IEEE 802.15 working group established a new task group, body area network (TG-BAN), to develop short range wireless technology in and around human body recently. This paper investigates networking issues in implant communications at 2.4 GHz frequency band. The object is better understanding of medical implant networks and how and where to start TG-BAN work. We applied IEEE 802.15.4b and 802.15.4a-chirp spread spectrum (CSS) for implant communications. We derived a path loss model in the layered body and found two unique issues: clear channel assessment (CCA) of implant devices, interference from neighbor piconet in adjacent channel, and multihop long distance communication. All of them can be attributed to the rapid attenuation of electromagnetic wave through lossy tissue, which is about 30 dB more than the free space propagation. The carrier sense multiple access mechanism and transmit mask of 802.15.4b cannot be directly adopted. The modulation of 802.15.4a-CSS is robust to the interference from adjacent channel. A time division based MAC protocol should be considered by TG-BAN. Instead of routing among implant devices, a simple two-hop protocol which uses a body surface forwarder was presented and verified for long distance implant communications.
목차
Abstract 1. Introduction 2. IEEE TG-BAN and medical implants 2.1 IEEE TG-BAN 2.2 Medical implants in TG-BAN 3. Wireless medical implant communications 3.1 Related works and system overview 3.2 Analysis scenarios and assumptions 4. Radio propagation loss through layered tissue 5. Networking issues 5.1 Clear channel assessment issue 5.2 Inter-piconet interference issue 5.3 Long distance implant communications 6. Conclusion References
키워드
Body area networksimplant communicationscarrier sensemedium access control;
저자
Bin Zhen [ National Institute of Information and Communications Technology, 3-4 Hikarino-oka, Yokosuka, 239-0847, Japan ]
Huan-Bang Li [ National Institute of Information and Communications Technology, 3-4 Hikarino-oka, Yokosuka, 239-0847, Japan ]
Ryuji Kohno [ Yokohama National University, 79-5 Tokiwadai, Yokohama, 240-8501, Japan ]
보안공학연구지원센터(IJMUE) [Science & Engineering Research Support Center, Republic of Korea(IJMUE)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Multimedia and Ubiquitous Engineering
간기
월간
pISSN
1975-0080
수록기간
2008~2016
등재여부
SCOPUS
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Multimedia and Ubiquitous Engineering Vol.4 No.1