Non-Coherent Rate Splitting for the MISO BC with Magnitude CSIT

A rate splitting based scheme is proposed to operate a broadcast setting with two antennas at the transmit side and two single-antenna receiving terminals. The transmitter knows the magnitude of the channel coefficients, and it is oblivious to the phase information. Each transmit antenna, with a pow...

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Hauptverfasser: Mosquera, Carlos, Ramírez, Tomás, Caus, Màrius, Noels, Nele, Pastore, Adriano
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Sprache:eng
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Zusammenfassung:A rate splitting based scheme is proposed to operate a broadcast setting with two antennas at the transmit side and two single-antenna receiving terminals. The transmitter knows the magnitude of the channel coefficients, and it is oblivious to the phase information. Each transmit antenna, with a power constraint, sends a private message and a common message to be decoded by both receivers. An achievable rate region is obtained, which enlarges the capacity region of the vector broadcast channel with vector channel magnitude feedback by means of superposition coding.
DOI:10.48550/arxiv.1906.03863