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2014 IEEE 11th Consumer Communications and Networking Conference (CCNC)最新文献

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Disaster-resilient mobile network architecture 弹性移动网络架构
Pub Date : 2014-07-28 DOI: 10.1109/CCNC.2014.6866564
K. Andersson, Ved P. Kafle
Conventional cellular mobile networks are likely to get disturbed easily when a natural disaster (earthquake, tsunami, flooding, etc.) hits an area because of their centralized control and high-power requirements. To address this issue, we propose a new mobile network architecture having distributed controls and ad-hoc configurations. This architecture exploits the locally available resources such as frequency spectrum and lively nodes to reconfigure the network and provide emergency services. We present its design and use cases.
当自然灾害(地震、海啸、洪水等)袭击一个地区时,传统的蜂窝移动网络很容易受到干扰,因为它们的集中控制和高功率要求。为了解决这个问题,我们提出了一种新的移动网络架构,它具有分布式控制和ad-hoc配置。该架构利用本地可用的频谱和活跃节点等资源,对网络进行重新配置,并提供应急服务。我们介绍了它的设计和用例。
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引用次数: 4
Synchronization sequence design for mmWave cellular systems 毫米波蜂窝系统的同步序列设计
Pub Date : 2014-07-28 DOI: 10.1109/CCNC.2014.6866636
S. Abu-Surra, S. Rajagopal, Xiaojie Zhang
Designing millimeter wave (mmWave) cellular system with good coverage necessitates the use of directional beams to transmit synchronization signals in the system, and with that comes several challenges. In this paper, we present a detailed synchronization channel (SCH) design for mmWave systems. We provide a link-budget study to determine the minimum required transmit and receive beamforming gains. We also present designs for the SCH pattern in the frame structure. We design SCH sequences and show that our design provides a 3 dB better performance than LTE under similar conditions. Moreover, we propose a method is based on a genetic algorithm, to efficiently synthesize the beams required to transmit SCH.
设计具有良好覆盖的毫米波(mmWave)蜂窝系统需要使用定向波束在系统中传输同步信号,这带来了一些挑战。在本文中,我们提出了毫米波系统的同步信道(SCH)的详细设计。我们提供了一个链路预算研究,以确定最小所需的发射和接收波束形成增益。我们还提出了框架结构中SCH图案的设计。我们设计了SCH序列,并证明在类似条件下,我们的设计比LTE提供了3db的性能。此外,我们还提出了一种基于遗传算法的方法来有效地合成传输SCH所需的波束。
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引用次数: 9
Multimedia-based battery drain attacks for Android devices 针对Android设备的基于多媒体的电池耗尽攻击
Pub Date : 2014-07-28 DOI: 10.1109/CCNC.2014.6866562
Ugo Fiore, F. Palmieri, Aniello Castiglione, V. Loia, A. D. Santis
People using smartphones to connect to the Internet for day-life activities has overtaken the number of people using canonical PCs. This lead to a huge quantity of security threats that usually tend to penetrate the defenses of a smartphone in order to gain control of its resources. Differently, energy-based attacks have the objective of increasing the energy consumption of the victim device. It is important to highlight that this objective could be possibly achieved by just activating the system's defenses as a consequence of canonical attacks and letting the system defenses detect and (try to) defeat them. These activities consume additional energy and could led the mobile device to its complete uselessness. In this paper, an energy-based attack based on soliciting hardware-level encoding/decoding functions through properly crafted multimedia files is analyzed and its impact evaluated. Such kind of attacks are performed without accessing the device by taking advantage of the new HTML5 functionalities. A series of experiments have been performed in order to understand which are the codecs that have a more relevant impact on energy consumption, and, as a consequence, that make the attack more effective.
