Data aggregation technologies of wireless multimedia sensor networks: A survey

Abstract

The advance in CMOS camera and wireless sensor network (WSN) has promoted the development of wireless multimedia sensor network (WMSN), which can collect more abundant video data and image data. One important enabling technology for WMSN is data aggregation, which is essential for WMSN to be reusable and cost-efficient. The data aggregation technologies can be divided into three parts, namely, data acquisition, data transmission and data processing. This paper presents the state of the art in data aggregation of WMSN according to this category.