• Title/Summary/Keyword: wireless application

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Data Processing Framework Design by Bluetooth (블루투스를 이용한 데이터 처리 프레임워크 설계)

  • Nam, Yong-su;Kim, Tae Yong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.05a
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    • pp.455-458
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    • 2009
  • Bluetooth technology has been applied to mobile device, personal computers, peripherals, information and variety of consumer electronics. Not also the original Bluetooth technology must be especially focused in the application of mobile phone but applications such as wireless headsets and dial-up networking may be increased. However Bluetooth is so only focused to wireless headset application that the various software applications are presently ignored. In this paper, we propose the framework design to implement Bluetooth profile for kiosk servers, which can be used in Theater, train station, bank, government and public offices. Then mobile devices capable of processing user's input/output can be remotely accessed in these servers by using Bluetooth module and AP, although Kiosk servers are only processed user input data.

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A WTLS Handshake protocol against Active Attack (능동적 공격에 안전한 WTLS Handshake 프로토콜)

  • Han, Jong-Soo;Jung, Young-Seok;An, Ki-Bum;Kwak, Jin;Won, Dong-Ho
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.13 no.5
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    • pp.113-127
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    • 2003
  • WTLS as secure protocol of WAP makes TLS that is used in wireless Intemet protocol for TCP security be appropriate for wireless environments. And purpose of WTLS is to provide safe and efficient services. WTLS protocol consists of 4 protocols(Handshake, ChangeCipherSpec, Alert, Application Data etc.). In this papers we analyze properties of Handshake protocol and procedures of establishing master secret in detail. And then we analyze securities against several attacker models with them for a basis. Also we propose new Handshake protocol that is secure against active attacker model and can provide various security services.

Review on Energy Efficient Clustering based Routing Protocol

  • Kanu Patel;Hardik Modi
    • International Journal of Computer Science & Network Security
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    • v.23 no.10
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    • pp.169-178
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    • 2023
  • Wireless sensor network is wieldy use for IoT application. The sensor node consider as physical device in IoT architecture. This all sensor node are operated with battery so the power consumption is very high during the data communication and low during the sensing the environment. Without proper planning of data communication the network might be dead very early so primary objective of the cluster based routing protocol is to enhance the battery life and run the application for longer time. In this paper we have comprehensive of twenty research paper related with clustering based routing protocol. We have taken basic information, network simulation parameters and performance parameters for the comparison. In particular, we have taken clustering manner, node deployment, scalability, data aggregation, power consumption and implementation cost many more points for the comparison of all 20 protocol. Along with basic information we also consider the network simulation parameters like number of nodes, simulation time, simulator name, initial energy and communication range as well energy consumption, throughput, network lifetime, packet delivery ration, jitter and fault tolerance parameters about the performance parameters. Finally we have summarize the technical aspect and few common parameter must be fulfill or consider for the design energy efficient cluster based routing protocol.

Radiation Characteristic Analysis of Vivaldi Antenna with Honeycomb Core (허니콤 코어에 적용된 비발디 안테나의 방사 특성 분석)

  • Woo-Hyeok Jang;Jung-Eun Noh;Chun-Gon Kim
    • Composites Research
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    • v.37 no.1
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    • pp.53-57
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    • 2024
  • Numerous studies have explored structural antennas for integrating advanced wireless systems into aircraft without altering their external form. However, much of the research on structural antennas has focused on patch antennas, which are characterized by limitations such as narrow frequency bands and low directivity. In contrast, the Vivaldi antenna, widely utilized in wireless applications, offers the advantages of a wide frequency band and high directivity. Nevertheless, its application to aircraft has been challenging due to radiation direction constraints. In this study, we endeavor to address this issue by proposing the application of the antenna patch onto the honeycomb wall, thus enabling the use of the Vivaldi antenna on aircraft. The impact of the honeycomb structure on antenna radiation performance was analyzed, and the potential of the honeycomb Vivaldi antenna was validated through simulation.

A Development of Application System for Mobile Environment (무선 이동 환경을 위한 원서접수시스템 개발)

  • 정상혁;주경수
    • The Journal of Society for e-Business Studies
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    • v.8 no.1
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    • pp.71-83
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    • 2003
  • Nowadays on-line services based on Internet are being popularized and there are lots of E-Commerce applications using Internet. So we can use lots of information on anytime. To maximize the convenience of the network, the platform of the service is moving from E-Commerce to M-Commerce. In this paper we developed the application system for mobile environment. Therefore applicants can apply their applications and see the competition rate of the applying departments anytime and anywhere even if in the network disconnection regions. And we can manage more economically the application system because we use the network only the time when we syncronize the mobile device to mobile server.

