Sector beam synthesis for cellular systems using phased antenna arrays

Ashutosh Sabharwal

doi:10.1109/25.892583

Sector beam synthesis for cellular systems using phased antenna arrays

Ashutosh Sabharwal

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

16 Scopus citations

Abstract

Cell sectorization is used extensively to increase the capacity of cellular systems; however, intersector interference caused by nonideal sector antennas limits full realization of sectorization benefits. In this paper, we propose a new technique for sector beam synthesis using phased antenna arrays. We adopt the criterion of minimizing intersector interference, subject to a peak-to-peak ripple constraint on the in-sector power pattern. Spectral factorization permits a reparameterization yielding an easily solved fractional linear program. The proposed procedure accommodates nonisotropic antenna elements, arbitrary element spacing, and arbitrary sector boundaries, but is limited to uniformly spaced linear arrays. To demonstrate the utility of the proposed method, it is used to predict antenna array size requirements for a direct-sequence code-division multiple-access (DS-CDMA) cellular system.

Original language	English (US)
Pages (from-to)	1784-1792
Number of pages	9
Journal	IEEE Transactions on Vehicular Technology
Volume	49
Issue number	5
DOIs	https://doi.org/10.1109/25.892583
State	Published - Sep 2000

ASJC Scopus subject areas

Automotive Engineering
Aerospace Engineering
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/25.892583

Cite this

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title = "Sector beam synthesis for cellular systems using phased antenna arrays",

abstract = "Cell sectorization is used extensively to increase the capacity of cellular systems; however, intersector interference caused by nonideal sector antennas limits full realization of sectorization benefits. In this paper, we propose a new technique for sector beam synthesis using phased antenna arrays. We adopt the criterion of minimizing intersector interference, subject to a peak-to-peak ripple constraint on the in-sector power pattern. Spectral factorization permits a reparameterization yielding an easily solved fractional linear program. The proposed procedure accommodates nonisotropic antenna elements, arbitrary element spacing, and arbitrary sector boundaries, but is limited to uniformly spaced linear arrays. To demonstrate the utility of the proposed method, it is used to predict antenna array size requirements for a direct-sequence code-division multiple-access (DS-CDMA) cellular system.",

author = "Ashutosh Sabharwal",

note = "Funding Information: We are grateful to many of our colleagues in the field of spin polarization in electron scattering from surfaces for helpful discussions, sending preprints, and constructive criticism of this review. This work was supported in part by the Office of Naval Research.",

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AU - Sabharwal, Ashutosh

N1 - Funding Information: We are grateful to many of our colleagues in the field of spin polarization in electron scattering from surfaces for helpful discussions, sending preprints, and constructive criticism of this review. This work was supported in part by the Office of Naval Research.

PY - 2000/9

Y1 - 2000/9

N2 - Cell sectorization is used extensively to increase the capacity of cellular systems; however, intersector interference caused by nonideal sector antennas limits full realization of sectorization benefits. In this paper, we propose a new technique for sector beam synthesis using phased antenna arrays. We adopt the criterion of minimizing intersector interference, subject to a peak-to-peak ripple constraint on the in-sector power pattern. Spectral factorization permits a reparameterization yielding an easily solved fractional linear program. The proposed procedure accommodates nonisotropic antenna elements, arbitrary element spacing, and arbitrary sector boundaries, but is limited to uniformly spaced linear arrays. To demonstrate the utility of the proposed method, it is used to predict antenna array size requirements for a direct-sequence code-division multiple-access (DS-CDMA) cellular system.

AB - Cell sectorization is used extensively to increase the capacity of cellular systems; however, intersector interference caused by nonideal sector antennas limits full realization of sectorization benefits. In this paper, we propose a new technique for sector beam synthesis using phased antenna arrays. We adopt the criterion of minimizing intersector interference, subject to a peak-to-peak ripple constraint on the in-sector power pattern. Spectral factorization permits a reparameterization yielding an easily solved fractional linear program. The proposed procedure accommodates nonisotropic antenna elements, arbitrary element spacing, and arbitrary sector boundaries, but is limited to uniformly spaced linear arrays. To demonstrate the utility of the proposed method, it is used to predict antenna array size requirements for a direct-sequence code-division multiple-access (DS-CDMA) cellular system.

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Sector beam synthesis for cellular systems using phased antenna arrays

Abstract

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