• Title/Summary/Keyword: 무선 인체 영역 네트워크

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A Practical Authentication System for Wireless Body Area Networks(WBAN) (무선 인체 영역 네트워크(WBAN)를 위한 실용적인 인증 시스템)

  • Ahn, Hae-Soon;Yoon, Eun-Jun;Bu, Ki-Dong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37 no.4C
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    • pp.290-296
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    • 2012
  • In this paper, we propose a practical authentication system based on Wireless Body Area Networks(WBAN) for U-healthcare medical information environments. The proposed authentication system is based on symmetric cryptosystem such as AES and is designed to not only provide security such as data secrecy, data authentication, data integrity, but also prevent replay attack by adopting timestamp technique and perform secure authentication between sensor node, master node, base-station, and medical server.

Performance Improvement of IEEE 802.15.4 MAC For WBAN Environments in Medical (의료 WBAN 환경을 위한 IEEE 802.15.4 MAC 성능 개선)

  • Lee, Jung-Jae;Hong, Jae-Hee
    • The Journal of the Korea institute of electronic communication sciences
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    • v.10 no.1
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    • pp.103-110
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    • 2015
  • WBAN(Wireless Body Area Network) is a Wireless Sensor Network for supporting various applications around body within 2~3m which consists of medical and non-medical device. MAC in WBAN environment should satisfy requirements such as low power consumption, various transmission rate, QoS, and duty-cycle, efficiently distribute frequency band, be strong at traffic load and save energy. This paper proposes AQ(Adaptive Queuing) MAC superframe structure for efficient energy use, considering the increase of traffic load. The simulation result also show that transmission rate and average MAC delay rate is improved comparing IEEE 802.15.4 MAC with AQ MAC.

The Medium Access Scheduling Scheme for Efficient Data Transmission in Wireless Body Area Network (WBAN 환경에서 효율적 데이터 전송을 위한 매체 접근 스케줄링 기법)

  • Jang, EunMee;Park, TaeShin;Kim, JinHyuk;Choi, SangBan
    • Journal of the Institute of Electronics and Information Engineers
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    • v.54 no.2
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    • pp.16-27
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    • 2017
  • IEEE 802.15.6 standard, a Wireless Body Area Network, aims to transfer not only medical data but also non-medical data, such as physical activity, streaming, multimedia game, living information, and entertainment. Services which transfer those data have very various data rates, intervals and frequencies of continuous access to a medium. Therefore, an efficient anti-collision operations and medium assigning operation have to be carried out when multiple nodes with different data rates are accessing shared medium. IEEE 802.15.6 standard for CSMA/CA medium access control method distributes access to the shared medium, transmits a control packet to avoid collision and checks status of the channel. This method is energy inefficient and causes overhead. These disadvantages conflict with the low power, low cost calculation requirement of wireless body area network, shall minimize such overhead for efficient wireless body area network operations. Therefore, in this paper, we propose a medium access scheduling scheme, which adjusts the time interval for accessing to the shared transmission medium according to the amount of data for generating respective sensor node, and a priority control algorithm, which temporarily adjusts the priority of the sensor node that causes transmission concession due to the data priority until next successful transmission to ensure fairness.

Link Energy Efficiency Routing Strategy for Optimizing Energy Consumption of WBAN (WBAN의 에너지 소비 최적화를 위한 링크 에너지 효율 라우팅 전략)

  • Lee, Jung-jae
    • Journal of Internet Computing and Services
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    • v.23 no.5
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    • pp.1-7
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    • 2022
  • IoT technology that utilizes wireless body area networks (WBAN) and biosensors is an important field in the health industry to minimize resources and monitor patients. In order to integrate IoT and WBAN, a cooperative protocol that constitutes WBAN's limited sensor nodes and rapid routing for efficient data transmission is required. In this paper we propose an we propose an energy efficient and cooperative link energy-efficient routing strategy(LEERS) to solve the problems of redundant data transmission detection and limited network sensor lifetime extention. The proposed scheme considers the hop count node congestion level towards the residual energy sink and bandwidth and parameters. In addition, by determining the path cost function and providing effective multi-hop routing, it is shown that the existing method is improved in terms of residual energy and throughput

Design and Verification using Energy Consumption Model of Low Power Sensor Network for Monitoring System for Elderly Living Alone (독거노인 모니터링 시스템을 위한 저전력 센서 네트워크 설계 및 에너지 소모 모델을 이용 검증)

  • Kim, Yong-Joong;Jung, Kyung-Kwon
    • Journal of IKEEE
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    • v.13 no.3
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    • pp.39-46
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    • 2009
  • Wireless sensor networks consist of small, autonomous devices with wireless networking capabilities. In order to further increase the applicability in real world applications, minimizing energy consumption is one of the most critical issues. Therefore, accurate energy model is required for the evaluation of wireless sensor networks. In this paper we analyze the power consumption for wireless sensor networks. To develop the power consumption model, we have measured the power characteristics of commercial Kmote node based on TelosB platforms running TinyOS. Based on our model, the estimated lifetime of a battery powered sensor node can use about 6.9 months for application of human detection using PIR sensors. This result indicates that sensor nodes can be used in a monitoring system for elderly living alone.