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Nano Esto: An IDE for USN Application Developers (Nano Esto: USN 응용 소프트웨어 개발을 위한 통합개발환경)

  • Jung, Changhee;Woo, Duk-Kyun;Kim, Yongsang;Chun, Ingeol;Lim, Chaedeok
    • IEMEK Journal of Embedded Systems and Applications
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    • v.1 no.1
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    • pp.14-19
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    • 2006
  • Integrated development environment (IDE) plays an important role in reducing the developm ent time, thereby improving software development productivity. In recent years, ubiquitous sensor networks (USNs) have become increasingly popular. However their application software is developed mostly using command-line-based tools. Such a development process is not only likely to be error-prone but also inconvenient to debug errors. This paper describes a novel IDE for USN application developers called Nano Esto that provides a single, consistent, and integrated environment for building and executing USN applications. The Nano Esto helps the developers edit and cross-compile source code and download the executable image to the program memory of sensor nodes with just a few button clicks. It also provides support for configuring an application-specific kernel, simulating a wireless sensor network, and estimating power consumption in each sensor node. Currently, Nano Esto runs on Linux as well as on Windows with the same look and feel.

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Novel Speech Web Architecture Based on Information Selection Agent

  • Kwon, Hyeong-Joon;Kinoshita, Tetsuo
    • International Journal of Advanced Culture Technology
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    • v.1 no.1
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    • pp.11-14
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    • 2013
  • In this paper, we propose a prototype of the SpeechWeb application using the information selection agent. We describe its design and implementation method and illustrated the processing results with the aid of some screenshots. Proposed SpeechWeb application presents the associated contents to the user by the aid of dynamic voice-anchors. These contents are presented using the apriori algorithm, which is one of data mining techniques. The application is better than the existing user-initiative structure from the viewpoint of making the user's interesting induction. Moreover, we believe that our proposed application is effective in information retrieval through wired and wireless telephone networks.

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Bridge Wireless Measurement System Development based on LoRa IoT (LoRa IoT 기반의 교량 무선 자동계측 시스템 개발)

  • Park, Jin-o;Park, Sang-Heon;An, Sung-Ju;Park, Won-Joo;Kim, Jong-Hoon
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.23 no.7
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    • pp.164-171
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    • 2019
  • Focusing on the bridge facilities, which occupy the largest proportion among SOC public facilities in Korea, it is possible to reduce the cost compared to existing wired measurement systems or wireless measurement systems developed by domestic telecommunications companies, and to increase the technical perfection to be applied to many bridges. We developed a wireless measurement system for bridges. Using LoRa, one of the unlicensed LPWAN technologies, we have developed an optimized MEMS-based LoRa smart sensor node considering the domestic ISM band and the existing wired sensor LoRa DAQ sensor node that can communicate with the LoRa network. Application server was developed for the test bed performance verification and efficient management of the developed sensor node.

An Energy-Efficient Clustering Scheme based on Application Layer Data in Wireless Sensor Networks (응용 계층 정보 기반의 에너지 효율적인 센서 네트워크 클러스터링 기법)

  • Kim, Seung-Mok;Lim, Jong-Hyun;Kim, Seung-Hoon
    • Journal of Korea Multimedia Society
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    • v.12 no.7
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    • pp.997-1005
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    • 2009
  • In this paper, we suggest an energy-efficient clustering scheme based on cross-layer design in wireless sensor networks. The proposed scheme works adequately for the characteristic environment of the networks. In the proposed clustering scheme, we separate clusters composed of sensor nodes in the event area from clusters of the other area when an event occurs by using an application layer information. We can save energy from multiple paths through multiple clusters to deliver the same event. We also suggest TDMA scheduling for non-evented clusters. In the scheduling, we allocate one time slot for each node to save energy. The suggested clustering scheme can increase the lifetime of the entire network. We show that our scheme is energy efficient through simulation in terms of the frequency of event occurrences, the event continual time and the scope.

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Serviceability Evaluation of ZigBee Technology for Construction Applications (설문조사를 통한 ZigBee 무선통신기술의 건설산업 사용성평가에 관한 연구)

  • Shin, Young Shik;Cao, Shang;Jang, Won-Suk
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.32 no.3D
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    • pp.247-258
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    • 2012
  • This research evaluates the serviceability of ZigBee device that provides a potential technology to realizing the ubiquitous computing by improving the productivity and effectiveness in construction and data acquisition. Literature review was conducted in various application areas such as bridge monitoring, slope management, road management, highway traffic control. In addition characteristics and challenges in various wireless technologies are described to identify their adoptability to construction environment. Among them, ZigBee technology was selected to introduce the functionality on hardware, network, and security. Then, questionnaire survey was implemented by four different group, construction engineers, students, hardware developers, and researchers to explore the success and failure factors of ZigBee technology in construction area. The results proposes a guideline of the applicability of ZigBee technology in the area of serviceability, application area, considerations, and future direction. This paper would provide valuable information for future researches and technology development in designing the wireless sensor network applications.