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2017 11th International Conference on Telecommunication Systems Services and Applications (TSSA)最新文献

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Secure HEVC video by encrypting header of wavefront parallel processing 通过加密波前并行处理的头部来保护HEVC视频
Alvin Mustafa, Hendrawan
This research proposed a method In securing HEVC video. The proposed method considered to be efficient (few bytes that being manipulated), effective (changes in certain frame impacts whole group of picture), powerful (shown by visual and PSNR analysis), and has potential use in video-related applications. The main idea of the proposed method is performing an encryption method to the first 3 bytes of WPP's header for video which is one of the feature of the HEVC standard. The encryption is done for I, P, and B frames of the inputed video. The algorithm gives good results, which can be shown from visual observation as well as from an objective assessment that gives a small value of PSNR.
本研究提出了一种保护HEVC视频的方法。所提出的方法被认为是高效的(被操纵的字节很少),有效的(某些帧的变化影响整个图像组),强大的(通过视觉和PSNR分析显示),并且在视频相关应用中具有潜在的用途。该方法的主要思想是对WPP视频头的前3个字节执行加密方法,这是HEVC标准的特征之一。对输入视频的I、P和B帧进行加密。该算法取得了良好的效果,无论是从视觉观察还是从客观评价来看,PSNR值都很小。
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引用次数: 1
Heart rate monitoring using IoT wearable for ambulatory patient 利用物联网可穿戴设备对流动病人进行心率监测
Hendry Cahya Irawan, T. Juhana
This paper describes the development of a prototype that allows monitoring heart rate and inter beat intervals for some subjects. This Prototipe was realizationed using wearable Smartwatch Samsung gear S3, with library WebSocket, nodejs and JavaScript. The system architecture is described where the server nodejs act as signal processing and GUI code for the client. The signal processing algorithm is implemented in JavaScript. GUI applications are presented which can be used in monitoring tools. Some important parts of the code are describes the communication between wearable smartwatch Samsung gear S3, server and client. The developed prototype shows one possible realization of monitoring of biomedical.
本文描述了一种原型的开发,它可以监测某些受试者的心率和心跳间隔。此原型使用可穿戴智能手表三星gear S3实现,使用库WebSocket, nodejs和JavaScript。描述了系统架构,其中服务器节点js充当客户端的信号处理和GUI代码。信号处理算法是用JavaScript实现的。介绍了可用于监控工具的GUI应用程序。代码的一些重要部分描述了可穿戴智能手表Samsung gear S3、服务器和客户端之间的通信。所开发的原型显示了生物医学监测的一种可能实现。
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引用次数: 16
On the design and development of flying BTS system using balloon for remote area communication 基于气球的远程通信飞行BTS系统的设计与开发
Iskandar, M. A. Wibisono, S. Priatna, T. Juhana, Hendrawan, N. Rachmana
This paper aims at designing and developing an aerial ‘flying platform’ for communication in remote area in which common telecommunication infrastructures are unavailable or not economically viable to be deployed. The base transceiver station communication devices of the platform consists of Raspberry Pi, Wi-Fi dongle, 4W amplifier and single element patch antenna as radiator. All communication devices will be packed by a container to be placed in a balloon. The balloon is designed to lift the load so that it is at an altitude of about 70 meters for the experiment. At this stage of our research, the system testing was done by placing the communication devices at the 4th floor of Labtek 8 building and measuring the received signal at surrounding places. From the measurement results, the maximum range of the ‘flying platform’ coverage is about 300 meters with received signal level of −70 dBm.
