Journal of the Korea Society of Computer and Information (한국컴퓨터정보학회논문지)

Korean Society of Computer Information (한국컴퓨터정보학회)
권호 표지
DOI QR코드

DOI QR Code

A Proposal for Improving Techniques of GTS Utilization Based on WBAN

WBAN 기반의 GTS 채널 이용률 향상기법 제안

  • Park, Joo-Hee (Dept. Medical Information System, Sahmyook Health University) ;
  • Jung, Won-Soo (Dept. of Digital Contents Faculty, Kaywon School of Art and Design)
  • 박주희 (삼육보건대학 의료정보시스템과) ;
  • 정원수 (계원디자인예술대학 디지털콘텐츠군)
  • Received : 2011.06.30
  • Accepted : 2011.07.30
  • Published : 2011.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

The WBAN(Wireless Body Area Network) technology is a short distance wireless network which provides each device's interactive communication by connecting devices inside and outside of body located within 3 meters. Standardization on the physical layer, data link layer, network layer and application layer is in progress by IEEE 802.15.6 TG BAN. The The WBAN servides consists of both medical and non-medical applications. The medical application service uses the sensor that transfer the periodic traffic and have different data rates. It uses GTS method to guarantee QoS. In this paper, a new method is proposed, which are suitable design for MAC Protocol. Firstly, MAC frame structure and a primitive based on the WBAN are proposed. Secondly, we proposed the GTS algorithm improved the channel utilization based on the WFQ(Weighted Fair Queuing). The proposed scheduling method is improved channel utilization compared with i-Game(Round Robin scheduling method).

WBAN(Wireless Body Area Network) 기술은 인체 내부 및 외부에 부착한 센서 노드를 무선으로 연결하여 통신할 수 있는 근거리 무선 통신 기술로서 IEEE 802.15.6 TG BAN을 중심으로 물리 계층, 데이터 링크 계층, 네트워크 계층 및 응용 계층 등에서 표준화가 진행되고 있다. WBAN은 응용서비스의 종류에 따라 의료용과 비의료용으로 나눌 수 있다. 의료용 응용서비스의 경우데이터 전송 특징이 주기적이고 전송률이 상이한 의료용 센서를 사용하기 때문에 데이터 전송시 QoS를 보장하기 위하여 GTS 전송방식을 사용한다. 본 논문에서는 WBAN 환경에 적합한 MAC 프로토콜을 제안하였다. 첫 번째 WBAN 기반의 슈퍼프레임 구조와 프리미티브를 제안하였다. 두 번째 WFQ(Weighted Fair Queuing)기반의 GTS 채널 이용률 향상 알고리즘을 제안하였다. 제안한 스케줄링 방식은 i-Game(라운드로빈 스케줄링 방식)과 비교하여 채널 이용률을 향상시키는 것을 알 수 있다.

Keywords

References

  1. Sunghyub Lee, Yangmoon Yoon, Dohyun Kim, "International standardization trends of WBAN in IEEE 802.15.6", Information and Communications Magazine, Vol. 25, No. 2, Feb, 2008.
  2. Sang-Jin Lee. Won-Soo Jung, Young-Hwan Oh, "A proposal for Improving Techniques of GTS Utilization on Quality of Service based on IEEE 802.15.4", The Journal of Korea Information and Communications Society, Vol. 35, No. 6, pp.163-169, June. 2010.
  3. Weeyeon Kim, Dae-Young Kim, Sangbae Shin, Jinsung Cho "Environment Adaptive WBAN Routing based on Residual energy", The Korea Society of Computer and Information, Vol. 16, No. 1, pp.89-99, Janu. 2011. https://doi.org/10.9708/jksci.2011.16.1.089
  4. Bin Zhen, Huan-Bang Li, and Ryuji Kohno, "IEEE Body Area Networks and Medical Implant Communicatioins," BodyNets2008, pp.24-35, 2008.
  5. Dae-Young Kim, Jinsung Cho, "WBAN meets WBAN: Smart Mobile Space over Wireless Body Area Networks," BTC 2009-Fall, IEEE 70th, pp.1-5, Sep, 2009
  6. IEEE Standard for Information technology-Telecommunications and information exchange between systems- Local and metropolitan area networks- Specific requirements Part 15.4 Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (WPANs), 2006
  7. H. B. Li, K. Takizawa, B. Zhen, and R. Kohno, "Body Area Network and Its Standardization at IEEE 802.15.MBAN," 16th IST Mobile and Wireless Communications Summit, 2007.
  8. T.Zasowski, F.Althaus, M.Stager, A.Wittneben, G.Troster, "UWB for Noninvasive Wireless Body Area Network: Channel Measurements and Results," IEEE Conf. Ultra Wideband Systems and Technologies, pp.285-289, Nov. 2003.
  9. Anis KOUBAA, Mario ALVES, Eduardo TOVAR, "GTS Allocation Analysis in IEEE 802.15.4 for Real-Time Wireless Sensor Networks," WPDRTS'06, special track on WSNs, 2006.
  10. Anis KOUBAA, Mario ALVES, Eduardo TOVAR, "I-GAME: An Implicit GTS AllocationMechanismin IEEE 802.15.4 for Time-Sensitive Wireless Sensor Networks," ECRTS'06, 2006.