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2017 International Symposium on Wireless Systems and Networks (ISWSN)最新文献

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Performance evaluation of modern broadwell architecture of a parallel & distributed microprocessor 并行分布式微处理器现代broadwell架构的性能评价
Pub Date : 2017-11-01 DOI: 10.1109/ISWSN.2017.8250026
Kanwal Saeed, G. Raja
In this paper, we have discussed an overview of the modern architectures which were introduced recently and broadly used nowadays. We have evaluated the overall performance of a modern Broadwell architecture using a distributed and shared memory system. The performance has been tested based on the speedup gained after running the parallelized form of the various sequential programs. The analysis has been performed using the benchmark programs of an open source Parmibench suite. The speedups obtained by the parallel distribution of the processor cores compared to the sequential distribution have been observed. The key simulation prospects and features which need to be enhanced in the future products of the low power microprocessor family have been identified. Simulation results show that the low clock frequency processors provide both efficient processing capabilities along with reduced power consumption, after we compared them with a high clock frequency microprocessor.
在本文中,我们讨论了现代架构的概述,这是最近被介绍和广泛使用的今天。我们使用分布式和共享内存系统评估了现代Broadwell架构的整体性能。基于运行各种顺序程序的并行化形式所获得的加速,对性能进行了测试。分析是使用开源Parmibench套件的基准程序执行的。已经观察到处理器内核的并行分布与顺序分布相比所获得的速度提升。指出了未来低功耗微处理器系列产品的关键仿真前景和需要加强的特点。仿真结果表明,与高时钟频率处理器相比,低时钟频率处理器既具有高效的处理能力,又具有较低的功耗。
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引用次数: 0
A wavelet-based protection scheme for smart grids 一种基于小波的智能电网保护方案
Pub Date : 2017-11-01 DOI: 10.1109/ISWSN.2017.8250036
Umar Maqbool, U. A. Khan
Transformation of traditional electrical power networks into a Smartgrid has provided numerous ways to integrate clean and sustainable energy resources in the electrical grid. Effective management of Distributed Energy Resources (DERs) becomes a formidable task with their increasing penetration at the distribution level. One of the technical challenges associated with the implementation of smartgrids is an effective protection strategy for grid connected and island mode. In this paper, we have proposed a wavelet based protection scheme for microgrids which is able to detect faults in gird connected and island mode of operation. The proposed protection scheme is independent of the variations in fault current magnitude. A microgrid model, consisting of renewable energy based DERs is simulated using MATLAB/Simulink to verify the effectiveness of the proposed wavelet based scheme.
传统电网向智能电网的转变为在电网中整合清洁和可持续能源提供了多种途径。随着分布式能源在配电网层面的日益普及,对其进行有效管理已成为一项艰巨的任务。智能电网的实施面临的技术挑战之一是对并网和孤岛模式的有效保护策略。本文提出了一种基于小波的并网孤岛运行故障检测微电网保护方案。该保护方案不受故障电流大小变化的影响。利用MATLAB/Simulink仿真了基于可再生能源的der组成的微电网模型,验证了基于小波变换的方案的有效性。
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引用次数: 1
Impact of fading on per-energy capacity in femto-macro environment 飞宏环境下衰落对能量容量的影响
Pub Date : 2017-11-01 DOI: 10.1109/ISWSN.2017.8250027
A. Sheikh, M. Khalifa, A. Zerguine
Energy efficiency (EE) metric compares performances of wireless communication systems. Per-energy capacity ratio is an energy efficiency (EE) metric. In this paper, it is used to compare the performances of wireless systems in macro-femto environment due to fading. The degradation in the per-energy capacity ratio due to fading is evaluated. The results show that deployment of the femtocells along with macrocells is energy efficient under non-fading and fading conditions. In addition, the degradation in the per-energy capacity is found to be a function of fading ratio in the chosen system, hence pointing to the importance of channel fading type.
