Adaptive Wireless Networks as an Example of Declarative Fractionated Systems

Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 131)


Adaptive wireless networks can morph their topology and support information gathering and delivery activities to follow high-level goals that capture user interests. Using a case study of an adaptive network consisting of smart phones, robots, and UAVs, this paper extends a declarative approach to networked cyber-physical systems to incorporate quantitative aspects. This is done by distinguishing two levels of control. The temporal evolution of the macroscopic system state is controlled using a logical framework developed in earlier work while the microscopic state is controlled by an optimization algorithm or heuristic. This two-level declarative approach is built on top of a partially-ordered knowledge sharing model for loosely coupled distributed computing and is an example of a so-called fractionated system that can operate with any number of wireless nodes and quickly adapt to changes. Feasibility of the approach is demonstrated simulation and in a hybrid cyber-physical testbed consisting of robots, quadcopters, and Android devices.


Cyber-physical systems Distributed systems Declarative control Adaptive networks MANETs Swarms Robots UAVs 



We thank Walter Alvarez, Kyle Leveque, and Bryan Klofas at SRI International for their contributions to building the testbed. Support from National Science Foundation Grant 0932397 (A Logical Framework for Self-Optimizing Networked Cyber-Physical Systems) and Office of Naval Research Grant N00014-10-1-0365 (Principles and Foundations for Fractionated Networked Cyber-Physical Systems) is gratefully acknowledged. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of NSF or ONR.


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Copyright information

© Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2014

Authors and Affiliations

  1. 1.SRI InternationalMenlo ParkUSA
  2. 2.Kyungpook National UniversityDaeguKorea

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