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Hybrid Amplitude Control Antenna Array System for Energy Efficient W-CDMA Network with Adaptive Coverage and Capacity

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A Correction to this article was published on 12 January 2018

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Abstract

This paper introduces a novel technique and mathematical formulation of two dimensional elastic footprint variations and adaptive sector configuration variations by using a hybrid adaptive amplitude control antenna array system. The antenna array system can control the elevation beam-widths from 6.84° to 13° and the azimuth beam-widths from 33° to 93° for obtaining the adaptive capacity and coverage. The work illustrates the application of the antenna array system in the energy efficient W-CDMA network. The antenna array half-power beam width variation is achieved by using the antenna array amplitude control and co-located multiple antenna array switching. The Node-Bs can adaptively switch to three, four, five, six and non uniform sector configurations with the antenna array beam width control and adaptive neighbor relations. Sector configurations will vary according to the pre-defined specific traffic loading percentages out of Node-B’s total channel capacity to reduce the energy consumption of the entire network. The paper introduces an adaptive footprint overlaps shifting technique, where the sector with less traffic load will expand its footprint towards the sector with higher traffic load and the sector with higher traffic load will shrink its footprint by maintaining a fixed footprint overlaps to improve the coverage and the capacity of the network. The footprints overlap shifting is applicable only for the active sector antennas facing each other. The results confirm that the proposed antenna array system outperforms the automatic tilt optimization and can control coverage, capacity and improve the energy efficiency of the W-CDMA network.

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  • 12 January 2018

    In the original publication, the reference to Fig. 41 in the second sentence in section 8.1 is incorrect. It should refer to Fig. 42.

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Acknowledgements

This work was partially supported by the Government of Odisha, India under the scheme Orissa Youth Innovation Fund-2016 on 05-March-2016.

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  1. Cuttack, Odisha, 753003, India

    Archiman Lahiry

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  1. Archiman Lahiry
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Correspondence to Archiman Lahiry.

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A correction to this article is available online at https://doi.org/10.1007/s11277-018-5270-z.

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Lahiry, A. Hybrid Amplitude Control Antenna Array System for Energy Efficient W-CDMA Network with Adaptive Coverage and Capacity. Wireless Pers Commun 99, 121–158 (2018). https://doi.org/10.1007/s11277-017-5032-3

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