Impact of mobility on energy consumption in wireless networks

초록

In this paper, we investigate the impacts of mobility on the characterization of energy consumption in wireless networks. Considering a linear wireless network deployed for an information-collecting purpose, which includes a fixed sink node and a number of mobile nodes, the analytical expressions of the energy consumption are derived for each mobile node, which either adopts multi-hop or opportunistic routing for packet transmission to the sink node. The derived expressions are applied to analyze the network lifetime. We also compare the multi-hop routing and the opportunistic routing in terms of energy consumption and network lifetime. Our results provide several insights into the interplay between mobility, routing strategy and energy consumption. Specifically, we find that a certain degree of mobility has a significant benefit to the efficient and balanced energy usage, and consequently improving the network lifetime.

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