能源效率(EE)指标比较无线通信系统的性能。每能量容量比是一种能源效率(EE)指标。本文用它来比较无线系统在大飞频环境下由于衰落而产生的性能。评估了由于衰落导致的每能量容量比的退化。结果表明,在非衰落和衰落条件下,飞蜂窝与宏蜂窝的部署是节能的。此外,在所选择的系统中,发现每能量容量的退化是衰落比的函数,从而指出信道衰落类型的重要性。
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引用次数: 2
Advancements in medical imaging through Kinect: A review 通过 Kinect 推进医学成像:综述
Pub Date : 2017-11-01 DOI: 10.1109/ISWSN.2017.8250032
Iqra Jawaid, Jawad Khalid Qureshi
Use of imaging has become widespread in almost every field of Science and Engineering. Imaging tools and image processing techniques are playing very vital role in the advancements of technology. Especially in the medical field where examination, diagnostics and analysis is always needed for better treatment of diseases by using effective imaging techniques e.g. X- ray imaging, ultrasounds, radiology, CT scans etc. For the detection of cancerous cells, these imaging devices are highly appreciable. The medical imaging devices used by the doctors are very costly due to which the cost of diagnosis is also increased. This paper reviews the techniques and methodologies adopted in the diagnosis of malfunctioning body parts and surgeries. The capabilities of smart sensing electronic gadget “Kinect” are presented over the expensive medical imaging equipment. It provides us two forms of outputs, RGB data and depth data of the under examination object or person. The study validates better identification of objects using kinect sensor as compared to earlier image capturing devices.
成像技术已广泛应用于几乎所有科学和工程领域。成像工具和图像处理技术在科技进步中发挥着至关重要的作用。特别是在医疗领域,为了更好地治疗疾病,总是需要使用有效的成像技术(如 X 射线成像、超声波、放射学、CT 扫描等)进行检查、诊断和分析。对于癌细胞的检测,这些成像设备具有很高的价值。医生使用的医学成像设备非常昂贵,因此也增加了诊断成本。本文回顾了在诊断身体部位故障和手术中采用的技术和方法。与昂贵的医疗成像设备相比,智能传感电子设备 "Kinect "的功能更胜一筹。它为我们提供两种形式的输出,即被检查物体或人的 RGB 数据和深度数据。与早期的图像捕捉设备相比,这项研究验证了使用 Kinect 传感器能更好地识别物体。
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引用次数: 2
Dual-polarized data dense chipless RFID tag towards IoT applications 面向物联网应用的双极化数据密集无芯片RFID标签
Pub Date : 2017-11-01 DOI: 10.1109/ISWSN.2017.8250038
Sumra Zeb, J. A. Satti, Ayesha Habib, Y. Amin, H. Tenhunen
This research article proposes a novel, low-cost, dual-polarized slot/resonator based structure. The tag has a triangular geometry and is designed within a miniaturized footprint of 29 × 29 mm2. The proposed tag is capable of transmitting 38-bit data; which depicts that 238 number of different objects/items can be tagged. The tag is arranged in such a manner that each slot i.e., (metal gap) corresponds to a resonance dip or a logic state ‘1' in the radar cross-section (RCS) curve. Similarly, a shorted/removed slot corresponds to a logic state ‘0’. The tag has been realized for rigid as well as flexible substrates which include, Rogers RT/duroid®/5880, Rogers RT/duroid®/5870 (flexible) and Taconic TLX-0 with copper as the radiating material. The frequency range for Rogers RT/duroid®/5880 is 4.61–14.6 GHz, for Rogers RT/duroid®/5870 (flexible) is 4.7–14.8 GHz and is 4.6–14.5 GHz for Taconic TLX-0 substrate. Hence, the compact, flexible and high data dense passive chipless radio frequency identification (RFID) tag can be deployed in various businesses and internet of things (IoT) based smart applications.
