Distributed video coding in wireless sensor networks

R. Puri, A. Majumdar, P. Ishwar, K. Ramchandran
2006 IEEE Signal Processing Magazine  
Exploiting the spatiotemporal redundancy in broadband networks ] T he vision of miniaturized computers, decked with tiny batteries, sensors, and radios, organizing themselves tetherlessly to efficiently and reliably perform complex tasks, considered unimaginable a few years ago, is no longer just a vision. It is rapidly evolving into the reality of sensor networks. Today, we are asking these networks to help us in innumerable ways. These range from detecting chemical leaks to tracking children
more » ... n Disneyland, from monitoring factory inventories and managing company assets to even probing the ecosystem at unprecedented spatial scales. The rich application space addressed by these so-called first-generation sensor networks has understandably gotten us excited. The ability to throw a bunch of lightweight sensing devices into an arena of interest, and to reliably and efficiently monitor (and sometimes even control) sensing modalities like light intensity, temperature, pressure, chemical concentration, and magnetization, is indeed of great value. Most of these sensing modalities correspond to low data-rate signals. Indeed, this is tough enough given the daunting challenges posed by energy management, wireless interference,
doi:10.1109/msp.2006.1657820 fatcat:yqryib4m5rgbtoscx3ef7i5tte