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Recently, the ideas of wireless Network Coding (NC) has significantly enriched the area of wireless cooperation/ relaying. They bring substantial gains in spectral efficiency mainly in scenarios with two - way relaying. Inspired by the ideas of wireless NC, recently the authors have proposed techniques for Coordinated Direct/Relay (CDR) transmissions. Leveraging on the fact that the interference can be subsequently canceled, these techniques embrace the interference among the communication flows to/from direct and relayed users. Hence, by allowing simultaneous transmissions, spectral efficiency is increased.
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