Smart Antennas in a WCDMA Radio Network System: Modeling and Evaluations

Osseiran, Afif; Logothetis, A.

doi:10.1109/tap.2006.883963

Cited by 22 publications

(13 citation statements)

References 30 publications

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“…Due to its different physical layer, the findings of [7]- [9] do not apply. In OFDMA networks, the performance gain of HOS with multiple antennas was evaluated in [10].…”

Section: Introductionmentioning

confidence: 97%

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Analytical Evaluation of Higher Order Sectorization, Frequency Reuse, and User Classification Methods in OFDMA Networks

Cheng

Tang

et al. 2016

IEEE Trans. Wireless Commun.

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Abstract-Higher order sectorization (HOS), which splits macrocells into a larger number of smaller sectors, are receiving significant interest as a cost-effective means of improving network capacity. Potentially, the capacity gain with HOS is proportionally linear to the number of sectors per cell due to spatial reuse, but factors such as non-ideal antenna radiation patterns together with inter-cell interference can significantly reduce this capacity gain. We develop a statistical model to theoretically characterize the performance of HOS deployments in wireless networks using orthogonal frequency division multiplex access (OFDMA). Moreover, a fractional frequency reuse scheme is considered, which aids to mitigate inter-cell interference. The model provides a fast and effective tool for studying network performance in terms of user signal quality, site throughput and outage probability, and it can be used to speed up network planning and optimization. In addition, we consider the impact of user classification methods in the analysis, and propose a new spectrum efficiency-based user classification method that improves resource utilization and allocation fairness. Performance results indicate that the proposed model is accurate, and shows a diminishing performance gain of HOS deployments with the number of antennas. The proposed user classification method improves network performances with respect to state of the art approaches.

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“…Due to its different physical layer, the findings of [7]- [9] do not apply. In OFDMA networks, the performance gain of HOS with multiple antennas was evaluated in [10].…”

Section: Introductionmentioning

confidence: 97%

“…In [8], the performance of a real WCDMA network with 6-sector BSs and fixed antennas beams was evaluated under non-homogeneous network deployments. In [9], similar use cases as in [8] were investigated considering smart antennas.…”

Section: Introductionmentioning

confidence: 99%

Analytical Evaluation of Higher Order Sectorization, Frequency Reuse, and User Classification Methods in OFDMA Networks

Cheng

Tang

et al. 2016

IEEE Trans. Wireless Commun.

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“…References [6], [7] consider the impact of angular spread (the effect of local scatters around the antenna increasing the effective beamwidth of the antenna) on the capacity gains of three, six and twelve sector sites and use a homogeneous 19 site network simulation setup very similar to that proposed by 3GPP in [8] but with a 3 km inter-site distance. Traffic is spread uniformly across the simulation area and capacity gains over a three site configuration (3x63 o ) of 1.8 and 3 are reported for the 6x35 o and 12x20 o configurations respectively.…”

Section: Introductionmentioning

confidence: 99%

Higher Order Horizontal Sectorization Gains for 6, 9, 12 and 15 Sectored Cell Sites in a <inline-formula> <tex-math notation="LaTeX">$\mbox{3}\mbox{GPP}/\mbox{HSPA}+$</tex-math> </inline-formula> Network

Joyce

Morris

Brown

et al. 2016

IEEE Trans. Veh. Technol.

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“…The development of low cost DSPs will allow smart antennas also to be used in a wide range of wireless applications such as worldwide interoperability for microwave access (WiMax) and voice over wireless fidelity (VoWi-Fi). The advantages of smart antennas have already been exploited in various wireless technologies including OFDM [2], WCDMA [3], and mobile ad-hoc networks (MANETs) [4].…”

Section: Introductionmentioning

confidence: 99%

Displaced Sensor Array for Improved Signal Detection Under Grazing Incidence Conditions

Shubair¹,

Nuaimi²

2008

PIER

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Abstract-This paper proposes a displaced sensor array (DSA) configuration for estimating the angles of arrival of narrowband sources arriving at grazing incidence directions. Unlike the conventional uniform linear array (ULA) where all the array elements are aligned along one axis, the proposed DSA configuration comprises two displaced ULAs aligned on two parallel axes in the vertical plane. The steering vectors of the two parallel arrays differ from each other by only two multiplicative phase terms that represent the space factors due to the vertical separation and horizontal displacement of the two arrays. This makes the computational load of using MUSIC algorithm with the proposed DSA configuration identical to that of ULA yet the accuracy is much higher especially for cases involving narrowband sources arriving at grazing incidence angles. Simulation results obtained show that the proposed DSA configuration outperforms the conventional ULA in terms numerical accuracy and angular resolution.

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Smart Antennas in a WCDMA Radio Network System: Modeling and Evaluations

Cited by 22 publications

References 30 publications

Analytical Evaluation of Higher Order Sectorization, Frequency Reuse, and User Classification Methods in OFDMA Networks

Analytical Evaluation of Higher Order Sectorization, Frequency Reuse, and User Classification Methods in OFDMA Networks

Higher Order Horizontal Sectorization Gains for 6, 9, 12 and 15 Sectored Cell Sites in a <inline-formula> <tex-math notation="LaTeX">$\mbox{3}\mbox{GPP}/\mbox{HSPA}+$</tex-math> </inline-formula> Network

Displaced Sensor Array for Improved Signal Detection Under Grazing Incidence Conditions

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