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This paper presents a novel heuristic multi-criteria tool capable of generating open-access wireless network deployments by exploiting the existing broadband infrastructure. Specifically, an external user dynamically selects, by virtue of our proposed scheme, a certain network layout depending on the target percentage of non-covered users and cost of the deployment. Network layouts differently balancing...
This paper presents a novel resource allocation procedure for OFDMA downlinks, which stems from an hybridization of the Harmony Search and the Differential Evolution heuristic algorithms. In this setup it is known that optimum subcarrier and power allocation is achieved through 1) assigning each subcarrier to the user with highest channel gain at the given frequency, and 2) a Water-Filling procedure...
This paper outlines the application of the heuristic Harmony Search (HS) algorithm for efficient spectrum allocation in cognitive radio networks under a minimum Bit Error Rate (BER) criterion. Our proposed algorithm provides a higher degree of diversity in the search process by virtue of its particular improvisation procedure, as opposed to evolutionary computation techniques used so far for this...
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