| Today, with the rapid development of information technology, network makes data transmission more effective. Because of the bad network environment, and the high quality requirements of information timeliness and accurate, wireless sensor networks has been widely applied to the military field, environmental monitoring and protection, medical care and other fields. As the wireless sensor network has its own characteristics, the reliability and timely of information transmission have become the two important factors to improve wireless sensor network performance, and that also have become the trend of the development of wireless sensor network.Based on the analysis and summary of existing wireless sensor network data transmission methods, we point out a new method to transmit information through the wireless sensor network. In this method, multiple description coding and network coding are combined at the multi-path transmission conditions. During the new method we proposed, the accuracy and timeliness of data transmission can be effectively improved. Finally, the conclusion of the data transmission scheme being proposed in this paper is verified with the use of simulation experiments. The main innovation of this work is reflected in:●It is proposed the data transmission scheme in the algorithm that based on the multi-path transmission, the combination of network coding and multiple description coding is applied in the wireless sensor network. The algorithm3.1is the specific binding scheme of multiple description coding and network coding, and the experimental results show that the proposed algorithm can effectively improve the data transmission reliability and validity.●The simulation experiments which is used for the proposed scheme's performance verification, the multiple description coding algorithm is improved on the bases of JPEG2000codec framework; during wireless sensor network simulation experiments, the loss rate of link is simulated by the different probabilistic link loss. |
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