%0 Conference Proceedings %T ECAR: an Energy/Channel Aware Routing Protocol For Cooperative Wireless Sensor Networks %+ Orange Labs [Lannion] %+ Département de Recherche en Ingénierie des Véhicules pour l'Environnement [Nevers] (DRIVE) %+ Ecole Nationale Supérieure d'Informatique pour l'Industrie et l'Entreprise (ENSIIE) %+ Laboratoire d'Informatique Gaspard-Monge (LIGM) %+ Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS) %+ Institut National Polytechnique (Toulouse) (Toulouse INP) %A Ben Nacef, Ahmed %A Senouci, Sidi-Mohammed %A Ghamri-Doudane, Yacine %A Beylot, André-Luc %< avec comité de lecture %( 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications ; ISBN: 978-1-4577-1346-0 %B 22nd IEEE International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC 2011) %C Toronto, Canada %I IEEE %P 964-969 %8 2011-09-11 %D 2011 %R 10.1109/PIMRC.2011.6140112 %K cooperative relaying %K biobjective routing protocol %K energy efficiency %K wireless sensor networks %Z Computer Science [cs]/Networking and Internet Architecture [cs.NI]Conference papers %X The proliferation of low power networks like Wireless Sensor Networks (WSN) rose up new challenges. Power conservation and channel quality become the most important parameters. Obviously, hop count based routing protocols are no more adapted to such networks having power limitations and channel problems. Several alternatives were suggested to cope with these constraints. In MAC layer for example, cooperative protocols were designed to enhance the channel use: the neighbor nodes help the source to retransmit its packets. However, if the path proposed by the routing protocol contains poor channels, the cooperative communications will not save all the packets. Therefore, the design of new routing protocol becomes compulsory. In this paper we propose ECAR, a routing protocol that optimizes two objectives at the same time: energy and Channel State Information (CSI). Compared to AODV, ECAR provides considerable enhancements in delivery ratio, end-to-end delay and power consumption. %G English %2 https://hal.science/hal-00808005/document %2 https://hal.science/hal-00808005/file/bennacef2011.pdf %L hal-00808005 %U https://hal.science/hal-00808005 %~ UNIV-BOURGOGNE %~ ENPC %~ UNIV-TLSE2 %~ UNIV-TLSE3 %~ CNRS %~ UNIV-MLV %~ LIGM_ALGO %~ PARISTECH %~ ENPC-LIGM %~ LIGM %~ CV_UNIV-MLV %~ CV_LIGM %~ LIGM_LRT %~ UT1-CAPITOLE %~ DRIVE %~ ESIEE-PARIS %~ IRIT %~ IRIT-RMESS %~ IRIT-ASR %~ IRIT-INPT %~ TOULOUSE-INP %~ UNIV-UT3 %~ UT3-INP %~ UT3-TOULOUSEINP