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    Achievable Rates of Buffer-Aided Full-Duplex Gaussian Relay Channels

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    08070941.pdf (5.727Mb)
    Date
    2017
    Author
    El Shafie, Ahmed
    Sultan, Ahmed
    Krikidis, Ioannis
    Al-Dhahir, Naofal
    Hamila, Ridha
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    Abstract
    We derive closed-form expressions for the achievable rates of a buffer-aided full-duplex (FD) multiple-input multiple-output Gaussian relay channel. The FD relay still suffers from residual self-interference (RSI) after the application of self-interference mitigation techniques. We investigate both cases of a slow-RSI channel where the RSI is fixed over the entire codeword, and a fast-RSI channel where the RSI changes from one symbol duration to another within the codeword. We show that the RSI can be completely eliminated in the slow-RSI case when the FD relay is equipped with a buffer while the fast RSI cannot be eliminated. For the fixed-rate data transmission scenario, we derive the optimal transmission strategy that should be adopted by the source node and relay node to maximize the system throughput. We verify our analytical findings through simulations. 1 2017 IEEE.
    DOI/handle
    http://dx.doi.org/10.1109/ACCESS.2017.2764079
    http://hdl.handle.net/10576/16420
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    • Electrical Engineering [‎2840‎ items ]

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