本文旨在设计和开发一种空中“飞行平台”,用于在公共电信基础设施不可用或经济上不可行的偏远地区部署的通信。该平台的收发基站通信设备由树莓派、Wi-Fi加密狗、4W放大器和单元件贴片天线作为散热器组成。所有的通讯设备将用一个容器包装,放在一个气球里。气球的设计目的是将负载提升到70米左右的高度进行实验。在我们的研究阶段,系统测试是通过将通信设备放置在Labtek 8大楼的4层,并测量周围地方的接收信号来完成的。从测量结果来看,“飞行平台”的最大覆盖范围约为300米,接收信号电平为- 70 dBm。
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引用次数: 2
Design and realization of microstrip antenna for GPS application using proximity coupled techniques 利用接近耦合技术设计与实现GPS微带天线
A. S. S. Mariyanto, M. Irfan, Suthami Ariessaputra, O. M. C. Mustiko
Wireless technology development has driven many innovations in the realization of the antenna. Microstrip antenna is one of the very popular antenna which has been used on the navigation system such as Global Positioning System (GPS). In this research has been designed a microstrip antenna in form of rectangular array that is supplied with proximity coupled method using FR-4 Epoxy. This antenna is designed by reorienting the rectangular array by 45°. This designed antenna is implemented at frequency 1575.42 MHz. The measurement shows that the designed antenna has gain = 6.21 dB, return loss (S11) = −13,91 dB, Voltage Standing Wave Ratio (VSWR) = 1.5, bandwidth = 41 MHz and able to generate dual polarization.
无线技术的发展带动了天线实现的许多创新。微带天线是目前全球定位系统(GPS)等导航系统中应用最为广泛的天线之一。本研究设计了一种矩形阵列微带天线,该天线采用FR-4环氧树脂近似耦合的方式供电。该天线是通过将矩形阵列重新定向45°来设计的。设计的天线在1575.42 MHz频率上实现。测量结果表明,设计的天线增益为6.21 dB,回波损耗(S11)为- 13,91 dB,驻波电压比(VSWR)为1.5,带宽为41 MHz,能够产生双极化。
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引用次数: 2
VP-Lab: A virtual way to stay connected with programming laboratory VP-Lab:与编程实验室保持联系的虚拟方式
R. Syahputri, Nurfiana, Subhan Rajib Nahal
The VP-lab is built to accommodate the need of virtual laboratory of programming language. The system compiles the program, stored and transferred the data, and marked the exam in an online manner. This kind of approach gives benefits to the parties involved in how utilizing the internet technology to give access to the laboratory that is not limited by space and time. Moreover, the students can optimize their time to do the experiment on Javascript, HTML, and PHP language. This system is developed by the help of Javascript language and node.js as the server.
虚拟实验室是为适应编程语言虚拟实验室的需要而建立的。该系统编制程序,存储和传输数据,并以在线方式阅卷。这种方法使有关各方受益于如何利用互联网技术使进入实验室不受空间和时间的限制。此外,学生可以充分利用自己的时间来做Javascript, HTML和PHP语言的实验。本系统采用Javascript语言,以node.js为服务端进行开发。
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引用次数: 2
LTE networks BTS location optimation with double step grey wolf optimizer 基于双步灰狼优化器的LTE网络BTS位置优化
M. Komala, I. Wahidah, Istikmal
Base station is the main network element in cellular networks deployment. The vast area of placement, position variation and number of users and environmental factors spawned a vastly searching solution space. Those are makes base station location determination an NP-hard problem. Network planning optimization frequently use meta-heuristic algorithm to find the optimum solution. Grey Wolf Optimizer (GWO), one of meta-heuristic algorithm has advantages in number of parameters used and simplicity of the process. GWO allocates exploration phase and exploitation phase in the same portion makes diversity issue in the finding solution process. The research proposes modified GWO to prolong exploration phase that enabler the algorithm to expand the search through wider search space. Double step GWO change the way of coefficient vector |A| decrease along the iteration. This new algorithm differentiates changing behavior of vector coefficient between exploration phase and exploitation phase. Simulation conducted covered variation of areas, user number and user density. The work evaluated the number and locations of BTS deployed, coverage area and number of users that can be and compare it to grey wolf optimizer.
