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Gateway placement for latency and energy efficient data aggregation [wireless sensor networks]

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3 Author(s)
Wong, J.L. ; Dept. of Comput. Sci., California Univ., Los Angeles, CA, USA ; Jafari, R. ; Potkonjak, M.

We propose the use of multiple gateways to significantly reduce latency and energy consumption in multi-hop wireless sensor networks during data aggregation. We have derived efficient integer linear programming formulations as well as a novel negative selection statistically-tuned heuristics. The heuristics are based on newly developed relaxation based lower bounds that are also used to quantify the effectiveness of the proposed heuristics. Our simulation study indicates that the use of gateways can often reduce latency and energy consumption by several times.

Published in:

Local Computer Networks, 2004. 29th Annual IEEE International Conference on

Date of Conference:

16-18 Nov. 2004