Document Type thesis Author Name Skowyra, Richard William URN etd-050509-144150 Title A Centralized Energy Management System for Wireless Sensor Networks Degree MS Department Computer Science Advisors Robert Kinicki, Advisor Carolina Ruiz, Reader Keywords Fault Tolerance Clustering Wireless Sensor Networks Date of Presentation/Defense 2009-03-02 Availability unrestricted
This document presents the Centralized Energy Management System (CEMS), a dynamic fault-tolerant reclustering protocol for wireless sensor networks. CEMS reconfigures a homogeneous network both periodically and in response to critical events (e.g. cluster head death). A global TDMA schedule prevents costly retransmissions due to collision, and a genetic algorithm running on the base station computes cluster assignments in concert with a head selection algorithm.
CEMS’ performance is compared to the LEACH-C protocol in both normal and failure-prone conditions, with an emphasis on each protocol’s ability to recover from unexpected loss of cluster heads.
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