NDLI: Computation in networks of passively mobile finite-state sensors

Content Provider	ACM Digital Library
Author	Diamadi, Zoë Peralta, René Angluin, Dana Aspnes, James Fischer, Michael J.
Abstract	We explore the computational power of networks of small resource-limited mobile agents. We define two new models of computation based on pairwise interactions of finite-state agents in populations of finite but unbounded size. With a fairness condition on interactions, we define the concept of stable computation of a function or predicate, and give protocols that stably compute functions in a class including Boolean combinations of threshold-k, parity, majority, and simple arithmetic. We prove that all stably computable predicates are in NL. With uniform random sampling of pairs to interact, we define the model of conjugating automata and show that any counter machine with O(1) counters of capacity O(n) can be simulated with high probability by a protocol in a population of size n. We prove that all predicates computable with high probability in this model are in P ∩ RL. Several open problems and promising future directions are discussed.
Starting Page	290
Ending Page	299
Page Count	10
File Format	PDF
ISBN	1581138024
DOI	10.1145/1011767.1011810
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2004-07-25
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Finite-state agent Diffuse computation Intermittent communication Mobile agent Sensor net Stable computation
Content Type	Text
Resource Type	Article

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Computation in networks of passively mobile finite-state sensors