The Generalized Degrees-of-Freedom of the Asymmetric Interference Channel with Delayed CSIT
Information Theory
2022-05-04 v2 math.IT
Abstract
In this paper, we investigate the generalized degrees-of-freedom (GDoF) of the asymmetric interference channel with delayed channel state information at the transmitter (CSIT), where each transmitter has two antennas, each receiver has one antenna, and the strength for each interfering link can vary. The optimal sum-GDoF is characterized by matched converse and achievability proof. Through our results, we also reveal that in our antenna setting, the symmetric GDoF lower bound in [Mohanty et. al, TIT 2019] can be elevated, and the symmetric GDoF upper bound in [Mohanty et. al, TIT 2019] is tight in fact.
Keywords
Cite
@article{arxiv.2204.11249,
title = {The Generalized Degrees-of-Freedom of the Asymmetric Interference Channel with Delayed CSIT},
author = {Tong Zhang and Yufan Zhuang and Yinfei Xu},
journal= {arXiv preprint arXiv:2204.11249},
year = {2022}
}
Comments
Accepted by IEEE ISIT 2022