General exact level crossing rate and average fade duration for dual-diversity combining of nonidentical correlated Weibull signals

Daniel Benevides da Costa; Michel Daoud Yacoub; José Cândido Silveira Santos Filho; Gustavo Fraidenraich

doi:10.1109/TVT.2007.901038

General exact level crossing rate and average fade duration for dual-diversity combining of nonidentical correlated Weibull signals

Daniel Benevides da Costa^*, Michel Daoud Yacoub, José Cândido Silveira Santos Filho, Gustavo Fraidenraich

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

This paper derives general exact expressions for the level crossing rate (LCR) and the average fade duration (AFD) of dual-branch selection, equal-gain, and maximal-ratio combiners operating over nonidentical correlated Weibull fading channels. Sample numerical results are discussed by specializing the general expressions to a space-diversity system using horizontally spaced antennas at a mobile station. It is verified that as the antenna spacing becomes larger, the LCR decreases, becoming oscillatory and convergent. In addition, when the direction of the mobile is perpendicular to the axis of the antenna, the AFD is loosely dependent on the antenna spacing. Some simulation results are presented to verify the correctness of the analytical formulation.

Original language	English
Pages (from-to)	3571-3577
Number of pages	7
Journal	IEEE Transactions on Vehicular Technology
Volume	56
Issue number	6 I
DOIs	https://doi.org/10.1109/TVT.2007.901038
State	Published - Nov 2007
Externally published	Yes

Keywords

Average fade duration (AFD)
Diversity-combining techniques
Fading channels
Level crossing rate (LCR)
Weibull distribution
Weibull fading channels

ASJC Scopus subject areas

Automotive Engineering
Aerospace Engineering
Computer Networks and Communications
Electrical and Electronic Engineering

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10.1109/TVT.2007.901038

Cite this

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title = "General exact level crossing rate and average fade duration for dual-diversity combining of nonidentical correlated Weibull signals",

abstract = "This paper derives general exact expressions for the level crossing rate (LCR) and the average fade duration (AFD) of dual-branch selection, equal-gain, and maximal-ratio combiners operating over nonidentical correlated Weibull fading channels. Sample numerical results are discussed by specializing the general expressions to a space-diversity system using horizontally spaced antennas at a mobile station. It is verified that as the antenna spacing becomes larger, the LCR decreases, becoming oscillatory and convergent. In addition, when the direction of the mobile is perpendicular to the axis of the antenna, the AFD is loosely dependent on the antenna spacing. Some simulation results are presented to verify the correctness of the analytical formulation.",

keywords = "Average fade duration (AFD), Diversity-combining techniques, Fading channels, Level crossing rate (LCR), Weibull distribution, Weibull fading channels",

author = "\{da Costa\}, \{Daniel Benevides\} and Yacoub, \{Michel Daoud\} and \{Santos Filho\}, \{Jos{\'e} C{\^a}ndido Silveira\} and Gustavo Fraidenraich",

year = "2007",

month = nov,

doi = "10.1109/TVT.2007.901038",

language = "English",

volume = "56",

pages = "3571--3577",

journal = "IEEE Transactions on Vehicular Technology",

issn = "0018-9545",

number = "6 I",

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General exact level crossing rate and average fade duration for dual-diversity combining of nonidentical correlated Weibull signals. / da Costa, Daniel Benevides; Yacoub, Michel Daoud; Santos Filho, José Cândido Silveira et al.
In: IEEE Transactions on Vehicular Technology, Vol. 56, No. 6 I, 11.2007, p. 3571-3577.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - General exact level crossing rate and average fade duration for dual-diversity combining of nonidentical correlated Weibull signals

AU - da Costa, Daniel Benevides

AU - Yacoub, Michel Daoud

AU - Santos Filho, José Cândido Silveira

AU - Fraidenraich, Gustavo

PY - 2007/11

Y1 - 2007/11

N2 - This paper derives general exact expressions for the level crossing rate (LCR) and the average fade duration (AFD) of dual-branch selection, equal-gain, and maximal-ratio combiners operating over nonidentical correlated Weibull fading channels. Sample numerical results are discussed by specializing the general expressions to a space-diversity system using horizontally spaced antennas at a mobile station. It is verified that as the antenna spacing becomes larger, the LCR decreases, becoming oscillatory and convergent. In addition, when the direction of the mobile is perpendicular to the axis of the antenna, the AFD is loosely dependent on the antenna spacing. Some simulation results are presented to verify the correctness of the analytical formulation.

AB - This paper derives general exact expressions for the level crossing rate (LCR) and the average fade duration (AFD) of dual-branch selection, equal-gain, and maximal-ratio combiners operating over nonidentical correlated Weibull fading channels. Sample numerical results are discussed by specializing the general expressions to a space-diversity system using horizontally spaced antennas at a mobile station. It is verified that as the antenna spacing becomes larger, the LCR decreases, becoming oscillatory and convergent. In addition, when the direction of the mobile is perpendicular to the axis of the antenna, the AFD is loosely dependent on the antenna spacing. Some simulation results are presented to verify the correctness of the analytical formulation.

KW - Average fade duration (AFD)

KW - Diversity-combining techniques

KW - Fading channels

KW - Level crossing rate (LCR)

KW - Weibull distribution

KW - Weibull fading channels

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DO - 10.1109/TVT.2007.901038

M3 - Article

AN - SCOPUS:36749084552

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VL - 56

SP - 3571

EP - 3577

JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

IS - 6 I

ER -

General exact level crossing rate and average fade duration for dual-diversity combining of nonidentical correlated Weibull signals

Abstract

Keywords

ASJC Scopus subject areas

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