Based On The Decomposition Of P Binary Tree Conflict Detection And 1 Stick Joint Control Access Protocol

With the development of communication networks, wireless sensor network (WSN) has been widely used.Wireless sensor networks are connected by means of wireless network, it can can be configure and manage on their own terms. It combines sensor, information processing and network communication technology, it is also a new field of information technology. Wireless sensor network has the function of data acquisition, processing and transmission s. Its low-power, low-cost, distributed and self-organizing features make it a wide range of applications. The development of wireless sensor networks was first originated in military applications such as battlefield detection, now wireless sensor is used in civilian monitoring.Random multiple access control protocol is an important access control protocol. It is widely used in satellite communications systems, local area and computer networks and other communication systems. However, due to the random multiple access, users send information through randomly using channel independently, when there is more than one client at the same time to send the information packet, will inevitably lead to the occurrence of channel conflict. In this regard, the researchers do constant research and improvement. Whether the classic ALOHA random multiple access or CSMA random multiple access technology with the carrier sense function, cannot avoid the channel information packet collisions. Therefore, designing conflict decomposition technique is particularly important, exploding the conflicted information packet, can improve the probability of information packets transmitted successfully, and to improve channel utilization.Based on random multiple access and collision resolution technology, combine these two protocol effectively, puts forward a new random multi-access access agreement-binary tree conflict decomposition algorithm combined with probability detection and1-persistent access policy.Under the agreement, terminal use P detection and1-persistent CSMA detective algorithm to detect channel before sending the information packet, if the channel is free. The terminal begins to transmit data immediately; if the channel is busy, the packet is decomposed by using binary tree conflict decomposition algorithm. After decomposition is over, the packet is transmitted. the technology decomposition conflict with the decomposition is complete, the packets are transmitted. This paper sets up the mathematical model of the agreement by using the average cycle method, undergo a rigorous mathematical derivation, we obtain the mathematical expression of throughput of the system. Finally, through the MATLAB simulation experiment, combine with experimental results to analyze the performance of the agreement, show the validity of the agreement.