한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

  • 제37권5B호
  • /
  • Pages.357-364
  • /
  • 2012
  • /
  • 1226-4717(pISSN)
  • /
  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지
DOI QR코드

DOI QR Code

VLC 시스템을 위한 협동 통신을 이용한 링크 복구 방식

Link Recovery Scheme Using Cooperative Communication for VLC System

  • 투고 : 2011.12.30
  • 심사 : 2012.04.25
  • 발행 : 2012.05.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In Visible Light Communication (VLC) system, with the limitation of transmission range and Field Of View (FOV), LOS (Line of Sight) link between two transceivers should be guaranteed due to the straightness of the visible-light signal. Especially for indoor applications, link recovery is an advantage method to remain the link connection because of the link failure in which caused by movement obstacle. Link recovery schemes try to keep link dynamically without re-initialing connection. This article proposes a new link recover scheme for VLC system by using cooperative communication. Our propose scheme focuses on the QoS reservation resource by GTS in IEEE 802.15.7 specification in which the requested QoS resource from client should be guarantee during the application time. With the link recovery scheme, we will try to continue the link connection as long as possible when unexpected disconnect link. The mathematical analysis and simulation results show that proposed scheme increases the overall reliability of the VLC system.

키워드

참고문헌

  1. IEEE Standard for local and metropolitan area neworks, "Part 15.7: Short-Range wireless optical communication using visible light," 6 september 2011.
  2. P.Liu, Z.Tao and S. Panwar, "A cooperative MAC protocol for wireless local Area Networks," IEEE Internaional Conference on Communication 2005.
  3. P. Liu, Z. Tao, S.Narayaman, T. Korakis and S.S. Panwar, "CoopMAC: A Cooperative MAC Protocol for WLANs," IEEE Journal on Selected Areas in Communication, vol. 25, no.2, February 2007.
  4. David Tung Chong Wong, Chen Khong Tham, "Burst Mode Cooperative MAC Protocol in Ad Hoc Wireless Network," Communication Systems 2008 ICCS 2008, pp 1275-1279, Nov 2008, Singapore.
  5. Y. Tanaka, T. Komine, S. Haruyama and M. Nakagawa, "Indoor Visible Light Data Transmission System Utilizing White LED Lights," IEICE Trans. Communication, vol. E86-B, pp.2440-2454, 2003.
  6. Woo-Chan Kim, Chi-Sung Bae, Soo-Yong Jeon, Sung-Yeop Pyun, and Dong-Ho Cho, "Efficient resource allocation for rapid link recovery and visibility in Visible-light local area networks", IEEE Transactions on Consumer Electronics, Vol.56, No.2, May 2010.
  7. Ying Li and Sridhar Rajagopal, "Fast and Energy-Efficient Link Recovery in Visible Light Communications," Consumer Communications and Networking Conference (CCNC), 2010 7th IEEE. Pp: 1-2, Feb 2010.
  8. Le Nam-Tuan, Choi Sunwoong, Jang Yeong Min, "Cooperative MAC protocol for LED-ID systems," ICT Convergence (ICTC) 2011, pp 144-150, Nov 2011.