METHOD FOR COLLISION-FREE RANDOM ACCESS

摘要

Disclosed are a method and a system for a collision free-carrier sense multiple access (CF-CSMA) technology. One embodiment relates to a carrier sense multiple access/collision avoidance (CSMA/CA) scheme, and also to a collision free CSMA/CA scheme. According to an embodiment, a CF-CSMA scheme of a beacon enabled-CSMA based on a wireless network is disclosed. Also, for the CSMA based on a wireless network, a CF-CSMA scheme generating back-off intervals which are distributed uniformly within a distributed fashion in each of nodes is disclosed. The back-off intervals are correlated with one another among nodes without using communication among nodes. An operation method of a node associated with a wireless communication network based on beacon enabled-CSMA through an access point (AP) includes: a step of receiving a beacon including a back-off prime number and a beacon random number from the AP; and a step of generating a back-off interval based on the beacon random number, the back-off prime number, a mapped identification (ID) of the node, and a current time slot of a frame of the beacon.;COPYRIGHT KIPO 2016