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This paper evolves a 2.4GHz microstrip antenna for WiFi application by using the differential evolution (DE). The antenna structure is square substrate with a size of 50mm×50mm×1.6mm. The bottom side of the substrate is printed with a microstrip feed line. The top is metallic painted where a ellipse cut off. The structure is parameterized as a solution vector, and the requirements of the antenna are...
This paper proposes an efficient optimization algorithm to dynamically control the Evolved Packet System (EPS) bearer rates to transport various services between the UE and Evolved Packet Core (EPC) in a LTE Femtocell network scenario. The algorithm is focused on improving the accumulated QoE in the networks and takes joint consideration of limited radio and transport resource so as to leverage the...
Since memory accounts for a large and increasing fraction of the energy consumed by computers, memory manufacturers have developed memory devices with different power/work modes. For taking full advantage of these modes, more and more creditable hardware or software power mode control algorithms have been proposed. In this paper, by analyzing the effects of power mode control polices on different...
In order to fully utilize spectrum, auction-based dynamic spectrum access has become a promising approach which allows unlicensed wireless users to lease unused bands from spectrum license holders. Traditionally, the property of spectrum goes to a unique winner with the highest bid after the auction, and the bidders with low bids would be probably not served. This also may result in spectrum resource...
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