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In this letter, we consider distributed beamforming (DBF) techniques for a two-way relaying network in which two sources exchange information through K intermediate relays under an aggregate power constraint. Especially, we construct a simple selective DBF that can be obtained at each relay with partial channel state information (CSI). By asymptotic analysis, the proposed selective DBF is shown to...
We consider a relay network which consists of two transceivers and r relay nodes. We study a half-duplex two-way relaying scheme. First, the two transceivers transmit their information symbols simultaneously and the relays receive a noisy mixture of the two transceiver signals. Then each relay adjusts the phase and the amplitude of its received signal by multiplying it with a complex beamforming coefficient...
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