• Title, Summary, Keyword: Bluetooth

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Data Transmission Method using Broadcasting in Bluetooth Low Energy Environment (저전력 블루투스 환경에서 브로드캐스팅을 이용한 데이터전송 방법)

  • Jang, Rae-Young;Lee, Jae-Ung;Jung, Sung-Jae;Soh, Woo-Young
    • Journal of Digital Contents Society
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    • v.19 no.5
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    • pp.963-969
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    • 2018
  • Wi-Fi and Bluetooth technologies are perhaps the most prominent examples of wireless communication technologies used in the Internet of Things (IoT) environment. Compared to widely used Wi-Fi, Bluetooth technology has some flaws including 1:1 connection (one-way) between Master and Slave, slow transmission, and limited connection range; Bluetooth is mainly used for connecting audio devices. Since the release of Bluetooth Low Energy (BLE), some of the flaws of Bluetooth technology have been improved but it still failed to become a competitive alternative of Wi-Fi. This paper presents a method of data transmission through broadcasting in BLE and demonstrates its performance, one-to-many data transfer result. The Connection-Free Data Transmission proposed in this paper will hopefully be utilized in special circumstances requiring 1:N data transmission or disaster security network.

A Study on the Quality-of-Experience in Mobile Video Adaptive Streaming under Active Bluetooth Connection (와이파이-블루투스 콤보칩 사용이 모바일 비디오 스트리밍 서비스에 미치는 영향 분석)

  • Lee, Jongho;Choi, Jaehyuk
    • Journal of IKEEE
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    • v.24 no.1
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    • pp.46-51
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    • 2020
  • With Wi-Fi and Bluetooth connectivity becoming more common in today's handheld mobile devices, single-chip multi-radio combo-modules, which integrate two or more heterogeneous wireless radios on a single chip, are becoming more and more popular. The key requirement for combo solutions is that the quality of the user experience (QoE) must not be compromised by degrading connectivity performance. Therefore, characterizing and understanding the behaviour of combo-module is of vital importance to ensure this requirement in various environments. In this paper, we investigate the impact of the use of combo-modules on the performance of mobile video streaming over a Wi-Fi network. Our study reveals that the use of combo-modules incurs considerable side effects on QoE for mobile video streaming applications when the Wi-Fi and Bluetooth operate at the same time in the 2.4GHz ISM band. We reveal that rate-based adaptive algorithms, including the most popular adaptive bitrate streaming MPEG-DASH, is more severely affected by this phenomenon than buffer-based adaptive algorithms.

블루투스 기술기준과 발전방향

  • 황준식;여경진;류충상;왕진원
    • The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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    • v.12 no.4
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    • pp.3-12
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    • 2001
  • Bluetooth stands for a technical specification for radio communication or a radio equipment that uses the Bluetooth specification of which the main purpose is to substitute the complicated communication cable of the informative device or electronic apparatus used at home or industrial fields, and was expected to be a mastermind of revolution in the short range radio communication. But the Bluetooth has recently been led to the mobile communication field which is somewhat apart from the primary purpose of Bluetooth and occur the question on its effectiveness. This paper review the situation of Bluetooth in the aspect of radio technical criteria and propose the direction for improvement of regulatory basis considering the prospection of the technical development of Bluetooth.

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The Practical Application of Bluetooth Media Technology and Outlook for Development

  • Song, Zheng-Hua;Shin, Hyun-Sik;Kim, Chun-Suk;Shin, Yun-Ho
    • The Journal of the Korea institute of electronic communication sciences
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    • v.1 no.1
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    • pp.87-93
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    • 2006
  • This is paper, with the development of computer and network communications technology, the technology of digital computer and modern communications has integrated into the field of intelligent home appliances, making them intelligentize with the function of a network information terminal. The paper introduces the Bluetooth SIG(Special Interesting Group) and the development of the standard of the Bluetooth. Researches the application model and the practical application of the Bluetooth technology, and the component elements of the Bluetooth. Finally deals with the outlook for the development of the Bluetooth technology.

