Markov Model Research Of Wireless Sensor Network Reliability Analysis

With the rapid development of wireless technology matures, wireless communication is getting widely used in society and people’s daily life. Wireless sensor network formed by a large number of sensor nodes, these nodes are usually provided in a variety of topologies in the monitoring area, including a processor and a database or connected to, information for monitoring, receive, transmit and process, a high degree of sensitivity and effective.Wireless sensor network nodes generally use battery power, the working environment is often quite poor, but the large number of nodes, data traffic so vast, low-power wireless sensor networks is one of the most important design criteria.Firstly, the state of the wireless sensor network nodes are classified and get node state transition transition matrix, considering the node state transition stabilized after the first node is given the general expression of the energy consumed in the detailed analysis of the node data traffic sources, based on the use mathematical formula to be specific qualitative description of the problem, and finally, the node energy consumption is given full expression. CSMA-based transport mechanism in case of conflict of data packets, consider the case of idle time slot selected, given hop node during the transmission success probability of transmission and expression of the idle state, combined with the packet data transmission composition, to obtain the energy efficiency of data transmission node model.As used herein, the created model matlab numerical result analysis of different locations in the network nodes in the data flow and changes in model parameters, the CSMA transport mechanism, the effects of the number of time slots to nodes of different energy, the data successful transmission rate implications.