本文提出一种新颖、低成本、双极化槽/谐振腔结构。该标签具有三角形几何形状,设计在29 × 29 mm2的小型化占地面积内。所述标签能够传输38位数据;它描述了238个不同的对象/项目可以被标记。标签的布置方式是,每个槽即(金属间隙)对应于雷达横截面(RCS)曲线中的共振倾角或逻辑状态“1”。类似地,短路/移除的插槽对应于逻辑状态' 0 '。该标签已经实现了刚性和柔性基板,包括罗杰斯RT/duroid®/5880,罗杰斯RT/duroid®/5870(柔性)和Taconic TLX-0与铜作为辐射材料。Rogers RT/duroid®/5880的频率范围为4.61-14.6 GHz, Rogers RT/duroid®/5870(柔性)的频率范围为4.7-14.8 GHz, Taconic TLX-0基板的频率范围为4.6-14.5 GHz。因此,紧凑,灵活和高数据密度的无源无芯片射频识别(RFID)标签可以部署在各种业务和基于物联网(IoT)的智能应用中。
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引用次数: 3
Efficiency optimization under variable packet error rate for wireless LAN 可变分组错误率下无线局域网的效率优化
Pub Date : 2017-11-01 DOI: 10.1109/ISWSN.2017.8250031
Arooj Mobasher Butt, Ali Nasir
Efficiency of a wireless local area network (LAN) depends upon two factors i.e. length of payload and number of retransmissions. In calculation of optimal efficiency based on the mentioned factors, packet error rate is assumed to be constant. In the practical set-up of wireless LAN communication systems, the packet error rate is not constant and may vary from the theoretically determined value. Thus, optimization of the efficiency initially requires estimation of packet error rate and then subsequent calculation of optimal payload length and number of retransmissions. This paper discusses the calculation of the value of optimal payload length and retransmission rate that maximizes the channel efficiency, under variable packet error rate in wireless LAN communication systems. The proposed method of optimization involves two steps i.e. offline tabulation and online linear interpolation of the values of the optimal payload length and retransmissions corresponding to the packet error rate values. The simplicity of the proposed approach renders an easy and effective implementation. A minor issue involved in the practical application of the proposed method is also discussed.
无线局域网(LAN)的效率取决于两个因素,即有效载荷的长度和重传次数。在计算基于上述因素的最优效率时,假设包错误率恒定。在无线局域网通信系统的实际设置中,分组误码率不是恒定的,可能会偏离理论确定的值。因此,效率的优化首先需要估计数据包错误率,然后计算最佳有效负载长度和重传次数。本文讨论了无线局域网通信系统在可变分组错误率下,使信道效率最大化的最优有效载荷长度和重传率的计算。所提出的优化方法包括离线制表和在线线性插值两步,即最优有效载荷长度和与包错误率值相对应的重传值。所提出方法的简单性使其易于有效地实现。本文还讨论了在实际应用中所涉及的一个小问题。
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引用次数: 0
Design and analysis of C shaped chipless RFID tag C型无芯片RFID标签的设计与分析
Pub Date : 2017-11-01 DOI: 10.1109/ISWSN.2017.8250009
Maleeha Mumtaz, Syeda Fatima Amber, A. Ejaz, Ayesha Habib, S. I. Jafri, Y. Amin
In this paper, we demonstrate the passive chipless RFID tag having C shaped copper resonators operating in ultra wide band (2.5–5.5 GHz). The efficient bandwidth utilization is performed by using the frequency coding technique. The number of possible unique combinations is 210. Measurements and calculations are performed in frequency domain and the results are shown with the help of radar cross section (RCS) plot. The tag design is optimized and analyzed for three different substrates having same compact geometry of 20 × 40 mm2. The comparative analysis shows that the overall bandwidth of FR4, Rogers RT5880 and Taconic TLX-0 is 2.85 GHz, 2.5 GHz and 2.03 GHz respectively. The proposed tag is a suitable candidate for applications requiring high data capacity with an average tag size and simple resonating structures.
在本文中,我们展示了C形铜谐振器在超宽带(2.5-5.5 GHz)下工作的无源无芯片RFID标签。利用频率编码技术实现了有效的带宽利用。可能的唯一组合的数量是210。在频域进行了测量和计算,并利用雷达截面(RCS)图显示了测量结果。对具有相同紧凑几何形状(20 × 40 mm2)的三种不同基板的标签设计进行了优化和分析。对比分析表明,FR4、Rogers RT5880和Taconic TLX-0的总带宽分别为2.85 GHz、2.5 GHz和2.03 GHz。所提出的标签是需要高数据容量的应用的合适候选者,具有平均标签尺寸和简单的谐振结构。
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引用次数: 15
Compensation of per-energy capacity ratio degradation due to fading in femto-macro environment 飞宏环境下容量比退化的补偿
Pub Date : 2017-11-01 DOI: 10.1109/ISWSN.2017.8250028
A. Sheikh, M. Khalifa, A. Zerguine
Per-energy capacity ratio is an energy efficiency (EE) metric that compares performances of different communication systems. In this paper, the per-energy capacity ratio is investigated in macro-femto environment operating in the presence of channel fading. The degradation in the per energy capacity ratio due to fading is evaluated. The power control is used to compensate the degradation in the Per-energy Capacity due to fading wireless systems operating in macro-femto environment. The impact of inaccuracy of power control on per capacity ratio is also investigated.
