Randeep Bhatia Abhishek Kashyap Erran L. Li The Power Balancing Problem in Energy Constrained Multi-Hop Wireless Networks. 553-561 2007 conf/infocom/2007 INFOCOM http://dx.doi.org/10.1109/INFCOM.2007.71 db/conf/infocom/infocom2007.html#BhatiaKL07