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A study on improvement of ISO/IEC 29157 MAC protocol

ISO/IEC 29157 표준 MAC 프로토콜 개선 연구

  • Received : 2013.09.30
  • Accepted : 2013.10.11
  • Published : 2013.10.31

Abstract

ISO/IEC 29157 originally developed in the Republic of Korea and is based on commercially available PicoCast v1.0. ISO/IEC JTC1 SC6 was registered by the international standard on May 2010. A single platform for a variety of applications and media formats to support development objectives were. ISO/IEC 29157 based wireless networks, ie, Pico-net to master node periodically transmit sync signal is synchronized to the number of slave nodes have the communications structure. Pico-net also supports a variety of network topologies and direct communication between nodes(single-hop communication) and QoS is guaranteed. But Pico-net network structure has the following problems. Loss of communication problems due to mobile nodes, resulting in limitations of node mobility and wireless network operation range of conventional wireless networks operating range less than 1/4 was reduced to the problem. In this paper, a possible solution to the problems mentioned is proposed, using multi-hop communication technology and sync signal transmission technology between nodes.

ISO/IEC 29157 표준은 대한민국에서 독자적으로 개발되어 상용화된 피코캐스트1.0 기술에 기반하며, 2010년 5월에 ISO/IEC JTC1 SC6에 의해서 국제표준으로 등록되었다. 개발 단계부터 단일 플랫폼으로 다양한 응용분야와 다양한 미디어 형식에 대한 지원을 목표로 개발되었다. ISO/IEC 29157 기반의 무선통신망, 즉 Pico-net은 마스터 노드가 주기적으로 송출하는 동기신호에 다수의 슬레이브 노드가 동기화되어 통신을 하는 주종관계 구조를 가진다. 또한 Pico-net은 다양한 네트워크 토폴로지를 지원하고 노드들 간의 직접통신(단일-홉 통신)을 지원하며 서비스품질 보장이 가능하다. 그러나 이러한 구조는 무선망 내의 노드 이동에 따른 통신두절 문제, 이로 인한 노드의 이동성 제한 문제 그리고 무선망 운용 범위가 통상적인 무선망 운용범위의 1/4 이하로 축소되는 문제를 노출하였다. 본 논문에서는 다중-홉(멀티-홉) 통신 기술과 노드들 간의 동기신호 전달 기술을 적용하여 앞서 언급한 문제들에 대한 해결 방안을 제시하였다. 마지막으로 ISO/IEC 29157 표준의 추가적인 개선방향에 대해서 제시하였다.

Keywords

References

  1. Binary CDMA MAC/PHY Spec.for Short-range Wireless Multiple Data Transmission, TTAS.KO-06.0157
  2. PicoCast Specification: Low Data Rate Picocast 1.0, TTAK.KO-06.0157/R1
  3. PicoCast Specification: Low Data Rate PicoCast 2.0, TTAK.KO-06.0235
  4. PicoCast Specification: multiple preamble Usage, TTAK.KO-06.0236
  5. PicoCast Specification: Interface for the 250 kbps Applications, TTAK.KO-06.0207
  6. PicoCast Specification: RF Interface, TTAK.KO-06.0208
  7. International Standard ISO/IEC 29157:"Information technology - Telecommunications and information exchange between systems - PHY/MAC specifications for short-range wireless low-rate applications in the ISM band-
  8. Ryu, Seung-Moon, Ju, Wan-Gyu, Kim, Tae-Hyeong, Jeon, Su-Hyeon, Choi, Jae-Ho, "BINARY CDMA technology, changing history", The Institute of Electronics Engineering of Korea, Journal of Telecom, vol. 23, issue 2, pp. 14-31, Feb 2007.
  9. Kim, Myeong-Jin, "Retaw-1 wireless multimedia solutions and pico-cell fusion protocol standard", The Institute of Electronics Engineering of Korea, Journal of Telecom, vol. 23, issue 2, pp. 3-13, Feb 2007.
  10. Jeong, Eui-Hoon, Cha, Bong-Sang, Ryu, Seung- Moon, "PicoCast 2.0 MAC Protocol for Personal Space Communication(PSC) Network", Conference of Korea Society of IT Service, May. 2012.
  11. Ran Park, Wu-Woan Kim, "The Routing Algorithm for Path Stability by using Mobility Information in AOMDV", Journal of Korean Institute of Information Technology Review, vol. 11, no. 1, pp. 119-126, Jan 2013.
  12. Kim, Ho-Cheol, "A Study on Improvement of Routing Performance for Wireless Mesh Networks", Journal of the Korea Academia-Industrial cooperation Society", vol.14, no.5, pp 2422-2429, 2013. https://doi.org/10.5762/KAIS.2013.14.5.2422
  13. Sue-Hyung Ha, Le The Dung, Beong-Ku An, "A Route Stability-based Direction Guided Routing Protocol in Mobile Ad-hoc Wireless Networks", Journal of the Institute of Internet, Broadcasting and Communication", vol. 12, no. 6, pp 257, Dec 2012. https://doi.org/10.7236/JIWIT.2012.12.6.257