2014 IEEE Globecom Workshops (GC Wkshps)最新文献

Performance evaluation of a SDN/OpenFlow-based Distributed Mobility Management (DMM) approach in virtualized LTE systems 虚拟化LTE系统中基于SDN/ openflow的分布式移动管理(DMM)方法的性能评估

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-08 DOI: 10.1109/GLOCOMW.2014.7063379

Luca Valtulina, M. Karimzadeh, G. Karagiannis, G. Heijenk, A. Pras

引用次数: 38

Secure key generation from OFDM subcarriers' channel responses 从OFDM子载波的信道响应生成安全密钥

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-08 DOI: 10.1109/GLOCOMW.2014.7063613

Junqing Zhang, A. Marshall, Roger Francis Woods, T. Duong

{"title":"Secure key generation from OFDM subcarriers' channel responses","authors":"Junqing Zhang, A. Marshall, Roger Francis Woods, T. Duong","doi":"10.1109/GLOCOMW.2014.7063613","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2014.7063613","url":null,"abstract":"The ability to exchange keys between users is vital in any wireless based security system. A key generation technique which exploits the randomness of the wireless channel is a promising alternative to existing key distribution techniques, e.g., public key cryptography. In this paper, a secure key generation scheme based on the subcarriers' channel responses in orthogonal frequency-division multiplexing (OFDM) systems is proposed. We first implement a time-variant multipath channel with its channel impulse response modelled as a wide sense stationary (WSS) uncorrelated scattering random process and demonstrate that each subcarrier's channel response is also a WSS random process. We then define the X% coherence time as the time required to produce an X% correlation coefficient in the autocorrelation function (ACF) of each channel tap, and find that when all the channel taps have the same Doppler power spectrum, all subcarriers' channel responses has the same ACF as the channel taps. The subcarrier's channel response is then sampled every X% coherence time and quantized into key bits. All the key sequences' randomness is tested using National Institute of Standards and Technology (NIST) statistical test suite and the results indicate that the commonly used sampling interval as 50% coherence time cannot guarantee the randomness of the key sequence.","PeriodicalId":354340,"journal":{"name":"2014 IEEE Globecom Workshops (GC Wkshps)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129635089","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: 31

Angle diversity receiver for indoor MIMO visible light communications 角度分集接收机用于室内MIMO可见光通信

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-08 DOI: 10.1109/GLOCOMW.2014.7063472

Asanka Nuwanpriya, Siu-Wai Ho, Chung Shue Chen

{"title":"Angle diversity receiver for indoor MIMO visible light communications","authors":"Asanka Nuwanpriya, Siu-Wai Ho, Chung Shue Chen","doi":"10.1109/GLOCOMW.2014.7063472","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2014.7063472","url":null,"abstract":"In indoor visible light communication systems, transmitters are usually within the line of sight of the receiver. In order to enjoy the benefits of using multiple-input-multiple-output (MIMO) system, the technique for reducing channel correlation is important. This paper proposes a MIMO system using an angle diversity receiver (ADR) to achieve high spatial multiplexing gain. In our proposed system, receiver consists of multiple photodetectors (PDs) whose normals are pointing toward different directions. As a result, the incident angles from the same light emitting diode (LED) are different for different PDs and hence, channel correlation can be reduced. The spatial separation among PDs is small and no imaging lens is required. The proposed receiver is suitable for mounting on small devices like smartphones. Performance comparisons, in terms of analytical, simulated and experimental bit error rates (BER), are carried out for a MIMO system with 4 LED transmitters and 5 PD receivers. Results show that the proposed receiver performs better than other existing non-imaging receiver designs. Our proposed MIMO system is a practically feasible solution to enjoy low channel correlation and support mobility at receiver.","PeriodicalId":354340,"journal":{"name":"2014 IEEE Globecom Workshops (GC Wkshps)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123550577","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: 29

An architecture for co-ordinated monitoring for multi-provider cloud platforms 用于协调监控多提供商云平台的架构

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063412

I. Vaishnavi, Riccardo Guerzoni, S. Beker

引用次数: 1

The development of M2M standards for ubiquitous sensing service layer 面向泛在感知业务层的M2M标准的制定

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063502

Asma Elmangoush, A. Al-Hezmi, T. Magedanz

引用次数: 14

MEGA: An energy aware algorithm for self-powered wireless sensor networks in sustainable smart infrastructure MEGA:可持续智能基础设施中自供电无线传感器网络的能量感知算法

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063592

Qi Dong, Yu Chen, Shahrzad Towfighian

引用次数: 10

Reciprocity enhancement and decorrelation schemes for PHY-based key generation 基于物理的密钥生成的互易增强和去相关方案

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063624

S. Gopinath, René Guillaume, P. Duplys, A. Czylwik

引用次数: 21

Survivable mapping for multicast virtual network under single regional failure 单区域故障下组播虚拟网络的可生存映射

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063382

D. Liao, Gang Sun, V. Anand, Kexiang Xiao

引用次数: 3

Device-centric radio access virtualization for 5G networks 面向5G网络的以设备为中心的无线接入虚拟化

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063545

A. Maaref, Jianglei Ma, M. Salem, H. Baligh, Keyvan Zarin

{"title":"Device-centric radio access virtualization for 5G networks","authors":"A. Maaref, Jianglei Ma, M. Salem, H. Baligh, Keyvan Zarin","doi":"10.1109/GLOCOMW.2014.7063545","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2014.7063545","url":null,"abstract":"In this paper, we introduce a virtualized device-centric radio access architecture for future fifth-generation (5G) mobile networks. Radio access networks (RAN)s have traditionally relied on Voronoi tessellations of cells, created by a careful deployment of access nodes, to enable spatial frequency reuse over those cells. With the trend firmly set to decouple the control- and user-planes for next-generation 5G mobile networks, we foresee radio access technology breaking away from the concept of cells and embracing a virtualized device-centric architecture. The aim for this paradigm shift is to meet the stringent quality of service (QoS) requirements of densely populated networks irrespective of users' physical proximity to the access nodes. Focusing on downlink user-plane (U-plane) virtualization, this paper proposes a device-centric hyper-transceiver (HT) design that capitalizes on group-to-group (G2G) communications between virtual multipoint transmission and reception nodes and proactively optimizes both sets of virtual nodes via dynamic point selection (DPS) enabled by cloud-RAN (CRAN) architecture and semi-static network-assisted receiver cooperation enabled by device-to-device (D2D) short-range communications, respectively. Using a full-fledged event-based system level simulator compliant with the 3rd generation partnership project (3GPP) long-term evolution advanced (LTE-Adv) specifications, our results show that the proposed virtualized U-plane architecture provides more than 50% average throughput and 200% coverage gains over LTE-A Release 11 baseline under some typical simulation scenarios.","PeriodicalId":354340,"journal":{"name":"2014 IEEE Globecom Workshops (GC Wkshps)","volume":"32 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":"114962296","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: 34

Linear receivers for optical wireless scattering communication with multiple photon detectors 带多光子探测器的无线光散射通信线性接收机

2014 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2014-12-01 DOI: 10.1109/GLOCOMW.2014.7063471

Chen Gong, Zhengyuan Xu

引用次数: 14