基站是蜂窝网络部署的主要网元。广阔的放置区域、位置变化以及用户数量和环境因素产生了巨大的搜索解决方案空间。这些都使得基站定位成为一个np难题。网络规划优化经常使用元启发式算法来寻找最优解。灰狼优化算法(Grey Wolf Optimizer, GWO)是一种元启发式算法,具有参数多、过程简单等优点。GWO将勘探阶段和开发阶段划分在同一部分,使得求解过程中存在多样性问题。本研究提出了改进的GWO,延长了搜索阶段,使算法能够在更广阔的搜索空间中扩展搜索。双步GWO改变了系数矢量|A|沿迭代递减的方式。该算法区分了矢量系数在勘探阶段和开采阶段的变化行为。模拟涵盖了区域、用户数量和用户密度的变化。该工作评估了BTS的部署数量和位置、覆盖范围和用户数量,并将其与灰狼优化器进行了比较。
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引用次数: 4
Alert, monitoring and tracking for electronic device prototype 电子设备原型的报警、监控和跟踪
Rini Handayani, Marlindia Ike Sari, A. Agung, Fakhri Ramdana, Adri Wahyudi
ALMONTD (ALert, MONitoring, and Tracking Device) is a system that allowed users to monitor the voltage, current, location of electronic devices, track the last position, and receive an alert message as the devices move away from its intended position. This system is equipped with MAX471 voltage sensors, Ublox neo-7m GPS shield, and SIM 900 GSM/GPRS communication module which is able to transmit data remotely wirelessly. ALMONTD also uses a web page as visualization media for its user interface including digital map. These sensors provide voltage and electrical current information. The GPS detect the current location. Voltage, electrical current, and current location then are transmitted to a web server by Arduino Pro Mini via GSM/GPRS communication module and alert message will be sent if ALMONTD are moved to certain distance.
ALMONTD(警报、监控和跟踪设备)是一个系统,允许用户监控电子设备的电压、电流、位置,跟踪最后的位置,并在设备偏离其预定位置时接收警报消息。该系统配备了MAX471电压传感器,Ublox neo-7m GPS屏蔽,SIM 900 GSM/GPRS通信模块,可以远程无线传输数据。ALMONTD还使用网页作为可视化媒体,用于包括数字地图在内的用户界面。这些传感器提供电压和电流信息。GPS检测当前位置。然后Arduino Pro Mini通过GSM/GPRS通信模块将电压、电流和电流位置传输到web服务器,当ALMONTD移动到一定距离时就会发出警报信息。
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引用次数: 2
Recovery of radar's beat signal based on compressive sampling 基于压缩采样的雷达拍信号恢复
Rita Purnamasari, A. B. Suksmono, Ian Joseph Matheus Edward, I. Zakia
Weather radar is a type of radar that used to detect rainfall, the direction of movement and speed, to know the level of rain and cloud composition. One of the problems that occurs in weather radar is the amount of raw data to be acquired in the digital signal processing process is too large, the size until Gigabyte. In order that, we using Compressive Sampling(CS) to reduce the radar's beat signal, as part of weather radar data. CS requires that the signal must be sparse on a certain basis. When using CS the radar's beat signal are compressed by projecting it onto a randomly generated orthogonal matrix and then recovered by ℓ1 norm optimization and Orhogonal Matching Pursuit (OMP) method. From the simulation, all the method of reconstruction can recover the beat signal radar. We also evaluate the relation of compression ratio and reconstruction accuracy. By PSNR measurement, we propose OMP algorithm for the better radar's beat signal reconstruction.
