A rate-splitting strategy for max-min fair multigroup multicasting

Hamdi Joudeh; Bruno Clerckx

doi:10.1109/SPAWC.2016.7536771

A rate-splitting strategy for max-min fair multigroup multicasting

Hamdi Joudeh, Bruno Clerckx

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

20 Citations (Scopus)

Abstract

We consider the problem of transmit beamforming to multiple cochannel multicast groups. The conventional approach is to beamform a designated data stream to each group, while treating potential inter-group interference as noise at the receivers. In overloaded systems where the number of transmit antennas is insufficient to perform interference nulling, we show that inter-group interference dominates at high SNRs, leading to a saturating max-min fair performance. We propose a rather unconventional approach to cope with this issue based on the concept of Rate-Splitting (RS). In particular, part of the interference is broadcasted to all groups such that it is decoded and canceled before the designated beams are decoded. We show that the RS strategy achieves significant performance gains over the conventional multigroup multicast beamforming strategy.

Original language	English
Title of host publication	2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	5
ISBN (Electronic)	978-1-5090-1749-2
DOIs	https://doi.org/10.1109/SPAWC.2016.7536771
Publication status	Published - 11 Aug 2016
Externally published	Yes
Event	17th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2016 - Edinburgh, United Kingdom Duration: 3 Jul 2016 → 6 Jul 2016

Conference

Conference	17th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2016
Country/Territory	United Kingdom
City	Edinburgh
Period	3/07/16 → 6/07/16

Keywords

Broadcasting
degrees of freedom
downlink beamforming
multicasting
WMMSE approach

Access to Document

10.1109/SPAWC.2016.7536771

Cite this

@inproceedings{72ce2591f34d4d228663e83d2ad8d71d,

title = "A rate-splitting strategy for max-min fair multigroup multicasting",

abstract = "We consider the problem of transmit beamforming to multiple cochannel multicast groups. The conventional approach is to beamform a designated data stream to each group, while treating potential inter-group interference as noise at the receivers. In overloaded systems where the number of transmit antennas is insufficient to perform interference nulling, we show that inter-group interference dominates at high SNRs, leading to a saturating max-min fair performance. We propose a rather unconventional approach to cope with this issue based on the concept of Rate-Splitting (RS). In particular, part of the interference is broadcasted to all groups such that it is decoded and canceled before the designated beams are decoded. We show that the RS strategy achieves significant performance gains over the conventional multigroup multicast beamforming strategy.",

keywords = "Broadcasting, degrees of freedom, downlink beamforming, multicasting, WMMSE approach",

author = "Hamdi Joudeh and Bruno Clerckx",

year = "2016",

month = aug,

day = "11",

doi = "10.1109/SPAWC.2016.7536771",

language = "English",

booktitle = "2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)",

publisher = "Institute of Electrical and Electronics Engineers",

address = "United States",

note = "17th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2016 ; Conference date: 03-07-2016 Through 06-07-2016",

}

Joudeh, H & Clerckx, B 2016, A rate-splitting strategy for max-min fair multigroup multicasting. in 2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)., 7536771, Institute of Electrical and Electronics Engineers, 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2016, Edinburgh, United Kingdom, 3/07/16. https://doi.org/10.1109/SPAWC.2016.7536771

A rate-splitting strategy for max-min fair multigroup multicasting. / Joudeh, Hamdi; Clerckx, Bruno.

2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC). Institute of Electrical and Electronics Engineers, 2016. 7536771.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - A rate-splitting strategy for max-min fair multigroup multicasting

AU - Joudeh, Hamdi

AU - Clerckx, Bruno

PY - 2016/8/11

Y1 - 2016/8/11

N2 - We consider the problem of transmit beamforming to multiple cochannel multicast groups. The conventional approach is to beamform a designated data stream to each group, while treating potential inter-group interference as noise at the receivers. In overloaded systems where the number of transmit antennas is insufficient to perform interference nulling, we show that inter-group interference dominates at high SNRs, leading to a saturating max-min fair performance. We propose a rather unconventional approach to cope with this issue based on the concept of Rate-Splitting (RS). In particular, part of the interference is broadcasted to all groups such that it is decoded and canceled before the designated beams are decoded. We show that the RS strategy achieves significant performance gains over the conventional multigroup multicast beamforming strategy.

AB - We consider the problem of transmit beamforming to multiple cochannel multicast groups. The conventional approach is to beamform a designated data stream to each group, while treating potential inter-group interference as noise at the receivers. In overloaded systems where the number of transmit antennas is insufficient to perform interference nulling, we show that inter-group interference dominates at high SNRs, leading to a saturating max-min fair performance. We propose a rather unconventional approach to cope with this issue based on the concept of Rate-Splitting (RS). In particular, part of the interference is broadcasted to all groups such that it is decoded and canceled before the designated beams are decoded. We show that the RS strategy achieves significant performance gains over the conventional multigroup multicast beamforming strategy.

KW - Broadcasting

KW - degrees of freedom

KW - downlink beamforming

KW - multicasting

KW - WMMSE approach

UR - http://www.scopus.com/inward/record.url?scp=84984598793&partnerID=8YFLogxK

U2 - 10.1109/SPAWC.2016.7536771

DO - 10.1109/SPAWC.2016.7536771

M3 - Conference contribution

AN - SCOPUS:84984598793

BT - 2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)

PB - Institute of Electrical and Electronics Engineers

T2 - 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2016

Y2 - 3 July 2016 through 6 July 2016

ER -

A rate-splitting strategy for max-min fair multigroup multicasting

Abstract

Conference

Keywords

Access to Document

Other files and links

Fingerprint

Cite this