使用智能手机上网进行日常活动的人数已经超过了使用普通个人电脑的人数。这导致了大量的安全威胁,通常倾向于穿透智能手机的防御,以获得对其资源的控制。不同的是,基于能量的攻击的目的是增加受害设备的能量消耗。需要强调的是,这个目标可以通过激活系统的防御来实现,作为典型攻击的结果,并让系统防御检测并(尝试)击败它们。这些活动消耗额外的能量,并可能导致移动设备完全无用。本文分析了一种利用精心制作的多媒体文件获取硬件级编/解码功能的基于能量的攻击,并对其影响进行了评估。这种攻击是在不访问设备的情况下执行的,利用了新的HTML5功能。为了了解哪些编解码器对能量消耗有更相关的影响,并且因此使攻击更有效,已经进行了一系列实验。
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引用次数: 19
Delay-bounded routing on hybrid-solar vehicular ad-hoc networks 混合太阳能汽车自组网中的延迟有界路由
Pub Date : 2014-07-28 DOI: 10.1109/CCNC.2014.6866550
Yuh-Shyan Chen, Chih-Shun Hsu, Shu-Yu Lin
Most of the researches pay attention to minimize the end-to-end delay rather than reduce the usage of radio. However, some information is not urgent and radio is a valuable and limited resource. Recently, delay-bounded routing protocol has become a popular issue, whose goal is to deliver messages to the destination within user-defined delay and minimize the usage of radio. To decrease the burden on the environment and save energy, the hybrid-solar vehicle is one of the most prominent solutions. The existing delay-bounded routing protocols do not consider the charge and the energy expenditure factors and only choose the path with the least forwarding times. To improve previous works, we propose a mechanism based on a cost function, which includes forwarding times and power gain, to choose a minimum cost path. Besides, we propose a novel mechanism to deliver message to the destination by the hybrid of data muling (carried by the vehicle) and forwarding (transmitted through radio). In the existing protocol, when the remaining time is not enough the vehicle should forward the message by radio and when the remaining time is enough the vehicle should carry the message by itself. However, forwarding message by radio consumes more energy and hence the energy factor should be added into the consideration. The proposed protocol contains two schemes: the greedy and centralized schemes. In the centralized scheme, the information such as the solar illumination, length of each road segment, and the average velocity of the vehicles on each road segment are collected and then the dynamic programming is used to find the least cost routing path. In the greedy scheme, it only has the knowledge of the average velocity, the solar illumination and the length of all the possible next road segments to choose the next road segment with the least cost. Simulation results illustrate that the proposed routing protocol can save more energy than existing protocols.
大多数研究的重点是最小化端到端延迟,而不是减少无线电的使用。然而,有些信息并不紧急,无线电是一种宝贵而有限的资源。延迟有界路由协议是近年来研究的热点问题,其目标是在用户定义的延迟内将消息传递到目的地,并最大限度地减少无线电的使用。为了减轻环境负担和节约能源,混合动力太阳能汽车是最突出的解决方案之一。现有的延迟有界路由协议不考虑费用和能量消耗因素,只选择转发次数最少的路径。为了改进以前的工作,我们提出了一种基于成本函数的机制,其中包括转发时间和功率增益,以选择最小成本路径。此外,我们提出了一种新的机制,通过数据骡子(由车辆携带)和转发(通过无线电传输)的混合方式将消息传递到目的地。在现有协议中,当剩余时间不足时,车辆应通过无线电转发消息,当剩余时间足够时,车辆应自行携带消息。然而,通过无线电转发消息消耗更多的能量,因此应该考虑能量因素。提出的协议包含两种方案:贪心方案和中心化方案。在集中式方案中,收集太阳能照度、每条道路的长度、每条道路上车辆的平均速度等信息,然后采用动态规划方法寻找成本最小的路径。在贪心方案中,它只知道平均速度、太阳照度和所有可能的下一路段的长度,从而选择成本最小的下一路段。仿真结果表明,所提出的路由协议比现有的路由协议更节能。
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引用次数: 0
Self-interference mitigation for in-band mmWave wireless backhaul 带内毫米波无线回程的自干扰抑制
Pub Date : 2014-07-28 DOI: 10.1109/CCNC.2014.6866625
S. Rajagopal, R. Taori, S. Abu-Surra
Next generation wireless backhaul systems may provide data rates exceeding 10 Gb/s using large bandwidth available at mmWave frequencies, and support features such as point-to-multipoint communication, non-line-of-sight communication, in-band operation (shared spectrum with access) and inter-BS coordination. We explore the feasibility of an “in-band” mmWave wireless base-station with the option of enabling backhaul transmission on one panel while simultaneously receiving access or backhaul on an adjacent panel. We show using simulations and lab measurement validation, that for a prototype 28 GHz mmWave system, the self-interference from the TX sector panel to the adjacent RX panel is around -70 to -80 dB and an additional 35-50 dB isolation is needed for enabling reception on adjacent RX panel that may be achieved through full duplex interference cancellation techniques.
