On optimal relay placement and sleep control to improve energy efficiency in cellular networksJan 1, 2011·Sheng Zhou,A. GoldsmithZhisheng Niu· 0 min read CiteLast updated on Jan 1, 2011AuthorsSheng ZhouAssociate ProfessorAuthorsZhisheng NiuProfessor← Multi-hop relay network for base station energy saving and its performance evaluation Jan 1, 2011Queuing on energy-efficient wireless transmissions with adaptive modulation and coding Jan 1, 2011 →