (SDR). Numerical results are provided to compare the orthogonal and non-orthogonal multiplexing of broadcast and unicast traffic.","PeriodicalId":425019,"journal":{"name":"2016 IEEE Global Communications Conference (GLOBECOM)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130666281","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

The Privacy Exposure Problem in Mobile Location-Based Services 移动位置服务中的隐私暴露问题

2016 IEEE Global Communications Conference (GLOBECOM) Pub Date : 2018-08-02 DOI: 10.1109/GLOCOM.2016.7842319

Fang-jing Wu, Matthias R. Brust, Yan-Ann Chen, Tie Luo

{"title":"The Privacy Exposure Problem in Mobile Location-Based Services","authors":"Fang-jing Wu, Matthias R. Brust, Yan-Ann Chen, Tie Luo","doi":"10.1109/GLOCOM.2016.7842319","DOIUrl":"https://doi.org/10.1109/GLOCOM.2016.7842319","url":null,"abstract":"Mobile location-based services (LBSs) empowered by mobile crowdsourcing provide users with context- aware intelligent services based on user locations. As smartphones are capable of collecting and disseminating massive user location-embedded sensing information, privacy preservation for mobile users has become a crucial issue. This paper proposes a metric called privacy exposure to quantify the notion of privacy, which is subjective and qualitative in nature, in order to support mobile LBSs to evaluate the effectiveness of privacy-preserving solutions. This metric incorporates activity coverage and activity uniformity to address two primary privacy threats, namely activity hotspot disclosure and activity transition disclosure. In addition, we propose an algorithm to minimize privacy exposure for mobile LBSs. We evaluate the proposed metric and the privacy-preserving sensing algorithm via extensive simulations. Moreover, we have also implemented the algorithm in an Android-based mobile system and conducted real-world experiments. Both our simulations and experimental results demonstrate that (1) the proposed metric can properly quantify the privacy exposure level of human activities in the spatial domain and (2) the proposed algorithm can effectively cloak users' activity hotspots and transitions at both high and low user-mobility levels.","PeriodicalId":425019,"journal":{"name":"2016 IEEE Global Communications Conference (GLOBECOM)","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131422345","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: 13

Transmission Schemes for Multiple Antenna Terminals in Real Massive MIMO Systems 实际大规模MIMO系统中多天线终端的传输方案

2016 IEEE Global Communications Conference (GLOBECOM) Pub Date : 2016-12-13 DOI: 10.1109/GLOCOM.2016.7842355

Erik L. Bengtsson, P. Karlsson, F. Tufvesson, Joao Vieira, Steffen Malkowsky, Liang Liu, F. Rusek, O. Edfors

引用次数: 15

Feature Engineering and Supervised Learning Classifiers for Respiratory Artefact Removal in Lung Function Tests 特征工程和监督学习分类器在肺功能测试中去除呼吸伪影

