Ergodic Interference Alignment With Delayed Feedback

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Myung Gil Kang, Wan Choi

Published: 2013, Last Modified: 13 May 2025IEEE Signal Process. Lett. 2013EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: We propose new ergodic interference alignment techniques for K-user interference channels with delayed feedback. Two delayed feedback scenarios are considered - delayed channel information at transmitter (CIT) and delayed output feedback. It is proved that the proposed techniques achieve total 2K/(K+2) DoF which is higher than that by the retrospective interference alignment for the delayed feedback scenarios.