Constructive Multi-User Interference for Symbol-Level Link Adaptation: MMSE Approach

Yong I. Choi; Jae W. Lee; Chung G. Kang; Minjoong Rim

doi:10.1109/GLOCOMW.2017.8269178

Constructive Multi-User Interference for Symbol-Level Link Adaptation: MMSE Approach

Yong I. Choi, Jae W. Lee, Chung G. Kang, Minjoong Rim

School of Electrical Engineering

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

3 Citations (Scopus)

Abstract

Unlike the general concept of eliminating or avoiding inter-user interference in the multi-user downlink multiple-input single-output (MISO) system, the data-aided precoding scheme attempts to exploit the constructive interference at symbol level among the multiple users. A positive interference can be constructed to enhance the received signal gain by predicting the phase and magnitude of inter-user interference. Thus, we propose constructive interference optimization that maximizes the signal-to-interference and noise ratio (SINR) of users by predicting the constructive interference. Towards this end, we formulate a minimum mean square error (MMSE) problem, which is relaxed over the constructive interference region with the minimum required cumulative constrictive interference gain (CCIG) under a total power constraint. We then derive the optimal transmit signal vector as a function of Lagrange multipliers obtained by Karush-Kuhn-Tucker (KKT) conditions. Our numerical results demonstrate that the proposed data-aided precoding scheme provides more CCIG than other state-of-the-art schemes, which turns out to be useful under a mm-wave band channel with few multi-paths or non-homogeneous environment.

Original language	English
Title of host publication	2017 IEEE Globecom Workshops, GC Wkshps 2017 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1-6
Number of pages	6
ISBN (Electronic)	9781538639207
DOIs	https://doi.org/10.1109/GLOCOMW.2017.8269178
Publication status	Published - 2017 Jul 2
Event	2017 IEEE Global Telecommunications Conference, GC 2017 - Singapore, Singapore Duration: 2017 Dec 4 → 2017 Dec 8

Publication series

Name	2017 IEEE Globecom Workshops, GC Wkshps 2017 - Proceedings
Volume	2018-January

Other

Other	2017 IEEE Global Telecommunications Conference, GC 2017
Country/Territory	Singapore
City	Singapore
Period	17/12/4 → 17/12/8

Bibliographical note

Funding Information:
This work was supported by Institute for Information & communications Technology Promotion (IITP) grant funded by the Korea government (MSIT) (No. 2014-0-00282, Development of 5G Mobile Communication Technologies for Hyper-connected smart services)

Publisher Copyright:
© 2017 IEEE.

ASJC Scopus subject areas

Computer Networks and Communications
Computer Science Applications
Hardware and Architecture
Safety, Risk, Reliability and Quality

Access to Document

10.1109/GLOCOMW.2017.8269178

Cite this

Choi, Y. I., Lee, J. W., Kang, C. G., & Rim, M. (2017). Constructive Multi-User Interference for Symbol-Level Link Adaptation: MMSE Approach. In 2017 IEEE Globecom Workshops, GC Wkshps 2017 - Proceedings (pp. 1-6). (2017 IEEE Globecom Workshops, GC Wkshps 2017 - Proceedings; Vol. 2018-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOCOMW.2017.8269178

Constructive Multi-User Interference for Symbol-Level Link Adaptation: MMSE Approach. / Choi, Yong I.; Lee, Jae W.; Kang, Chung G. et al.
2017 IEEE Globecom Workshops, GC Wkshps 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. p. 1-6 (2017 IEEE Globecom Workshops, GC Wkshps 2017 - Proceedings; Vol. 2018-January).

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

Choi, YI, Lee, JW, Kang, CG & Rim, M 2017, Constructive Multi-User Interference for Symbol-Level Link Adaptation: MMSE Approach. in 2017 IEEE Globecom Workshops, GC Wkshps 2017 - Proceedings. 2017 IEEE Globecom Workshops, GC Wkshps 2017 - Proceedings, vol. 2018-January, Institute of Electrical and Electronics Engineers Inc., pp. 1-6, 2017 IEEE Global Telecommunications Conference, GC 2017, Singapore, Singapore, 17/12/4. https://doi.org/10.1109/GLOCOMW.2017.8269178

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Constructive Multi-User Interference for Symbol-Level Link Adaptation: MMSE Approach

Abstract

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