下一代无线回程系统可以使用毫米波频率的大带宽提供超过10gb /s的数据速率,并支持点对多点通信、非视距通信、带内操作(与接入共享频谱)和bs间协调等功能。我们探索了“带内”毫米波无线基站的可行性,该基站可选择在一个面板上进行回程传输,同时在相邻面板上接收访问或回程。我们通过模拟和实验室测量验证表明,对于一个28 GHz毫米波原型系统,从TX扇区面板到相邻RX面板的自干扰约为-70至-80 dB,需要额外的35-50 dB隔离,以便通过全双工干扰消除技术实现相邻RX面板的接收。
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引用次数: 34
Distributed PDN gateway support for scalable LTE/EPC networks 分布式PDN网关支持可扩展的LTE/EPC网络
Pub Date : 2014-07-28 DOI: 10.1109/CCNC.2014.6866561
Yong-hwan Kim, Youn-Hee Han, Min Kim, Y. Park, S. Moon, Jin Ho Lee, Dae-Kyu Choi
Recently, due to a explosive growth in the mobile Internet traffic, the problem of excessive data traffic handling on core network and thus scalability problem have been magnified in 3GPP Long Term Evolution/System Architecture Evolution (LTE/SAE) networks. Current LTE/SAE network based on the central packet data network gateway (P-GW) used as mobility anchor cannot deal with such problems. In this paper, we propose a new LTE/SAE network architecture supporting distributed P-GWs and the corresponding distributed mobility management to solve the problems. For this, in addition to the deployment of such distributed P-GWs, we propose a dynamic and distributed mobility management by distributing MMEs (Mobility Management Entities) which dynamically manages the location information of an UEs PDN connection, and also propose a handover procedure of such PDN connections by using the proposed distributed P-GWs and MMEs. The performance of the proposed distributed LTE/SAE network system is compared with the conventional LTE/SAE network system in terms of the P-GW's data processing volume per unit time and the number of valid data sessions accommodated in the LTE/EPC core network.
近年来,由于移动互联网流量的爆炸式增长,在3GPP长期演进/系统架构演进(LTE/SAE)网络中,核心网数据流量处理过多的问题以及由此带来的可扩展性问题被放大。目前基于中心分组数据网络网关(P-GW)作为移动锚点的LTE/SAE网络无法解决这些问题。本文提出了一种支持分布式P-GWs的LTE/SAE网络架构和相应的分布式移动性管理来解决这些问题。为此,除了部署这种分布式P-GWs之外,我们还提出了一种动态和分布式的移动性管理,通过分布式mme(移动性管理实体)来动态管理ue PDN连接的位置信息。并利用所提出的分布式P-GW和mme提出了PDN连接的切换流程。从单位时间内P-GW的数据处理量和LTE/EPC核心网的有效数据会话数两方面比较了所提出的分布式LTE/SAE网络系统与传统LTE/SAE网络系统的性能。
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引用次数: 4
Low complexity cloud-video-mixing using HEVC 使用HEVC的低复杂性云视频混合
Pub Date : 2014-07-28 DOI: 10.1109/CCNC.2014.6866573
Yago Sánchez de la Fuente, R. Globisch, T. Schierl, T. Wiegand
Real-time video applications, such as video conferencing and video surveillance systems, typically involve the simultaneous transport of multiple video sources to interested parties that consume the content. It may be desirable to mix these multiple source videos into a single video stream at intermediary nodes in the network. This has the advantage of reduced application and transport complexity on the client device and also makes it possible for devices with a single hardware decoder to consume the content. A typical approach is to apply transcoding operations to the original videos, i.e. the videos are decoded, merged and encoded into a single video stream. This paper proposes an alternative solution to video transcoding, which uses the new video coding standard HEVC and has a much lower processing complexity. We consider how our approach can be realized in real-world applications such as a cloud video mixer. Such systems typically require some degree of dynamics and personalization and we provide some insight into how transport signaling complexities can be addressed.
实时视频应用,如视频会议和视频监控系统,通常涉及将多个视频源同时传输到使用内容的相关方。在网络的中间节点将这些多源视频混合成单个视频流可能是可取的。这样做的优点是降低了客户端设备上的应用程序和传输复杂性,并且还使具有单个硬件解码器的设备能够使用内容。一种典型的方法是对原始视频进行转码操作,即对视频进行解码、合并和编码成单个视频流。本文提出了一种视频转码的替代方案,该方案采用新的视频编码标准HEVC,处理复杂度大大降低。我们考虑如何在诸如云视频混频器之类的实际应用中实现我们的方法。这样的系统通常需要一定程度的动态和个性化,我们提供了一些关于如何解决传输信号复杂性的见解。
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引用次数: 19
DSP-based implementation of soft Viterbi decoder for power line communications 基于dsp的电力线通信软维特比解码器的实现
Pub Date : 2014-07-28 DOI: 10.1109/CCNC.2014.6866549
Mohamed Chaker Bali, C. Rebai
When using power line communications (PLC) modems for Smart Grids (SG), achieving fast and reliable data transmission is one of the key issues. This paper investigate a soft Viterbi decoder to reduce errors effects of noises and attenuations in Spread Frequency Shift Keying (S-FSK) communication scheme. Through numerical simulations, the improvements of the proposed Viterbi decoder are shown in terms of BER performance. Furthermore, practical realization on low-cost embedded processor is discussed. The whole design of a narrowband S-FSK based PLC modem has been implemented and optimization for real time processing.
