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A Study on MAC Protocol for Packet Data Services in Next-Generation Wireless Networks  

임인택 (부산외국어대학교 컴퓨터공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.8, no.6, 2004 , pp. 1115-1120 More about this Journal
Abstract
In this paper, a CSSMA/AI MAC protocol for data services in packet CDMA network is presented. The main features of this protocol are the code status sensing and code 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 randomly selected 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 for 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.
Keywords
MAC프로토콜;슬롯 CDMA;확산코드 프로토콜;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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