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An MAC Protocol based on Code Status Sensing and Acquisition Indication in CDMA Networks
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  • An MAC Protocol based on Code Status Sensing and Acquisition Indication in CDMA Networks
  • An MAC Protocol based on Code Status Sensing and Acquisition Indication in CDMA Networks
저자명
Lim. In-Taek
간행물명
International journal of maritime information and communication sciences
권/호정보
2007년|5권 3호|pp.181-184 (4 pages)
발행정보
한국해양정보통신학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

In this paper, a CSSMA/AI MAC protocol in packet CDMA network is presented. The main features of this protocol are the code status sensing and reservation for reducing the packet collision. The base station broadcasts the code status on a frame-by-frame basis just before the beginning of each preamble transmission, and the mobile station transmits a preamble for reserving a code based on the received code status. After having transmitted the preamble, the mobile station listens to the downlink of the selected code and waits the base station reply. If this reply indicates that the code has been correctly acquired, it continues the packet transmission for the rest of the frame. If there are other packets waiting for transmission, the base station broadcasts the status of the code as reserved, and the mobile station transmits a packet on a reserved code for the successive frames.