Genetic programming (videotape): the movie
Genetic programming (videotape): the movie
Wireless integrated network sensors
Communications of the ACM
Introduction to algorithms
Multi-Objective Optimization Using Evolutionary Algorithms
Multi-Objective Optimization Using Evolutionary Algorithms
Computers and Intractability: A Guide to the Theory of NP-Completeness
Computers and Intractability: A Guide to the Theory of NP-Completeness
Hardness Results for the Power Range Assignmet Problem in Packet Radio Networks
RANDOM-APPROX '99 Proceedings of the Third International Workshop on Approximation Algorithms for Combinatorial Optimization Problems: Randomization, Approximation, and Combinatorial Algorithms and Techniques
Strong Minimum Energy Topology in Wireless Sensor Networks: NP-Completeness and Heuristics
IEEE Transactions on Mobile Computing
Introduction to Statistical Methods and Data Analysis (with CD-ROM)
Introduction to Statistical Methods and Data Analysis (with CD-ROM)
Wireless sensor network survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
A Reliable Energy Efficient Algorithm for Target Coverage in Wireless Sensor Networks
ICDCSW '10 Proceedings of the 2010 IEEE 30th International Conference on Distributed Computing Systems Workshops
IEEE Communications Magazine
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The use of wireless sensor networks has been increased substantially. One of the main inconveniences of this kind of networks is the energy efficiency; for this reason, there are some works trying to solve it. Traditionally, these networks were only composed by sensors, but now auxiliary elements called routers have been included to facilitate communications and reduce energy consumption. In this work, we have studied the inclusion of routers in a previously established traditional wireless sensor network in order to increase its energy efficiency, optimizing lifetime and average energy effort. For this purpose, we have used two multi-objective evolutionary algorithms: NSGA-II and SPEA-2. We have done experiments over various sceneries, checking by means of statically techniques that SPEA-2 offers better results for more complex instances.