title: Network modeling and energy-efficiency optimization for advanced machine-to-machine sensor networks.
abstract: Wireless machine-to-machine sensor networks with multiple radio interfaces are expected to have several advantages, including high spatial scalability, low event detection latency, and low energy consumption. Here, we propose a network model design method involving network approximation and an optimized multi-tiered clustering algorithm  that maximizes node lifespan by minimizing energy consumption in a non-uniformly distributed network. Simulation results show that the cluster scales and network parameters determined with the proposed method facilitate a more efficient performance compared to existing methods.
authors.affiliation: Department of Multimedia, Hannam University, Daejeon 306-791, Korea. sungmoj@gmail.com
authors.forename: Sungmo
authors.initials: S
authors.lastname: Jung
authors.forename: Jong Hyun
authors.initials: JH
authors.lastname: Kim
authors.forename: Seoksoo
authors.initials: S
authors.lastname: Kim