Cross-Link Interference Suppression By Orthogonal Projector For 5G Dynamic TDD URLLC Systems

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Abstract

Dynamic time division duplexing (TDD) is envisioned as a vital transmission technology of the 5G new radio, due to its reciprocal propagation characteristics. However, the potential cross-link interference (CLI) imposes a fundamental limitation against the feasibility of the ultra-reliable and low latency communications (URLLC) in dynamic-TDD systems. In this work, we propose a near-optimal and complexity-efficient CLI suppression scheme using orthogonal spatial projection, while the signaling overhead is limited to B-bit, over the back-haul links. Compared to the state-of-the-art dynamic-TDD studies, proposed solution offers a significant improvement of the URLLC outage latency, e.g., -199% reduction, while boosting the achievable capacity per the URLLC packet by +156%.
Original languageEnglish
Title of host publicationIEEE Wireless Communications and Networking Conference (WCNC)
Publication date2020
Publication statusPublished - 2020

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Interference suppression
Communication systems
Communication
Outages

Keywords

  • URLLC
  • Cross link interference
  • TDD
  • 5G

Cite this

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title = "Cross-Link Interference Suppression By Orthogonal Projector For 5G Dynamic TDD URLLC Systems",
abstract = "Dynamic time division duplexing (TDD) is envisioned as a vital transmission technology of the 5G new radio, due to its reciprocal propagation characteristics. However, the potential cross-link interference (CLI) imposes a fundamental limitation against the feasibility of the ultra-reliable and low latency communications (URLLC) in dynamic-TDD systems. In this work, we propose a near-optimal and complexity-efficient CLI suppression scheme using orthogonal spatial projection, while the signaling overhead is limited to B-bit, over the back-haul links. Compared to the state-of-the-art dynamic-TDD studies, proposed solution offers a significant improvement of the URLLC outage latency, e.g., -199{\%} reduction, while boosting the achievable capacity per the URLLC packet by +156{\%}.",
keywords = "URLLC, Cross link interference, TDD, 5G",
author = "Esswie, {Ali Abdelmawgood Ali Ali} and Pedersen, {Klaus Ingemann}",
year = "2020",
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Cross-Link Interference Suppression By Orthogonal Projector For 5G Dynamic TDD URLLC Systems. / Esswie, Ali Abdelmawgood Ali Ali; Pedersen, Klaus Ingemann.

IEEE Wireless Communications and Networking Conference (WCNC). 2020.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

TY - GEN

T1 - Cross-Link Interference Suppression By Orthogonal Projector For 5G Dynamic TDD URLLC Systems

AU - Esswie, Ali Abdelmawgood Ali Ali

AU - Pedersen, Klaus Ingemann

PY - 2020

Y1 - 2020

N2 - Dynamic time division duplexing (TDD) is envisioned as a vital transmission technology of the 5G new radio, due to its reciprocal propagation characteristics. However, the potential cross-link interference (CLI) imposes a fundamental limitation against the feasibility of the ultra-reliable and low latency communications (URLLC) in dynamic-TDD systems. In this work, we propose a near-optimal and complexity-efficient CLI suppression scheme using orthogonal spatial projection, while the signaling overhead is limited to B-bit, over the back-haul links. Compared to the state-of-the-art dynamic-TDD studies, proposed solution offers a significant improvement of the URLLC outage latency, e.g., -199% reduction, while boosting the achievable capacity per the URLLC packet by +156%.

AB - Dynamic time division duplexing (TDD) is envisioned as a vital transmission technology of the 5G new radio, due to its reciprocal propagation characteristics. However, the potential cross-link interference (CLI) imposes a fundamental limitation against the feasibility of the ultra-reliable and low latency communications (URLLC) in dynamic-TDD systems. In this work, we propose a near-optimal and complexity-efficient CLI suppression scheme using orthogonal spatial projection, while the signaling overhead is limited to B-bit, over the back-haul links. Compared to the state-of-the-art dynamic-TDD studies, proposed solution offers a significant improvement of the URLLC outage latency, e.g., -199% reduction, while boosting the achievable capacity per the URLLC packet by +156%.

KW - URLLC

KW - Cross link interference

KW - TDD

KW - 5G

M3 - Article in proceeding

BT - IEEE Wireless Communications and Networking Conference (WCNC)

ER -