每能量容量比是一种比较不同通信系统性能的能效(EE)指标。本文研究了存在信道衰落的大飞频环境下的单能量容量比问题。评估了由于衰落引起的每能量容量比的退化。功率控制用于补偿无线系统在大飞频环境下由于衰落而导致的每能量容量下降。研究了功率控制不准确对单位容量比的影响。
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引用次数: 0
Lower-complexity Wiener filtering for UE-RS channel estimation in LTE DL system 低复杂度维纳滤波用于LTE DL系统中UE-RS信道估计
Pub Date : 2017-11-01 DOI: 10.1109/ISWSN.2017.8250040
M. Zourob, R. Rao
Channel estimation algorithms play a key role in 3GPP Long Term Evolution (LTE) Downlink (DL) systems in facilitating coherent detection of data. In this paper, we report the performance of a new scheme for User Equipment-specific Reference Signals (UE-RS) channel estimation, which is 2 1- D Wiener filtering with linear interpolation as a less computationally complex scheme compared to 2-D Wiener filtering and interpolation. Simulations show that 2 1-D Wiener filtering with linear interpolation requires = 34% and = 2.6% of the number of computations needed by 2-D Wiener filtering with linear interpolation and Wiener interpolation, respectively. In addition, it was shown that 2 1-D Wiener filtering performance is sub-optimal when compared with the performance of 2-D Wiener filtering. Moreover, simulations indicate that the best noise reduction method is a combination of both averaging and Wiener filtering with linear interpolation, where the lower bound is a function of both SNR and the channel statistics.
信道估计算法在3GPP长期演进(LTE)下行链路(DL)系统中起着促进数据相干检测的关键作用。在本文中,我们报告了一种用于用户设备特定参考信号(UE-RS)信道估计的新方案的性能,该方案是21维维纳滤波与线性插值,与二维维纳滤波和插值相比,它的计算复杂度更低。仿真结果表明,采用线性插值进行2维维纳滤波所需的计算量分别是采用线性插值和维纳插值进行2维维纳滤波所需计算量的34%和2.6%。此外,与二维维纳滤波的性能相比,21维维纳滤波的性能是次优的。此外,仿真表明,最好的降噪方法是将平均和维纳滤波与线性插值相结合,其中下界是信噪比和信道统计量的函数。
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引用次数: 1
Anti-theft mobile phone security system with the help of BIOS 手机防盗防盗系统借助BIOS
Pub Date : 2017-11-01 DOI: 10.1109/ISWSN.2017.8250035
Abdul Waheed, M. Riaz, M. Y. Wani
Mobile tracking is a key challenge that has been investigated from both practical and theoretical aspects. This paper proposes an anti-theft mobile phone security system using basic input/output system (BIOS). This mobile phone security system allows us to determine the position of mobile device. The proposed security system is based on hardware implementation technique in which mobile is designed in such a way that a mobile can be traced out even if battery and Subscriber Identity Module (SIM) are plug-out. Furthermore, we also consider the usage of BIOS and its importance in our daily life. Our proposed solution will help the designers in improving the device security.
移动跟踪是一个关键的挑战,已经从实践和理论两个方面进行了研究。本文提出了一种基于基本输入输出系统(BIOS)的防盗手机安全系统。这个手机安全系统可以让我们确定移动设备的位置。所提出的安全系统基于硬件实现技术,其中手机被设计成即使拔掉电池和用户身份模块(SIM)也可以追踪手机的方式。此外,我们还考虑了BIOS的使用及其在我们日常生活中的重要性。我们提出的解决方案将有助于设计人员提高设备的安全性。
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引用次数: 2
期刊
2017 International Symposium on Wireless Systems and Networks (ISWSN)
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