437 research outputs found
Coverage Protocols for Wireless Sensor Networks: Review and Future Directions
The coverage problem in wireless sensor networks (WSNs) can be generally
defined as a measure of how effectively a network field is monitored by its
sensor nodes. This problem has attracted a lot of interest over the years and
as a result, many coverage protocols were proposed. In this survey, we first
propose a taxonomy for classifying coverage protocols in WSNs. Then, we
classify the coverage protocols into three categories (i.e. coverage aware
deployment protocols, sleep scheduling protocols for flat networks, and
cluster-based sleep scheduling protocols) based on the network stage where the
coverage is optimized. For each category, relevant protocols are thoroughly
reviewed and classified based on the adopted coverage techniques. Finally, we
discuss open issues (and recommend future directions to resolve them)
associated with the design of realistic coverage protocols. Issues such as
realistic sensing models, realistic energy consumption models, realistic
connectivity models and sensor localization are covered
Power and Bandwidth allocation for High-Throughput Satellites using Particle Swarm Optimization
Resource allocation has always been a key issue in expensive multibeam satellite systems. In theory, dynamic allocation always gives better results than static allocation. In this work, the student will analyze different algorithms and their performance in the dynamic resource allocation of power and bandwidth in a multibeam satellite system.
Within this context, the student will implement and compare state of the art optimization algorithms in order to obtain the best possible solution of the distribution problem.Outgoin
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