Adaptive Image Compression and Decomposition Transmission Strategy Based on Lifting Wavelet in MWSN

Abstract

Transmission quality of image in multimedia wireless sensor networks (MWSN) is affected seriously by network bandwidth. It proposes a novel adaptive image compression and decomposition transmission strategy (AICDTS) to assure the Quality of Service (QoS) in image transmission when the wireless network speed changes, In AICDTS, the important information such as position and shape collected by the monitor nodes in MWSN is transmitted preferentially, and the less important information such as the size and pixel (or grayscale) of an image is served as Best Effort (BE), with different image compression ratio corresponding to different network speed in transmission. Simulation results show that the balance between the image quality and energy consumption can be well realized by AICDTS.