A study on the radio protocol for ALE of digital communications in HF band

HF대 디지털통신의 ALE를 위한 무선프로토콜 연구

  • 고윤규 (목포해양대학교 해양전자통신공학부) ;
  • 최조천 (목포해양대학교 해양전자통신공학부)
  • Published : 2009.05.29

Abstract

The HF band maritime communication is have developing to digital methode that techniques should be readied the automatic link establishment of 1:N by coast station to many ship station. Because can use way by polling simply that communication environment calls particular station wicked fellow HF communication states which is much redundancy times for coast station to set link. In amateur radio particular station selective calling do to be using ALE(Automatic Link Establishment) controller by 1:1 automatic link setting way, but expect 1:N link setting by these way in maritime communication very difficult. That is difficult to avoid collision by traffic overload to induce calling of ship stations. Because HF communication considers channel special quality traffic state radio link should be established, and should be applied automatically secures stability of channel as accommodative at traffic overload. In this paper is studied the new radio protocol by 3 step sequency driving of free access, group free access and polling access using multi-tone in single channel.