Combination of analog network coding and compressed sensing in clustered chain-type topology

摘要

Transmission in wireless sensor network (WSN) is energy intensive and time consuming. To solve this problem, combination of Analog Network Coding (ANC) and Compressed Sensing (CS) scheme is proposed to save transmission and time slots cost (TSC) in chain-type topology. In this paper, the WSN is divided into many rectangular areas. Then each rectangular area is divided into many clusters, and head nodes of these clusters form the chain-type topology which can take full advantage of the combination of ANC and CS scheme. Analysis and simulations show that with effective partition of clusters, our scheme can achieve perfect transmission and TSC performances with little loss, and it can save transmission and TSC by a factor of more than 10 when compared with other schemes in our simulation. Besides, our scheme is much more energy-saving and lifetime of our scheme outperforms the contrastive schemes.