Wireless network collision-avoiding channel access control method based on distance partitions

The invention provides a wireless network collision-avoiding channel access control method based on distance partitions. Self-partition of each node is judged according to a retrievable distance parameter, the total number of the active nodes is estimated and the length of time is computed, then competition window values are computed to estimate the node number of the adjacent upper and lower partitions and the self-partition, finally the competition window values are dynamically selected according to the self-sending state and the node number in the adjacent distance partitions and backoff time is computed, and a wireless channel is accessed according to the backoff time. According to the wireless network collision-avoiding channel access control method based on the distance partitions, the collision rate can be effectively reduced to finally achieve non-collision transmission, the method is suitable for fully loaded networks with single top non-hidden terminals of different sizes, the throughput of the network can be effectively improved, and the delay of the network can be reduced.