Journal of the Korean Institute of Telematics and Electronics S (전자공학회논문지S)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Study on the Implementation of Wireless LAN MAC(medium access control) Layer for a Medical Information Transmission

의료 정보(심전도 데이터) 전송을 위한 무선 LAN MAC 계층 구현에 관한 연구

  • 류점수 (아주대학교 전기전자공학부) ;
  • 고성일 (아주대학교 전기전자공학부) ;
  • 김영길 (아주대학교 전기전자공학부)
  • Published : 1997.12.01
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Abstract

A wireless LAN medical information transmission system is useful for patients who need mobility in a local area environment. This paper proposes a method using WLAN(wireless local area network) and implements a stand-alone system with MAC(meidum access control) layer protocol referenced IEEE 802.11 draft standard. The system consists of a 8bit-microprocessor which handles media access control protocol and a WL100(GEC Plessey) chip which takes care of phsical layer specific routines and uses a RF module DE6003(GEC Plessey). The major features of the implemented system are the CSMA/CA protocol used a consecutive DATA-ACK trasmission method which yields more effective bandwidth allocation for asyncronous traffic transmission and the modified PCF protocol for time-bounded traffic transmission, which operates in ad-hoc network topology apart from IEEE 802.11 draft standard confirm PCF mode operate in infrastruture topology.

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