在智能电网(SG)中使用电力线通信(PLC)调制解调器时,实现快速可靠的数据传输是关键问题之一。本文研究了一种软维特比解码器,以降低扩频频移键控(S-FSK)通信中噪声和衰减的误差影响。通过数值仿真,证明了所提出的维特比解码器在误码率性能方面的改进。并讨论了在低成本嵌入式处理器上的实际实现。实现了基于S-FSK的窄带PLC调制解调器的整体设计,并对其进行了实时处理优化。
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引用次数: 1
Bring your own device security issues and challenges 带上你自己的设备安全问题和挑战
Pub Date : 2014-07-28 DOI: 10.1109/CCNC.2014.6866552
Y. Wang, Jinpeng Wei, Karthik Vangury
As mobile devices become prevalent in workplaces, it also creates a unique environment, Bring Your Own Device, in enterprise networks. BYODs are extensions of corporate networks and thus it is essential to secure BYODs to protect enterprise networks. Security tools such as firewalls, anti-virus software, and anti-spam software have been widely used to protect corporate networks. Similar tools are also desired to protect BYODs. BYODs have many advantages, such as reducing companies' cost and increasing users' productivity. However, they also raise many security issues and challenges due to their unique security requirements. This paper summarizes threats and attacks on BYODs and reveals their security issues and challenges. The paper further compares existing BYOD solutions and presents a BYOD security framework that provides guidance for enterprises when adopting BYODs.
随着移动设备在工作场所的普及,它也在企业网络中创造了一个独特的环境——Bring Your Own Device。byod设备是企业网络的延伸,因此保护byod设备对保护企业网络至关重要。防火墙、杀毒软件、反垃圾邮件软件等安全工具被广泛用于保护企业网络。也需要类似的工具来保护byod。自带设备有很多优点,比如降低公司成本,提高用户生产力。然而,由于其独特的安全需求,也带来了许多安全问题和挑战。本文总结了对自带设备的威胁和攻击,揭示了其安全问题和挑战。本文进一步比较了现有的BYOD解决方案,并提出了一个BYOD安全框架,为企业采用BYOD提供指导。
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引用次数: 71
A spatial optimization based adaptive coverage model for green self-organizing networks 基于空间优化的绿色自组织网络自适应覆盖模型
Pub Date : 2014-07-28 DOI: 10.1109/CCNC.2014.6866616
Gokhan Secinti, B. Canberk
The deployment of Self-Organizing Networks (SONs) based architectures has emerged as one of the key points in the 3GPP LTE-Advanced Standard, which aims to embed auto-management skills into the next generation mobile networks. However, the high traffic demands and the increased number of nomadic users have led dense eNodeB coverage, thus challenging the SON management in terms of energy efficiency. Considering these crucial SON challenges, we propose a novel adaptive network coverage model for energy-efficient SONs using a special spatial optimization method. This novel method is based on the Voronoi diagram optimization to provide the minimum number of active eNodeBs for high energy saving. The proposed model mathematically analyzes all the operating eNodeBs deployed in a specific SON area in terms of the utilization, by identifying them by a two-parameter function. These are the spatial coordinates and the utilization of the eNodeB. This eNodeB-specific mathematical model leads to find the redundant eNodeBs with less utilization, deactivate them and rearrange the coverage area with the remaining active eNodeBs using the Voronoi specific optimization. This optimization is solved by a novel heuristic with the aid of a parameter called assignment factor, in order to maximize the utilization for the remaining active eNodeBs in the green SON architecture. This spatial optimization based algorithm aims to adaptively deploy energy-effective cell coverage. The thorough evaluation results prove the generic energy-efficiency of the proposed adaptive coverage algorithm while maintaining the ENodeB utilization above the satisfying QoS levels.
基于自组织网络(SONs)架构的部署已经成为3GPP lte高级标准的关键点之一,该标准旨在将自动管理技能嵌入下一代移动网络。然而,高流量需求和游牧用户数量的增加导致eNodeB覆盖密集,因此在能源效率方面对SON管理提出了挑战。考虑到这些关键的SON挑战,我们提出了一种基于特殊空间优化方法的节能SON自适应网络覆盖模型。该方法基于Voronoi图优化,提供最小数量的有源enodeb,从而实现高能效。提出的模型通过使用双参数函数来识别特定SON区域中部署的所有运行的enodeb,从而从利用率方面对其进行数学分析。这些是空间坐标和eNodeB的使用。这个特定于enodeb的数学模型可以找到利用率较低的冗余enodeb,停用它们,并使用Voronoi特定优化与剩余的活动enodeb重新排列覆盖区域。为了最大限度地利用绿色SON体系结构中剩余的活动enodeb,在称为分配因子的参数的帮助下,通过一种新颖的启发式方法来解决此优化问题。这种基于空间优化的算法旨在自适应部署能量有效的蜂窝覆盖。全面的评估结果证明了所提出的自适应覆盖算法在保持ENodeB利用率高于令人满意的QoS水平的同时具有一般的能效。
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引用次数: 2
期刊
2014 IEEE 11th Consumer Communications and Networking Conference (CCNC)
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