Rate-Splitting and Sum-DoF for the K-User MISO Broadcast Channel with Mixed CSIT and Order-(K - 1) Messages

Shuo ZHENG; Tong ZHANG; Jingfu LI; Shuai WANG; Weijie YUAN; Gaojie CHEN; Rui WANG

doi:10.1109/VTC2023-Fall60731.2023.10333589

Rate-Splitting and Sum-DoF for the K-User MISO Broadcast Channel with Mixed CSIT and Order-(K - 1) Messages

Shuo ZHENG^*, Tong ZHANG, Jingfu LI, Shuai WANG, Weijie YUAN, Gaojie CHEN, Rui WANG

^*Corresponding author for this work

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › peer-review

Abstract

In this paper, we propose a rate-splitting design and characterize the sum-degrees-of-freedom (DoF) for the K-user multiple-input-single-output (MISO) broadcast channel with mixed channel state information at the transmitter (CSIT) and order-(K - 1) messages, where mixed CSIT refers to the delayed and imperfect-current CSIT, and order-(K - 1) message refers to the message desired by K - 1 users simultaneously. In particular, for the sum-DoF lower bound, we propose a rate-splitting scheme embedding with retrospective interference alignment. In addition, we propose a matching sum-DoF upper bound via genie signalings and extremal inequality. Opposed to existing works for K = 2, our results show that the sum-DoF is saturated with CSIT quality when CSIT quality thresholds are satisfied for K > 2.

Original language	English
Title of host publication	2023 IEEE 98th Vehicular Technology Conference, VTC 2023-Fall : Proceedings
Publisher	IEEE
ISBN (Electronic)	9798350329285
DOIs	https://doi.org/10.1109/VTC2023-Fall60731.2023.10333589
Publication status	Published - 2023
Externally published	Yes
Event	98th IEEE Vehicular Technology Conference, VTC 2023-Fall - Hong Kong, China Duration: 10 Oct 2023 → 13 Oct 2023

Publication series

Name	IEEE Vehicular Technology Conference
ISSN (Print)	1550-2252

Conference

Conference	98th IEEE Vehicular Technology Conference, VTC 2023-Fall
Country/Territory	China
City	Hong Kong
Period	10/10/23 → 13/10/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

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10.1109/VTC2023-Fall60731.2023.10333589

Cite this

@inproceedings{b820c29846454710ab517a0d74f54390,

title = "Rate-Splitting and Sum-DoF for the K-User MISO Broadcast Channel with Mixed CSIT and Order-(K - 1) Messages",

abstract = "In this paper, we propose a rate-splitting design and characterize the sum-degrees-of-freedom (DoF) for the K-user multiple-input-single-output (MISO) broadcast channel with mixed channel state information at the transmitter (CSIT) and order-(K - 1) messages, where mixed CSIT refers to the delayed and imperfect-current CSIT, and order-(K - 1) message refers to the message desired by K - 1 users simultaneously. In particular, for the sum-DoF lower bound, we propose a rate-splitting scheme embedding with retrospective interference alignment. In addition, we propose a matching sum-DoF upper bound via genie signalings and extremal inequality. Opposed to existing works for K = 2, our results show that the sum-DoF is saturated with CSIT quality when CSIT quality thresholds are satisfied for K > 2.",

author = "Shuo ZHENG and Tong ZHANG and Jingfu LI and Shuai WANG and Weijie YUAN and Gaojie CHEN and Rui WANG",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 98th IEEE Vehicular Technology Conference, VTC 2023-Fall ; Conference date: 10-10-2023 Through 13-10-2023",

year = "2023",

doi = "10.1109/VTC2023-Fall60731.2023.10333589",

language = "English",

series = "IEEE Vehicular Technology Conference",

publisher = "IEEE",

booktitle = "2023 IEEE 98th Vehicular Technology Conference, VTC 2023-Fall : Proceedings",

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ZHENG, S, ZHANG, T, LI, J, WANG, S, YUAN, W, CHEN, G & WANG, R 2023, Rate-Splitting and Sum-DoF for the K-User MISO Broadcast Channel with Mixed CSIT and Order-(K - 1) Messages. in 2023 IEEE 98th Vehicular Technology Conference, VTC 2023-Fall : Proceedings. IEEE Vehicular Technology Conference, IEEE, 98th IEEE Vehicular Technology Conference, VTC 2023-Fall, Hong Kong, China, 10/10/23. https://doi.org/10.1109/VTC2023-Fall60731.2023.10333589

Rate-Splitting and Sum-DoF for the K-User MISO Broadcast Channel with Mixed CSIT and Order-(K - 1) Messages. / ZHENG, Shuo; ZHANG, Tong; LI, Jingfu et al.
2023 IEEE 98th Vehicular Technology Conference, VTC 2023-Fall : Proceedings. IEEE, 2023. (IEEE Vehicular Technology Conference).

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › peer-review

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T1 - Rate-Splitting and Sum-DoF for the K-User MISO Broadcast Channel with Mixed CSIT and Order-(K - 1) Messages

AU - ZHENG, Shuo

AU - ZHANG, Tong

AU - LI, Jingfu

AU - WANG, Shuai

AU - YUAN, Weijie

AU - CHEN, Gaojie

AU - WANG, Rui

PY - 2023

Y1 - 2023

N2 - In this paper, we propose a rate-splitting design and characterize the sum-degrees-of-freedom (DoF) for the K-user multiple-input-single-output (MISO) broadcast channel with mixed channel state information at the transmitter (CSIT) and order-(K - 1) messages, where mixed CSIT refers to the delayed and imperfect-current CSIT, and order-(K - 1) message refers to the message desired by K - 1 users simultaneously. In particular, for the sum-DoF lower bound, we propose a rate-splitting scheme embedding with retrospective interference alignment. In addition, we propose a matching sum-DoF upper bound via genie signalings and extremal inequality. Opposed to existing works for K = 2, our results show that the sum-DoF is saturated with CSIT quality when CSIT quality thresholds are satisfied for K > 2.

AB - In this paper, we propose a rate-splitting design and characterize the sum-degrees-of-freedom (DoF) for the K-user multiple-input-single-output (MISO) broadcast channel with mixed channel state information at the transmitter (CSIT) and order-(K - 1) messages, where mixed CSIT refers to the delayed and imperfect-current CSIT, and order-(K - 1) message refers to the message desired by K - 1 users simultaneously. In particular, for the sum-DoF lower bound, we propose a rate-splitting scheme embedding with retrospective interference alignment. In addition, we propose a matching sum-DoF upper bound via genie signalings and extremal inequality. Opposed to existing works for K = 2, our results show that the sum-DoF is saturated with CSIT quality when CSIT quality thresholds are satisfied for K > 2.

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M3 - Conference paper (refereed)

AN - SCOPUS:85181175955

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ER -

Rate-Splitting and Sum-DoF for the K-User MISO Broadcast Channel with Mixed CSIT and Order-(K - 1) Messages

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