Degrees of freedom of three-user SISO interference channels under hybrid CSI at the transmitters

Kushal Anand; Erry Gunawan; Yong Liang Guan

doi:10.1109/ICICS.2015.7459956

Degrees of freedom of three-user SISO interference channels under hybrid CSI at the transmitters

Kushal Anand, Erry Gunawan, Yong Liang Guan

Nanyang Technological University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, we consider the degrees of freedom (DoF) of the three-user single-input-single-output interference channel (SISO-IC) with independent and identically distributed (i.i.d.) fading across antennas and channel uses and under hybrid channel state information (CSI) at the transmitters. Hybrid CSI implies that delayed CSI of the whole network is available to all the transmitters whereas only local instantaneous CSI is available to each transmitter which is obtained through feedback from its own receiver. We show that a DoF of 6/5 can be attained for this scenario which is greater than the existing results on completely delayed CSI feedback scenario. Further, the local instantaneous CSIT needs to be available only for 20% of the total transmission time. In other words, the CSIT in our scheme can be delayed up to 80% of the channel coherence time. Also, the message for every user is completely private, i.e., any part of it cannot be decoded by any unintended user.

Original language	English
Title of host publication	2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781467372183
DOIs	https://doi.org/10.1109/ICICS.2015.7459956
Publication status	Published - Apr 26 2016
Externally published	Yes
Event	10th International Conference on Information, Communications and Signal Processing, ICICS 2015 - Singapore, Singapore Duration: Dec 2 2015 → Dec 4 2015

Publication series

Name	2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015

Conference

Conference	10th International Conference on Information, Communications and Signal Processing, ICICS 2015
Country/Territory	Singapore
City	Singapore
Period	12/2/15 → 12/4/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

ASJC Scopus Subject Areas

Computer Networks and Communications
Information Systems
Signal Processing

Keywords

Degrees of freedom
delayed CSIT
hybrid CSIT
interference alignment
Interference channels
SISO

Access to Document

10.1109/ICICS.2015.7459956

Cite this

Anand, K., Gunawan, E., & Guan, Y. L. (2016). Degrees of freedom of three-user SISO interference channels under hybrid CSI at the transmitters. In 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015 Article 7459956 (2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICICS.2015.7459956

Anand, Kushal ; Gunawan, Erry ; Guan, Yong Liang. / Degrees of freedom of three-user SISO interference channels under hybrid CSI at the transmitters. 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015. Institute of Electrical and Electronics Engineers Inc., 2016. (2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015).

@inproceedings{1528818be5d64b8fa5bcf0fd9573aa3d,

title = "Degrees of freedom of three-user SISO interference channels under hybrid CSI at the transmitters",

abstract = "In this paper, we consider the degrees of freedom (DoF) of the three-user single-input-single-output interference channel (SISO-IC) with independent and identically distributed (i.i.d.) fading across antennas and channel uses and under hybrid channel state information (CSI) at the transmitters. Hybrid CSI implies that delayed CSI of the whole network is available to all the transmitters whereas only local instantaneous CSI is available to each transmitter which is obtained through feedback from its own receiver. We show that a DoF of 6/5 can be attained for this scenario which is greater than the existing results on completely delayed CSI feedback scenario. Further, the local instantaneous CSIT needs to be available only for 20% of the total transmission time. In other words, the CSIT in our scheme can be delayed up to 80% of the channel coherence time. Also, the message for every user is completely private, i.e., any part of it cannot be decoded by any unintended user.",

keywords = "Degrees of freedom, delayed CSIT, hybrid CSIT, interference alignment, Interference channels, SISO",

author = "Kushal Anand and Erry Gunawan and Guan, {Yong Liang}",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 10th International Conference on Information, Communications and Signal Processing, ICICS 2015 ; Conference date: 02-12-2015 Through 04-12-2015",

year = "2016",

month = apr,

day = "26",

doi = "10.1109/ICICS.2015.7459956",

language = "English",

series = "2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015",

address = "United States",

}

Anand, K, Gunawan, E & Guan, YL 2016, Degrees of freedom of three-user SISO interference channels under hybrid CSI at the transmitters. in 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015., 7459956, 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015, Institute of Electrical and Electronics Engineers Inc., 10th International Conference on Information, Communications and Signal Processing, ICICS 2015, Singapore, Singapore, 12/2/15. https://doi.org/10.1109/ICICS.2015.7459956

Degrees of freedom of three-user SISO interference channels under hybrid CSI at the transmitters. / Anand, Kushal; Gunawan, Erry; Guan, Yong Liang.
2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015. Institute of Electrical and Electronics Engineers Inc., 2016. 7459956 (2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Degrees of freedom of three-user SISO interference channels under hybrid CSI at the transmitters

AU - Anand, Kushal

AU - Gunawan, Erry

AU - Guan, Yong Liang

PY - 2016/4/26

Y1 - 2016/4/26

N2 - In this paper, we consider the degrees of freedom (DoF) of the three-user single-input-single-output interference channel (SISO-IC) with independent and identically distributed (i.i.d.) fading across antennas and channel uses and under hybrid channel state information (CSI) at the transmitters. Hybrid CSI implies that delayed CSI of the whole network is available to all the transmitters whereas only local instantaneous CSI is available to each transmitter which is obtained through feedback from its own receiver. We show that a DoF of 6/5 can be attained for this scenario which is greater than the existing results on completely delayed CSI feedback scenario. Further, the local instantaneous CSIT needs to be available only for 20% of the total transmission time. In other words, the CSIT in our scheme can be delayed up to 80% of the channel coherence time. Also, the message for every user is completely private, i.e., any part of it cannot be decoded by any unintended user.

AB - In this paper, we consider the degrees of freedom (DoF) of the three-user single-input-single-output interference channel (SISO-IC) with independent and identically distributed (i.i.d.) fading across antennas and channel uses and under hybrid channel state information (CSI) at the transmitters. Hybrid CSI implies that delayed CSI of the whole network is available to all the transmitters whereas only local instantaneous CSI is available to each transmitter which is obtained through feedback from its own receiver. We show that a DoF of 6/5 can be attained for this scenario which is greater than the existing results on completely delayed CSI feedback scenario. Further, the local instantaneous CSIT needs to be available only for 20% of the total transmission time. In other words, the CSIT in our scheme can be delayed up to 80% of the channel coherence time. Also, the message for every user is completely private, i.e., any part of it cannot be decoded by any unintended user.

KW - Degrees of freedom

KW - delayed CSIT

KW - hybrid CSIT

KW - interference alignment

KW - Interference channels

KW - SISO

UR - http://www.scopus.com/inward/record.url?scp=84973620708&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84973620708&partnerID=8YFLogxK

U2 - 10.1109/ICICS.2015.7459956

DO - 10.1109/ICICS.2015.7459956

M3 - Conference contribution

AN - SCOPUS:84973620708

T3 - 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015

BT - 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 10th International Conference on Information, Communications and Signal Processing, ICICS 2015

Y2 - 2 December 2015 through 4 December 2015

ER -

Anand K, Gunawan E, Guan YL. Degrees of freedom of three-user SISO interference channels under hybrid CSI at the transmitters. In 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015. Institute of Electrical and Electronics Engineers Inc. 2016. 7459956. (2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015). doi: 10.1109/ICICS.2015.7459956

Degrees of freedom of three-user SISO interference channels under hybrid CSI at the transmitters

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

Other files and links

Fingerprint

Cite this