With the rapid development of wireless network technology, many existing network services have been gradually developed in the wireless network. Wireless sensor network (WSN) is a network pattern which is made up of many sensor nodes, and the collision avoidance multiple access plays an important role in the network. When the sensor nodes want to send packets simultaneous to the server vulnerable to collisions. The channel time is divided into frames with each frame containing a competition subframe and data transmission subframe. In each competition subframe is further divided into a number of mini time slots. We composed by a single function node in sensor network proposed collision avoidance multiple access protocol in simulated performance under competition in each contention subframe. Further we will propose two competition schemes for each to simulate, through a variety of different parameters under which the results of the implementation of a successful subframe infer the possibility of the slot allocations. By application of the simulation results indicate that the second scheme’s simulated data communication efficiency is better than the first scheme’s.