气象雷达是一种雷达,用来探测降雨、移动方向和速度,了解雨的水平和云的组成。气象雷达经常出现的问题之一就是在数字信号处理过程中需要采集的原始数据量太大,大到千兆字节。为此,我们使用压缩采样(CS)来减少雷达的热信号,作为气象雷达数据的一部分。CS要求信号在一定的基础上必须是稀疏的。雷达拍频信号通过投影到随机生成的正交矩阵上进行压缩,然后通过1范数优化和正交匹配追踪(OMP)方法进行恢复。仿真结果表明,所有的重建方法都能恢复雷达的热信号。我们还评价了压缩比与重建精度的关系。通过对PSNR的测量,提出了OMP算法,以更好地重建雷达拍频信号。
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引用次数: 4
RRC success rate accessibility prediction on SAE/LTE network using Markov chain model 基于马尔可夫链模型的SAE/LTE网络RRC成功率可达性预测
Hendrawan
Accessibility KPIs in SAE/LTE network are used to measure the success rate of users in accessing the network. The accessibility KPI is expressed in terms of probabilities that state how likely the user will be able to access the service for certain service times and conditions. Accessibility KPIs cover three areas to provide service ie. RRC success rate (RRC_SR), ERAB success rate and S1 setup success rate. In this study, future long-term performance of the RRC_SR, in term of KPI degradation will be predicted from existing historical data based on discrete time Markov Chain. Predicted KPI of RRC_SR in the long-run will be required in the failure management process for root cause analysis and to trigger preventive action. This is becoming increasingly important in line with the introduction of Self-Organizing Netwrok (SON) on SAE/LTE networks.
SAE/LTE网络中的可访问性指标用于衡量用户访问网络的成功率。可访问性KPI是用概率表示的,该概率说明了用户在特定服务时间和条件下能够访问服务的可能性。可访问性kpi涵盖了提供服务的三个方面。RRC成功率(RRC_SR), ERAB成功率和S1设置成功率。在本研究中,将基于离散时间马尔可夫链,从现有历史数据中预测RRC_SR未来KPI退化的长期表现。在故障管理过程中,需要预测RRC_SR的长期KPI,以分析根本原因并触发预防措施。随着SAE/LTE网络上自组织网络(SON)的引入,这一点变得越来越重要。
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引用次数: 0
Web-based macroscopic road traffic simulator 基于网络的宏观道路交通模拟器
Hilman Ramadhan, I. B. Nugraha
Simulator works as an evaluation tool to implement the traffic system planning. However, available traffic simulator prompts the user to install the application to use it. This makes the simulation became exclusively accessible and needs more resource to run. It may hinder the planning process especially when it is done collaboratively. Most available traffic simulators also have not included the real-time traffic data into the simulation by default. It is possible to use those data, but it needs more effort and code-intensive which is not suitable for non-technical users. The real-time traffic data represent the real-world traffic distribution. It can be applied to simulator to simulate the vehicles movement in more realistic way in terms of vehicle distribution. A web-based macroscopic road traffic simulator is proposed by using web technology. It may act as a cloud road traffic simulator services to create an easy-to-access while integrating real-time traffic data. The proposed simulator is discussed in terms of map data preparation, traffic network creation, traffic data integration to simulator, and vehicle generation. Results of current development shows feasibility of implementing the simulator using the web technology. There are constraints faced on developing the simulator which provide more future works to create a web-based macroscopic traffic simulator.
模拟器作为一种评估工具来实施交通系统规划。然而,可用的流量模拟器提示用户安装应用程序来使用它。这使得模拟变得专一可访问,并且需要更多的资源来运行。它可能会阻碍规划过程,特别是当它是协作完成时。大多数可用的交通模拟器也没有默认将实时交通数据包含到模拟中。可以使用这些数据,但需要更多的努力和代码密集,不适合非技术用户。实时流量数据代表了真实世界的流量分布。该方法可以应用于仿真器,从车辆分布的角度更真实地模拟车辆的运动。利用web技术,提出了一种基于web的宏观道路交通仿真系统。它可以作为一个云道路交通模拟器服务,创建一个易于访问的同时集成实时交通数据。本文从地图数据的准备、交通网络的创建、交通数据与模拟器的集成以及车辆的生成等方面进行了讨论。目前的开发结果表明,利用web技术实现该仿真器是可行的。该仿真器在开发过程中存在诸多制约因素,为构建基于web的宏观交通仿真器提供了进一步的工作。
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引用次数: 4
期刊
2017 11th International Conference on Telecommunication Systems Services and Applications (TSSA)
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