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In this paper we investigate the performance of a 2-relay cooperative scheme, where all the nodes are equipped with a single antenna. We consider Decode-and-Forward as relaying protocol and a distributed space-frequency block is employed. Two schemes are proposed: one with and another without the direct path available. Signals expressions are derived under(More)
The aim of this paper is to propose and assess the performance of cooperative schemes designed for the uplink OFDM based systems with mobile relays with an antenna array. We consider the use of an antenna array at the base station and a single antenna at the user terminal. We compare the situations at which the relay is equipped with one or two antennas. We(More)
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