公开(公告)号：KR100813884B1

公开(公告)日：2008-03-18

申请号：KR1020060098416

申请日：2006-10-10

Applicant: 전자부품연구원

Inventor： 황태호 ,  원광호 ,  안일엽 ,  송민환 ,  박홍성 ,  전영호 ,  이광국

IPC: H04L12/28 ,  H04B7/26

CPC classification number: Y02D70/10 ,  H04W74/0816 ,  H04L1/0001 ,  H04W84/10

Abstract: A media access method based on probability supporting priority and a computer-readable medium recording a program for implementing the same are provided to calculate media access probability by using a sampling time and a beacon interval or calculate subdivided media access probability on the basis of node identification information to add priority to data, thereby reducing collision possibility, reducing power consumption, and preventing the transmission delay of data with higher priority. A media access method based on probability supporting priority comprises the following steps of: setting each parameter for CSMA/CA(Carrier Sense Multiple Access/Collision Avoidance)(S210); setting the priority of media access on the basis of a sampling time and a beacon interval(S220,S230); performing random backoff and CCA(Clear Channel Assignment)(S250,S260); updating the parameter when a medium is not used and determining whether data transmission is appropriate(S290); and performing the transmission of data on the basis of the priority when it is determined that the data transmission is appropriate(S300).

Abstract translation: 提供了基于概率支持优先级的媒体访问方法和记录用于实现其的程序的计算机可读介质，以通过使用采样时间和信标间隔来计算媒体访问概率，或者基于节点标识来计算细分媒体访问概率 增加数据优先级的信息，从而降低了冲突的可能性，降低了功耗，防止了具有较高优先级的数据的传输延迟。 基于概率支持优先级的媒体访问方法包括以下步骤：设置CSMA / CA（载波侦听多路访问/冲突避免）的每个参数（S210）; 基于采样时间和信标间隔设置媒体接入的优先级（S220，S230）; 执行随机退避和CCA（清除信道分配）（S250，S260）; 当不使用介质时更新参数并确定数据传输是否合适（S290）; 以及当确定数据传输合适时，基于优先级执行数据传输（S300）。