Simple Cooperative Transmission Schemes for Underlay Spectrum Sharing Using Symbol-level Precoding and Load-controlled Arrays

K. Ntougias, D. Ntaikos, C. B. Papadias, G. K. Papageorgiou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The combination of coordinated multi-point (CoMP) and underlay spectrum sharing promises substantial spectral efficiency (SE) gains for future cellular networks. However, this concept has been largely overlooked in the literature. Moreover, none of the few relevant studies consider the use of »standard» transmission strategies to facilitate the adoption of the aforementioned communication paradigm by 5G networks. The use of load-controlled antenna arrays (LC-AA) and symbol-level (SL) precoding can further enhance the performance of CoMP cellular networks, as it has been shown in the literature. Nevertheless, the corresponding research works do not consider a spectrum sharing setup. In this paper, we fill this gap in the literature by deriving the optimal power allocation strategy (in the sum-SE sense) and the corresponding algorithm that implements this solution for scenarios where various linear or SL precoding schemes are applied. Numerical simulations indicate the feasibility of the proposed approach for LC-AA-equipped CoMP networks and shed light on the effect of various parameters on system performance.

Original languageEnglish
Title of host publication2019 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
PublisherIEEE
Pages7854-7858
Number of pages5
ISBN (Electronic)9781479981311
DOIs
Publication statusPublished - 17 Apr 2019
Event44th IEEE International Conference on Acoustics, Speech, and Signal Processing 2019 - Brighton, United Kingdom
Duration: 12 May 201917 May 2019

Publication series

NameIEEE International Conference on Acoustics, Speech and Signal Processing
ISSN (Electronic)2379-190X

Conference

Conference44th IEEE International Conference on Acoustics, Speech, and Signal Processing 2019
Abbreviated titleICASSP 2019
CountryUnited Kingdom
CityBrighton
Period12/05/1917/05/19

Keywords

  • Coordinated multi-point (CoMP)
  • joint beam selection and precoding algorithm (JBSPA)
  • load-controlled antenna arrays (LC-AA)
  • non-orthogonal spectrum sharing (NOSS)
  • symbol-level zero-forcing beamforming (SL-ZFBF)

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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