Abstract:This paper considers a two-way relay network (TWRN) with two sources and one relay node, where each source is equipped with a single antenna, while the relay node is equipped with a large number of antennas. We propose two low-complexity physical-layer differential network coding schemes for such TWRNs, namely, Superimposition Coding based Differential Beamforming (SC-DBF) and Decode-and-Forward based Differential Beamforming (DF-DBF). In the proposed schemes, no Channel State Information (CSI) is required at … Show more
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