Examinando por Autor "Mora Jiménez, Inmaculada"
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Ítem End-to-End Average BER in Multihop Wireless Networks over Fading Channels(2011-03-10T15:48:29Z) Morgado, Eduardo; Mora Jiménez, Inmaculada; Vinagre, Juan José; Ramos, Javier; Caamaño, AntonioThis paper addresses the problem of finding an analytical expression for the end-to-end Average Bit Error Rate (ABER) in multihop Decode-and-Forward (DAF) routes within the context of wireless networks. We provide an analytical recursive expression for the most generic case of any number of hops and any single-hop ABER for every hop in the route. Then, we solve the recursive relationship in two scenarios to obtain simple expressions for the end-to-end ABER, namely: (a) The simplest case, where all the relay channels have identical statistical behaviour; (b) The most general case, where every relay channel has a different statistical behaviour. Along with the theoretical proofs, we test our results against simulations. We then use the previous results to obtain closed analytical expressions for the end-to-end ABER considering DAF relays over Nakagami-m fading channels and with various modulation schemes. We compare these results with the corresponding expressions for Amplify-and-Forward (AAF) and, after corroborating the theoretical results with simulations, we conclude that DAF strategy is more advantageous than the AAF over Nakagami-m fading channels as both the number of relays and m-index increase.Ítem Monitoring Energy Efficiency in Buildings with Wireless Sensor Networks: NRG-WiSe Building(2012-04-04) Foche, Ignacio; Chidean, Mihaela I.; Simó Reigadas, Francisco Javier; Mora Jiménez, Inmaculada; Rojo-Álvarez, José Luis; Ramiro-Barqueño, Julio; Caamaño, Antonio J.