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Transmission Latency-Aware MAC Protocol Design for Intra-Body Communications (인체 채널에서 전자기파 전송 지연 특성을 고려한 다중 매체 제어 프로토콜 설계)

  • Kim, Seungmin;Park, JongSung;Ko, JeongGil
    • KIPS Transactions on Computer and Communication Systems
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    • v.8 no.8
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    • pp.201-208
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    • 2019
  • Intra-Body Communication (IBC) is a communication method using the human body as a communication medium. The fact that our human body consists of water and electrolyte allow such communication method could work and have strength in low-power. However, because the IBC directly affects to human body by using it as a medium, there was a lack of research in communication protocols of each communication layer. In this paper, we suggests MAC parameters which affects the performance of communication in human body channel, and propose new MAC protocol. Our results shows that our MAC is suitable for supporting high data rate applications with comparable radio duty cycle performance.

Performance Evaluation of Multi-Hop Transmissions in IEEE 802.15.6 UWB WBAN (IEEE 802.15.6 UWB WBAN에서 다중 홉 전송에 대한 성능 평가)

  • Kim, Ho-Sung;Hwang, Ho Young
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.7
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    • pp.1313-1319
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    • 2017
  • In this paper, we evaluate the performance of multi-hop transmissions in IEEE 802.15.6 ultra wide band (UWB) wireless body area network (WBAN). The packet structure in the physical layer, and encoding and decoding are considered for multi-hop transmissions in IEEE 802.15.6 UWB WBAN. We analyze the data success rate and energy efficiency of multi-hop transmissions with considering the length of data payload, transmission power, and distances between the nodes in IEEE 802.15.6 UWB WBAN. Through simulations, we evaluate the data success rate and energy efficiency of multi-hop transmissions with varying the length of data payload, transmission power, and distances between the nodes in IEEE 802.15.6 UWB WBAN. Finally, we can select an energy-efficient multi-hop transmission in IEEE 802.15.6 UWB WBAN depending on the length of data payload, transmission power, and distances between the nodes.

Understanding of Technologies and Research Trends of Wireless Body Area Networks (Wireless Body Area Networks의 관련기술과 연구경향에 대한 이해)

  • Ha, Il-Kyu;Ahn, Byoung-Chul
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.18 no.8
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    • pp.1961-1972
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    • 2014
  • Recently, with the increasing of the interest in the integration of medical technology and information communication technology, researches on WBAN (Wireless Body Area Networks) that try to apply sensor network to the human body have been processed actively. The existing sensor network technology has the potential to be used in WBAN, but it has some limitations also. In particular, because the sensors are likely to communicate through each part of the body, it has a very different network environment from the sensor network that uses a free space. Therefore, researches on WBAN have a variety area of study that slightly different from the conventional sensor networks and take into account the characteristics of the body. In this study, we investigate the environmental characteristics of WBAN that are separated from the conventional sensor network, and the research trends of WBAN systematically by using the technique of SLR (Systematic Literature Review) from 2001 around when the concept of WBAN has been introduced. The investigation includes the classification of research and the researcher's features. And the survey results and the outlook for further study are summarized.

Technological Issues for Body Information Monitoring (생체정보 모니터링을 위한 기술적 이슈)

  • Park, Jong-Man
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.38B no.2
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    • pp.105-114
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    • 2013
  • Expansion and growth of body information monitoring service based on WBAN technology speeds up technological evolution in bio-signal detection and measurement, real time monitoring of vital sign and telemedicine control. It is essential for taking action against such technological evolution that newest technology trend and standardization issue should be included in designing and materializing body-information monitoring system strategically to secure preceding technology and to preoccupy market. This paper investigates and analyzes technological trend & issues, and suggests task to take action technologically.

An Energy-Efficient MAC protocol for WUSB over WBAN Protocol (인체영역 네트워크와 무선 USB의 결합을 위한 에너지 효율적인 MAC 프로토콜)

  • Kim, Jin Woo;Kim, Beom Mu;Jeon, Seong Min;Rajeev, Kumar Piyare;Shiu, Kumar;Bold, Sanja;Battsetsrg, Ganbaatar;Lee, Sung Ro
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.10a
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    • pp.429-431
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    • 2013
  • In this paper, we propose a low-power hibernation technique (LHT) for WUSB over IEEE 802.15.6 hierarchical MAC to improve its energy efficiency. Simulation results show that the LHT also integrate WUSB transactions and WBAN traffic efficiently while it achieves high energy efficiency.

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