Study on Effective Transmission Scheme Based on Fountain Codes in Wireless Multimedia Sensor Network

Abstract

Abstract-Wireless Multimedia Sensor Network (WMSN) achieves the multimedia information from the distributed sensor nodes. In this paper, we design a transmission scheme to ensure the efficient and reliable data transmission in WMSN. Firstly, LT codes are employed as the channel coding. A method is proposed to optimize the degree distribution for LT codes based on Binary Exponential Distribution (BED) and Bird Swarm Algorithm (BSA) to improve both the decoding efficiency and successful decoding rate. Moreover, aiming at the spatial and temporal redundancy of the node information, we try to study the cooperative information processing method with distributed compressed sensing and image fusion to improve the efficiency of data transmission and the quality of the images. Simulation results show that the proposed transmission scheme can solve the bottleneck problem of the efficient and reliable transmission in the WMSN.