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Customer Preference Analysis System using Bluetooth Low Energy (저전력 블루투스를 사용한 사용자 성향 분석 시스템)

  • Nguyen, Hieu Trong;Park, Jisun;Xi, Yulong;Park, San;Jang, Hyeonjun;Hong, Sungbin;Kim, Junoh;Cho, Kyungeun
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.1073-1074
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    • 2017
  • In this paper, we present a customer preference analysis system using the Bluetooth Low Energy technology. Compared to Classic Bluetooth, Bluetooth Low Energy provides considerably reduced power consumption, and cost, as well as some unique characteristics while maintaining a similar communication range. The customer preference analysis system collects nearby Bluetooth Low Energy devices using an Android mobile device via Bluetooth Low Energy. In addition, the system is capable of suggesting, and advertising products that are related to these Bluetooth Low Energy devices based on the name of their manufacturer. This feature aims to attract potential customers to purchase these products.

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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    • 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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Time Division Multiplexing Algorithm for Multiple Connection of Bluetooth Devices (Bluetooth 장치의 다중 접속을 위한 시분할 접속 알고리즘)

  • Cho, Kyoung-Woo;Jeon, Min-Ho;Oh, Chang-Heon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.578-580
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    • 2013
  • Recently, personal mobile devices increased according to the rise of smart devices. Thus the all smart devices load with a bluetooth of standard specifications. However, it is deficiency to service using multiple connection of bluetooth device connection limit. Also bluetooth have other problem. bluetooth can't data communication until all device connection. In this paper, we proposed multi-connect algorithm based on TDM using AT command to overcome the problems above. As a result, it is confirmed that the real-time connectivity and data transmission between multiple devices is possible.

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Building Access Control System Using MAC Address of Smart Device (Smart Device의 MAC Address를 이용한 건물 출입통제 시스템)

  • Jung, Yong-jin;Lee, Jong-sung;Oh, Chang-heon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.873-875
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    • 2014
  • In this paper, we propose the access control system based bluetooth using the MAC address of the smart device. Access control system that propose compares the smart device MAC address entry and exit and MAC address that is registered with the server. Depending on whether the match was compared, access control is performed. Result of the experiment, control of door is possible only by bluetooth pairing of the bluetooth module and smart device. Therefore, it does not require access to another tool.In addition, Action for access approval is omitted. Therefore, the access authorization procedure is simplified compared to existing access control systems, it is possible to improve the convenience.

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A Study on Interference Cancellation of Adaptive Frequency Hopping System (적응형 주파수도약 시스템의 간섭신호 제거에 관한 연구)

  • Cho, Hyun-Seob
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.10 no.5
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    • pp.396-401
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    • 2017
  • In this paper, we propose a solution for interference with Bluetooth when connecting Bluetooth and other devices. The random frequency hopping technique is a technique of generating a hopping pattern using the entire Bluetooth channel without considering the interference of the wireless LAN. The proposed adaptive frequency hopping technique is a technique for generating a hopping pattern of Bluetooth channel considering periodic carrier sensing of Bluetooth and considering WLAN interference. Simulation results show that the use of adaptive frequency hopping reduces the packet error rate as the Bluetooth carrier sensing interval decreases even in the congestion of WLAN interference. Especially, the frequency hopping technique improves the average packet error rate by about 13% compared to the adaptive frequency hopping technique.

Capacity Analysis of Bluetooth Access Point for Location Based Service with Mobile Phones and Bluetooth (휴대폰과 블루투스 기반의 LBS를 위한 블루투스 AP 용량 시뮬레이션)

  • Song, Young-Ho;Kim, In-Hwan;Shin, Soo-Young;Ahn, Hyun-Sik;Jeong, Gu-Min
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.10 no.5
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    • pp.187-192
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    • 2010
  • In this paper, we analyze and simulate the capacity of Bluetooth AP (Access Point) for LBS (Location Based Service) with mobile phones and Bluetooth. Based on the modeling of connection setup times and data transmission times, we derive the capacity model of Bluetooth AP. Moreover, we consider content size and the statistics of incoming users for the simulation. From the simulation, we derive the possible number of users with capacity of the given Bluetooth AP in order to utilize the results in the real application environment.