Constrained regulation of linear continuous-time dynamical systems
Systems & Control Letters
Robust rate control for integrated services packet networks
IEEE/ACM Transactions on Networking (TON)
Social Serendipity: Mobilizing Social Software
IEEE Pervasive Computing
Communication constraints in the average consensus problem
Automatica (Journal of IFAC)
THE ALOHA SYSTEM: another alternative for computer communications
AFIPS '70 (Fall) Proceedings of the November 17-19, 1970, fall joint computer conference
Set-Theoretic Methods in Control
Set-Theoretic Methods in Control
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An enhancement to the CSMA p-persistent protocol family is proposed, based on a fully decentralized control that adjusts the message transmission rate of each node to the estimated density of surrounding transmitting nodes. The system does not require enumeration of nodes nor control messages, the only input to the control coming from the physical medium occupation. In addition to communication protocols, this technique can be used as inexpensive and efficient density estimation of physical entities in highly dynamic scenarios. Stability conditions are proposed by means of a rigorous theoretical investigation. We prove that our algorithm ensures stability even with unknown and time--varying network topologies. We show that good channel exploitation levels can be assured as well by suitably tuning the control parameters. A digital algorithm for practical implementation is proposed. The results are supported by simulation experiments.