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Cooperative diversity (CD) is an effective technique to exploit the spatial diversity offered by wireless relay nodes. However, since the cooperating terminals typically use orthogonal channels for transmission to simplify processing at the relays and the destination, CD entails a throughput reduction [1, 2]. This throughput reduction is most noticeable in CD systems with multiple source terminals since in such systems the relays use separate orthogonal channels to forward the signals received from different sources.
VFAST Transactions on Software Engineering
Comparison of Cooperative Diversity Protocols in Various Relay Locations through Network Coding2015 •
2008 •
Cooperative diversity represents a new class of wireless communication techniques in which network nodes help each other in relaying information to realize spatial diversity advantages. This new transmission paradigm promises significant performance gains in terms of link reliability, spectral efficiency, system capacity, and transmission range. Cooperative diversity has spurred tremendous excitement within the academia and industry circles since its introduction and has been extensively studied over the last few years.
Eurasip Journal on Wireless Communications and Networking
Multiuser Cooperative Diversity for Wireless Networks2006 •
2008 •
Abstract We consider an amplify-and-forward (AF) cooperative diversity system where a source node communicates with a destination node directly and indirectly (through multiple relays). In regular multiple-relay cooperative diversity systems, all relay nodes relay the source signal using orthogonal channels (time slots, carriers, or codes) to avoid cochannel interference. Hence, for a regular cooperative diversity network with M relays, we need M+ 1 channels (one for the direct link and M for the M indirect links).
2010 •
Abstract In this paper, we study network-coded cooperative diversity (NCCD) systems comprising multiple sources, one relay, and one destination. The relay detects the packets received from all sources and performs Galois field network coding. We propose a simple cooperative maximum-ratio combining scheme for the destination which is shown to achieve the maximum diversity gain of the system.
2008 •
Abstract In this paper, we investigate the performance of a single-relay cooperative scenario where the source, relay and destination terminals are equipped with multiple transmit/receive antennas. We assume that conventional space-time block codes are employed in the underlying source-to-destination (SrarrD), source-to-relay (S rarr R) and relay-to-destination (R rarr D) links, and consider both decode-and-forward (DaF) and amplify-and-forward (AaF) relaying techniques.
os rostros de Jano. Ensayo sobre San Agustín y la sofística cristiana
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Préface à l'ouvrage de Luis E. BACIGALUPO, Les visages de Janus. Essai sur saint Augustin et la sophistique chrétienne
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Popular and Concert Music in Brazil in the Late 19th and Early 20th CenturyThomasine Traditions in Antiquity
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