%0 Conference Proceedings %T A multi-objective genetic algorithm based approach for energy efficient QoS-routing in two-tiered Wireless Sensor Networks %A Ekbatanifard, Gholamhossein %A Monsefi, Reza %A Akbarzadeh Totonchi, Mohammad Reza %A Yaghmaee Moghaddam, Mohammad Hossein %J Wireless Pervasive Computing (ISWPC), 2010 5th IEEE International Symposium on %D 2010