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CORR
2011
Springer

Energy-Latency Tradeoff for In-Network Function Computation in Random Networks

8 years 14 days ago
Energy-Latency Tradeoff for In-Network Function Computation in Random Networks
—The problem of designing policies for in-network function computation with minimum energy consumption subject to a latency constraint is considered. The scaling behavior of the energy consumption under the latency constraint is analyzed for random networks, where the nodes are uniformly placed in growing regions and the number of nodes goes to infinity. The special case of sum function computation and its delivery to a designated root node is considered first. A policy which achieves order-optimal average energy consumption in random networks subject to the given latency constraint is proposed. The scaling behavior of the optimal energy consumption depends on the path-loss exponent of wireless transmissions and the dimension of the Euclidean region where the nodes are placed. The policy is then extended to computation of a general class of functions which decompose according to maximal cliques of a proximity graph such as the k-nearest neighbor graph or the geometric random graph....
Paul N. Balister, Béla Bollobás, Ani
Added 13 May 2011
Updated 13 May 2011
Type Journal
Year 2011
Where CORR
Authors Paul N. Balister, Béla Bollobás, Animashree Anandkumar, Alan S. Willsky
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