Method for efficient utilization of bandwidth by dynamically varied request period in reservation based MAC

摘要

to the invention using the retransmission count increases or decreases the length of the request interval bandwidth-efficient relates to the use. ; how to improve performance by adjusting the dynamic range of the request length in the medium access control of the reservation system of the invention is a beacon interval, the request interval, schedule that comprises the assignment period In the method of improving performance by dynamically adjusting the length of the interval of the request from the media access control method, comprising the steps of: the master is informed of the length and location of the request period and the assignment period from the beacon to the slave; A second step of the slave sends a request packet containing the retransmission count and the time slot request information to the master for the requested period; A third step of determining whether or not to send the request packet is the slave to the master; The fourth step is the master and the master is requesting section length in the medium access control system of the book characterized in that the length of the request interval yirueojim a fifth step of determining whether to decrease to determine whether to increase the length of the request interval The technical features of the method constituted by any of the performance improvement through the dynamic adjustment of. ; Therefore, how to improve performance by adjusting the dynamic range of the request length in the medium access control of the reservation system of the present invention retransmission count maintaining a time slot request information transmitted to the master type and the time to adjust the length of the contention period according to the network status takes the slave to receive a time slot assigned by the master of the request packet with less than a certain level, while the length of the request interval there is an effect to prevent the waste of a bandwidth caused by long more than necessary.