Impact of diagonal correlations on MIMO capacity: Application to geometrical scattering models

C. Oestges, Bruno Clercks, D. Vanhoenacker-Janvier, A. J. Paulraj

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

This paper highlights the impact of channel correlations on the capacity of MIMO communications, with a focus on the so called diagonal correlations. Based on this analysis, the limitations of simplified mathematical representations, such as the Kronecker or the diagonal-decorrelation models, are pointed out. Finally, the correlation properties of characteristic geometrical scattering models are studied in order to analyze whether these models can be adequately represented by the simplified formalisms, as well as to quantify the errors introduced by these simplifications. With respect to channel correlations, neither the Kronecker model nor the diagonal-decorrelation assumptions are good representations of the investigated geometrical scattering models. When comparing capacity values, it is found that the diagonal-decorrelation model may yield significant errors. In particular, relative errors on ergodic or outage capacity may be significant for the Kronecker model.

Original languageEnglish
Pages (from-to)394-398
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume58
Issue number1
Publication statusPublished - 2003
Externally publishedYes

Fingerprint

MIMO systems
Multiple-input multiple-output (MIMO)
Scattering
Model
Relative Error
Outages
Simplification
Quantify
Communication

Keywords

  • Capacity
  • Correlation
  • MIMO
  • Propagation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Applied Mathematics

Cite this

Oestges, C., Clercks, B., Vanhoenacker-Janvier, D., & Paulraj, A. J. (2003). Impact of diagonal correlations on MIMO capacity: Application to geometrical scattering models. IEEE Vehicular Technology Conference, 58(1), 394-398.

Impact of diagonal correlations on MIMO capacity : Application to geometrical scattering models. / Oestges, C.; Clercks, Bruno; Vanhoenacker-Janvier, D.; Paulraj, A. J.

In: IEEE Vehicular Technology Conference, Vol. 58, No. 1, 2003, p. 394-398.

Research output: Contribution to journalArticle

Oestges, C, Clercks, B, Vanhoenacker-Janvier, D & Paulraj, AJ 2003, 'Impact of diagonal correlations on MIMO capacity: Application to geometrical scattering models', IEEE Vehicular Technology Conference, vol. 58, no. 1, pp. 394-398.
Oestges, C. ; Clercks, Bruno ; Vanhoenacker-Janvier, D. ; Paulraj, A. J. / Impact of diagonal correlations on MIMO capacity : Application to geometrical scattering models. In: IEEE Vehicular Technology Conference. 2003 ; Vol. 58, No. 1. pp. 394-398.
@article{b4e0bf9c5c4e424480d101d8c2327e59,
title = "Impact of diagonal correlations on MIMO capacity: Application to geometrical scattering models",
abstract = "This paper highlights the impact of channel correlations on the capacity of MIMO communications, with a focus on the so called diagonal correlations. Based on this analysis, the limitations of simplified mathematical representations, such as the Kronecker or the diagonal-decorrelation models, are pointed out. Finally, the correlation properties of characteristic geometrical scattering models are studied in order to analyze whether these models can be adequately represented by the simplified formalisms, as well as to quantify the errors introduced by these simplifications. With respect to channel correlations, neither the Kronecker model nor the diagonal-decorrelation assumptions are good representations of the investigated geometrical scattering models. When comparing capacity values, it is found that the diagonal-decorrelation model may yield significant errors. In particular, relative errors on ergodic or outage capacity may be significant for the Kronecker model.",
keywords = "Capacity, Correlation, MIMO, Propagation",
author = "C. Oestges and Bruno Clercks and D. Vanhoenacker-Janvier and Paulraj, {A. J.}",
year = "2003",
language = "English",
volume = "58",
pages = "394--398",
journal = "IEEE Vehicular Technology Conference",
issn = "0740-0551",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "1",

}

TY - JOUR

T1 - Impact of diagonal correlations on MIMO capacity

T2 - Application to geometrical scattering models

AU - Oestges, C.

AU - Clercks, Bruno

AU - Vanhoenacker-Janvier, D.

AU - Paulraj, A. J.

PY - 2003

Y1 - 2003

N2 - This paper highlights the impact of channel correlations on the capacity of MIMO communications, with a focus on the so called diagonal correlations. Based on this analysis, the limitations of simplified mathematical representations, such as the Kronecker or the diagonal-decorrelation models, are pointed out. Finally, the correlation properties of characteristic geometrical scattering models are studied in order to analyze whether these models can be adequately represented by the simplified formalisms, as well as to quantify the errors introduced by these simplifications. With respect to channel correlations, neither the Kronecker model nor the diagonal-decorrelation assumptions are good representations of the investigated geometrical scattering models. When comparing capacity values, it is found that the diagonal-decorrelation model may yield significant errors. In particular, relative errors on ergodic or outage capacity may be significant for the Kronecker model.

AB - This paper highlights the impact of channel correlations on the capacity of MIMO communications, with a focus on the so called diagonal correlations. Based on this analysis, the limitations of simplified mathematical representations, such as the Kronecker or the diagonal-decorrelation models, are pointed out. Finally, the correlation properties of characteristic geometrical scattering models are studied in order to analyze whether these models can be adequately represented by the simplified formalisms, as well as to quantify the errors introduced by these simplifications. With respect to channel correlations, neither the Kronecker model nor the diagonal-decorrelation assumptions are good representations of the investigated geometrical scattering models. When comparing capacity values, it is found that the diagonal-decorrelation model may yield significant errors. In particular, relative errors on ergodic or outage capacity may be significant for the Kronecker model.

KW - Capacity

KW - Correlation

KW - MIMO

KW - Propagation

UR - http://www.scopus.com/inward/record.url?scp=4143129968&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4143129968&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:4143129968

VL - 58

SP - 394

EP - 398

JO - IEEE Vehicular Technology Conference

JF - IEEE Vehicular Technology Conference

SN - 0740-0551

IS - 1

ER -