2016 IEEE Global Communications Conference (GLOBECOM) Pub Date : 2016-12-09 DOI: 10.1109/GLOCOM.2016.7841839

T. Pham, Diep N. Nguyen, E. Dutkiewicz, A. McEwan, C. Thamrin, P. Robinson, P. Leong

{"title":"Feature Engineering and Supervised Learning Classifiers for Respiratory Artefact Removal in Lung Function Tests","authors":"T. Pham, Diep N. Nguyen, E. Dutkiewicz, A. McEwan, C. Thamrin, P. Robinson, P. Leong","doi":"10.1109/GLOCOM.2016.7841839","DOIUrl":"https://doi.org/10.1109/GLOCOM.2016.7841839","url":null,"abstract":"A critical task in forced oscillation technique (FOT), a promising lung function test, is to remove respiratory artefacts. Manual removal by specialists is widely used but time- consuming and subjective. Most existing automated techniques have involved simple thresholding methods in an unsupervised manner. Breath cycles can be classified by a binary classification model (classes: artefactual and accepted). While attempting to use off-the-shelf sorting algorithms (e.g., one-class support vector machine, knearest neighbours, and adaptive boosting ensemble), we noticed their poor detection performance. This may result from the dependence of samples as found in physiological studies of the lung function that challenges the learning process. Specifically, statistics of breaths that we recorded may change from one to another patient and even within the same recording of a patient. We introduce an additional feature engineering step that is an intermediate module to decorrelate samples, called feature learning (using Wilcoxon signed rank tests). To that end, we collected FOT recordings from various groups of patients (paediatric and adult including healthy and asthmatics). Artefacts in this work were recorded naturally and processed in a complete-breath approach. Performance metrics include evaluations on preservation of \"accepted\" breaths in the filtered output (including F1- score, throughput, and approval rate). Our experiment found that our feature engineering steps significantly improve the artefact removal performance of all implemented classifiers especially with feature inputs selected by mutual information criterion.","PeriodicalId":425019,"journal":{"name":"2016 IEEE Global Communications Conference (GLOBECOM)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126219003","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

Robust Optimization with Probabilistic Constraints for Power-Efficient and Secure SWIPT 基于概率约束的高效安全SWIPT鲁棒优化

2016 IEEE Global Communications Conference (GLOBECOM) Pub Date : 2016-12-08 DOI: 10.1109/GLOCOM.2016.7842232

T. Le, Quoc-Tuan Vien, H. Nguyen, D. W. K. Ng, R. Schober

引用次数: 6

Optimum Design Parameters for Ultra-Low-Power RF Transceivers in Wireless Sensor Networks 无线传感器网络中超低功耗射频收发器的优化设计参数

2016 IEEE Global Communications Conference (GLOBECOM) Pub Date : 2016-12-06 DOI: 10.1109/GLOCOM.2016.7842112

Mhd. Zaher Mahfouz, A. Meijerink, M. Bentum

{"title":"Optimum Design Parameters for Ultra-Low-Power RF Transceivers in Wireless Sensor Networks","authors":"Mhd. Zaher Mahfouz, A. Meijerink, M. Bentum","doi":"10.1109/GLOCOM.2016.7842112","DOIUrl":"https://doi.org/10.1109/GLOCOM.2016.7842112","url":null,"abstract":"In wireless sensor networks, the need for ultra- low power consuming nodes is one of the main motivations for research in such field. Because radio sections in sensor nodes contribute to a large extent to the overall power consumption, the focus of this study is on the RF transceiver. The aim is to reduce the average power consumption which depends significantly on the circuit architecture design, operating data rate, and duty cycle. In a symmetric communicating system, due to the tradeoff between transmitting power and receiver sensitivity on one hand, as well as between phase noise tolerance and power dissipation in local oscillators on the other hand, the design and operating parameters of the transceiver need to be determined from the perspective of the average power consumption. Therefore, in our study, as an initial step in system design, the optimum for instantaneous data rate, noise figure, and oscillator power budget are analytically determined. The analysis is carried out, taking into consideration an existing in-channel wideband interference, on two transceiver architectures: RF envelope detection and conventional heterodyne. The transceiver in both architectures employs on-off-keying modulation and duty cycling. The optimums are then calculated numerically based on design constants obtained from a frequently-cited RF envelope transceiver, indicating that an energy efficiency improvement of up to 5 dB can still be achieved.","PeriodicalId":425019,"journal":{"name":"2016 IEEE Global Communications Conference (GLOBECOM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131488498","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

How to Detect Cyber-Attacks in Unmanned Aerial Vehicles Network? 如何检测无人机网络中的网络攻击?

