Ilias Politis Michail Tsagkaropoulos Stavros Kotsopoulos Optimizing Video Transmission over Wireless Multimedia Sensor Networks. 117-122 2008 GLOBECOM http://dx.doi.org/10.1109/GLOCOM.2008.ECP.30 conf/globecom/2008 db/conf/globecom/globecom2008.html#PolitisTK08