The Generalized Degrees-of-Freedom of the Asymmetric Interference Channel with Delayed CSIT

Zhang，Tong1; Zhuang，Yufan1; Xu，Yinfei2

10.1109/ISIT50566.2022.9834455

2022

2157-8095

978-1-6654-2160-7

IEEE International Symposium on Information Theory - Proceedings

2022-June

3067-3072

26 June-1 July 2022

Espoo, Finland

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.

Delayed CSIT interference channel sum-GDoF

第一

英语

EI

China Postdoctoral Science Foundation[2021M691453];National Natural Science Foundation of China[61901105];National Natural Science Foundation of China[62171119];Natural Science Foundation of Jiangsu Province[BK20190343];

20223512624666

Channel state information ; Degrees of freedom (mechanics) ; Signal interference ; Transmitters

Information Theory and Signal Processing:716.1 ; Mechanics:931.1

2-s2.0-85136308926

Scopus

1.Southern University of Science and Technology,Department of Electrical and Electronic Engineering,Shenzhen,China
2.Southeast University,School of Information Science and Engineering,Nanjing,China

Zhang，Tong,Zhuang，Yufan,Xu，Yinfei. The Generalized Degrees-of-Freedom of the Asymmetric Interference Channel with Delayed CSIT[C],2022:3067-3072.