Optimization of Mobility Control in Mobile Wireless Networks for Energy Saving

In this paper, we consider a multi-hop wireless relay neworks, in which the source node and destination node have fixed location while we can control the positions of the relay nodes. Some strategies to control positions of relay nodes to minimize energy consumption of transmission from sources to sinks is introduced and analyzed. Three different cases were investigated, including networks with single flow, networks with multiple flows, and networks with coverage constraints for the relay nodes. The most contribution of this paper is providing simple localized algorithms for relay nodes, yet optimize the energy consumption problem. The analysis is also confirmed by numerical results.