2016 IEEE Global Communications Conference (GLOBECOM) Pub Date : 2016-12-04 DOI: 10.1109/GLOCOM.2016.7841878

Hichem Sedjelmaci, S. Senouci, M. Messous

引用次数: 39

Energy Efficiency Analysis of Heterogeneous Cache-Enabled 5G Hyper Cellular Networks 异构缓存支持的5G超蜂窝网络能效分析

2016 IEEE Global Communications Conference (GLOBECOM) Pub Date : 2016-12-04 DOI: 10.1109/GLOCOM.2016.7841790

Jiaxin Zhang, Xing Zhang, M. Imran, B. Evans, Wenbo Wang

{"title":"Energy Efficiency Analysis of Heterogeneous Cache-Enabled 5G Hyper Cellular Networks","authors":"Jiaxin Zhang, Xing Zhang, M. Imran, B. Evans, Wenbo Wang","doi":"10.1109/GLOCOM.2016.7841790","DOIUrl":"https://doi.org/10.1109/GLOCOM.2016.7841790","url":null,"abstract":"The emerging 5G wireless networks will pose extreme requirements such as high throughput and low latency. Caching as a promising technology can effectively decrease latency and provide customized services based on group users behaviour (GUB). In this paper, we carry out the energy efficiency analysis in the cache-enabled hyper cellular networks (HCNs), where the macro cells and small cells (SCs) are deployed heterogeneously with the control and user plane (C/U) split. Benefiting from the assistance of macro cells, a novel access scheme is proposed according to both user interest and fairness of service, where the SCs can turn into semi- sleep mode. Expressions of coverage probability, throughput and energy efficiency (EE) are derived analytically as the functions of key parameters, including the cache ability, search radius and backhaul limitation. Numerical results show that the proposed scheme in HCNs can increase the network coverage probability by more than 200% compared with the single- tier networks. The network EE can be improved by 54% than the nearest access scheme, with larger research radius and higher SC cache capacity under lower traffic load. Our performance study provides insights into the efficient use of cache in the 5G software defined networking (SDN).","PeriodicalId":425019,"journal":{"name":"2016 IEEE Global Communications Conference (GLOBECOM)","volume":"10 22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128521003","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: 16

Provisioning Statistical QoS for Coordinated Communications with Limited Feedback 有限反馈协调通信的统计QoS配置

2016 IEEE Global Communications Conference (GLOBECOM) Pub Date : 2016-12-04 DOI: 10.1109/GLOCOM.2016.7842179

M. Khoshkholgh, K. Navaie, K. Shin, Victor C. M. Leung

{"title":"Provisioning Statistical QoS for Coordinated Communications with Limited Feedback","authors":"M. Khoshkholgh, K. Navaie, K. Shin, Victor C. M. Leung","doi":"10.1109/GLOCOM.2016.7842179","DOIUrl":"https://doi.org/10.1109/GLOCOM.2016.7842179","url":null,"abstract":"The capacity performance of ICIC has been extensively studied in coordinated multi-point transmissions (CoMP). In practice however, due to limited feedback, the acquired channel direction information (CDI), which is crucial for ICIC, is often partially available. Hence one may question whether the ICIC is able to meet the Quality-of- Service (QoS) requirements. This paper considers the optimal partitioning of the feedback bits in CoMP while accounting for the inter-cell interference cancellation (ICIC). In this paper, we adopt a statistical model of QoS in CoMP by using the notion of effective capacity (EC). Utilizing EC we then formulate the system function as an optimization problem with the objective of maximizing the total EC subject to the limited feedback available to the cluster of base stations (BSs). Analytical approximations are then obtained on the EC performance which are then utilized as the base for algorithms that assign feedback bits among the user equipments (UEs) and BSs. Using simulations we then investigate the accuracy of the obtained approximations and highlight practical system designs for dealing with stringent delay requirements. Of crucial practical importance, the findings of this paper also indicates that in CoMP there is an optimal cluster size for a given feedback capacity that maximizes the corresponding EC.","PeriodicalId":425019,"journal":{"name":"2016 IEEE Global Communications Conference (GLOBECOM)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128536601","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

Repetitive Pulse Width Modulation Based Single-RF MIMO System with Compact 4-Port Antenna 基于重复脉宽调制的单射频MIMO系统与紧凑型4端口天线

2016 IEEE Global Communications Conference (GLOBECOM) Pub Date : 2016-12-04 DOI: 10.1109/GLOCOM.2016.7842216

Daehee Park, D. Cho

引用次数: 0