Application research on network coding in WSN

This paper introduces the characteristics of the wireless network, including self-organizing, dynamic topology, wireless communications and so on, which make the network nodes have limited energy, the same as processing power, storage capacity and communication capabilities, therefore, the efficient use of energy, maximizing its network cycle is the wireless sensor network´s core issue. Network coding integrates the concept of routing and coding, which has been proven to be able to approach the theoretical transfer limit of the network capacity. The unreliability of wireless link and the broadcasting characteristics of physical layer are ideal for the use of network coding. This paper reviews the applications of network coding technology in wireless sensor network, including improving network throughput, reducing energy consumption, increasing the reliability and security of the network link, and improving the efficiency of data aggregation.