Erman Ayday Farshid Delgosha Faramarz Fekri Location-Aware Security Services for Wireless Sensor Networks Using Network Coding. 1226-1234 2007 conf/infocom/2007 INFOCOM http://dx.doi.org/10.1109/INFCOM.2007.146 db/conf/infocom/infocom2007.html#AydayDF07