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An energy efficient multi hop sensor network cannot avoid the energy hole problem, which is the rapid decrease in the energy of nodes around the sink. Also as a sensor network has a limited node resources and unexpected changes of external environment, its nodes should show energy efficiency, reliable data transmission, and topological adaptation to the change of external environment. This study proposes...
We are concerned with routing data in networks where the topology ranges from dense to sparse and mostly connected to mostly disconnected. Connection orientated routing algorithms developed for connected environments fail in disconnected environments, due to the instability of these networks. Similarly, forwarding strategies designed to disseminate data hop-by-hop in disconnected environments fail...
In wireless sensor networks, much research has focused on improving energy consumption and network lifetime due to limited power available on sensor nodes. The imbalance of node energy consumption results in the network partition blocking data transmission from sources to sinks. This paper proposes an efficient node deployment control protocol to achieve balanced energy consumption among sensor nodes...
In this paper, we present an energy-efficient topology control algorithm named RLSP. The algorithm first tries to preserve the minimum-energy paths. However, when a node finds it needs a large transmission power to cover some of its logical neighbors, it uses two-hop paths to reach them instead of using single links. Simulation results show that RLSP can effectively decrease the transmission power...
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