The effective radiation pattern concept for realistic performance estimation of LTE wireless systems

Dimitra Zarbouti, George Tsoulos, Georgia Athanasiadou, Constantinos Valagiannopoulos

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Radio channels induce distortions to the radiation pattern of beamforming systems such as beam broadening as well as sidelobe level and null rising. If these effects are ignored, the system performance is overestimated. This paper proposes the simple concept of an effective radiation pattern (ERP) calculated by optimally fitting the "real-world" radiation pattern to the ERP. The proposed ERP method is incorporated into a multicell bad urban 4G LTE operational scenario which employs beamforming for both the BSs and the RNs. The performed simulations provide evidence that the ideal instead of the real radiation pattern overestimates the SIR and capacity by almost 3 dB and 13 Mbps, respectively, for the reference scenario without RNs. It also proves that the ERP method produces almost identical performance results with the real radiation pattern, and hence it is a simple and viable option for realistic performance analysis. Finally, the network performance is studied as a function of the number of RNs with the help of the ERP method. Results show that a beamforming LTE network with RNs that also employ beamforming provides 3 dB SIR gain with the addition of 1 RN per cell and 15 dB gain with 4 RNs per cell.

Original languageEnglish
Article number746831
JournalInternational Journal of Antennas and Propagation
Volume2013
DOIs
Publication statusPublished - 2013
Externally publishedYes

Fingerprint

Beamforming
Network performance

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

The effective radiation pattern concept for realistic performance estimation of LTE wireless systems. / Zarbouti, Dimitra; Tsoulos, George; Athanasiadou, Georgia; Valagiannopoulos, Constantinos.

In: International Journal of Antennas and Propagation, Vol. 2013, 746831, 2013.

Research output: Contribution to journalArticle

@article{5575d02d65454141b3701dee1c18d4fc,
title = "The effective radiation pattern concept for realistic performance estimation of LTE wireless systems",
abstract = "Radio channels induce distortions to the radiation pattern of beamforming systems such as beam broadening as well as sidelobe level and null rising. If these effects are ignored, the system performance is overestimated. This paper proposes the simple concept of an effective radiation pattern (ERP) calculated by optimally fitting the {"}real-world{"} radiation pattern to the ERP. The proposed ERP method is incorporated into a multicell bad urban 4G LTE operational scenario which employs beamforming for both the BSs and the RNs. The performed simulations provide evidence that the ideal instead of the real radiation pattern overestimates the SIR and capacity by almost 3 dB and 13 Mbps, respectively, for the reference scenario without RNs. It also proves that the ERP method produces almost identical performance results with the real radiation pattern, and hence it is a simple and viable option for realistic performance analysis. Finally, the network performance is studied as a function of the number of RNs with the help of the ERP method. Results show that a beamforming LTE network with RNs that also employ beamforming provides 3 dB SIR gain with the addition of 1 RN per cell and 15 dB gain with 4 RNs per cell.",
author = "Dimitra Zarbouti and George Tsoulos and Georgia Athanasiadou and Constantinos Valagiannopoulos",
year = "2013",
doi = "10.1155/2013/746831",
language = "English",
volume = "2013",
journal = "International Journal of Antennas and Propagation",
issn = "1687-5869",
publisher = "Hindawi Publishing Corporation",

}

TY - JOUR

T1 - The effective radiation pattern concept for realistic performance estimation of LTE wireless systems

AU - Zarbouti, Dimitra

AU - Tsoulos, George

AU - Athanasiadou, Georgia

AU - Valagiannopoulos, Constantinos

PY - 2013

Y1 - 2013

N2 - Radio channels induce distortions to the radiation pattern of beamforming systems such as beam broadening as well as sidelobe level and null rising. If these effects are ignored, the system performance is overestimated. This paper proposes the simple concept of an effective radiation pattern (ERP) calculated by optimally fitting the "real-world" radiation pattern to the ERP. The proposed ERP method is incorporated into a multicell bad urban 4G LTE operational scenario which employs beamforming for both the BSs and the RNs. The performed simulations provide evidence that the ideal instead of the real radiation pattern overestimates the SIR and capacity by almost 3 dB and 13 Mbps, respectively, for the reference scenario without RNs. It also proves that the ERP method produces almost identical performance results with the real radiation pattern, and hence it is a simple and viable option for realistic performance analysis. Finally, the network performance is studied as a function of the number of RNs with the help of the ERP method. Results show that a beamforming LTE network with RNs that also employ beamforming provides 3 dB SIR gain with the addition of 1 RN per cell and 15 dB gain with 4 RNs per cell.

AB - Radio channels induce distortions to the radiation pattern of beamforming systems such as beam broadening as well as sidelobe level and null rising. If these effects are ignored, the system performance is overestimated. This paper proposes the simple concept of an effective radiation pattern (ERP) calculated by optimally fitting the "real-world" radiation pattern to the ERP. The proposed ERP method is incorporated into a multicell bad urban 4G LTE operational scenario which employs beamforming for both the BSs and the RNs. The performed simulations provide evidence that the ideal instead of the real radiation pattern overestimates the SIR and capacity by almost 3 dB and 13 Mbps, respectively, for the reference scenario without RNs. It also proves that the ERP method produces almost identical performance results with the real radiation pattern, and hence it is a simple and viable option for realistic performance analysis. Finally, the network performance is studied as a function of the number of RNs with the help of the ERP method. Results show that a beamforming LTE network with RNs that also employ beamforming provides 3 dB SIR gain with the addition of 1 RN per cell and 15 dB gain with 4 RNs per cell.

UR - http://www.scopus.com/inward/record.url?scp=84890103552&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84890103552&partnerID=8YFLogxK

U2 - 10.1155/2013/746831

DO - 10.1155/2013/746831

M3 - Article

VL - 2013

JO - International Journal of Antennas and Propagation

JF - International Journal of Antennas and Propagation

SN - 1687-5869

M1 - 746831

ER -