Alberto Jimenez-Pacheco

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—This paper describes the implementation and cha-racterisation of a mobile ad-hoc network (MANET) of ultra-light intelligent flying robots. The flying nature of the network makes it suitable to collect or disseminate content in urban areas or challenging terrain, where line-of-sight connection between the Micro Air Vehicles (MAVs) allows for more efficient(More)
Multi-carrier code division multiple access (MC-CDMA) and space-time block coding (STBC) are two promising techniques to fulfill the high-speed and spectral efficiency requirements of fourth generation mobile communication systems. In this contribution we present an iterative receiver for the downlink of STBC MC-CDMA systems, that aims to mitigate the(More)
in conjunction with SenseFly (a LIS spin-off) recently started a project aimed at developing a testbed to experiment with self-organized wireless networks carried by autonomous unmanned aircrafts. The idea is to use drones developed by SenseFly to carry the infrastructure of a self-organized WiFi network for easy and rapid deployment. The network can be(More)
—In this paper, we present a flexible architecture for an LDPC decoder that fully exploits the structure of the codes defined in the DVB-T2 standard (Digital Video Broadcasting-Second Generation Terrestrial). We propose a processor and memory architecture which uses the flooding schedule and has no memory access conflicts, which are encountered in serial(More)
Future 4th Generation (4G) wireless multiuser communication systems will have to provide advanced multimedia services to an increasing number of users, making good use of the scarce spectrum resources. Thus, 4G system design should pursue both higher-transmission bit rates and higher spectral efficiencies. To achieve this goal, multiple antenna systems are(More)
In this paper we address the implementation on FPGAs of a 4G equaliser for a multiple-input multiple-output (MIMO) receiver. It is embedded in a multi-carrier code-division multiple-access (MC-CDMA) radio system, which is able to handle up to 32 users and provide transmission bit-rates up to 125 Mbps. We provide details on decisions taken for the design of(More)
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