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Self-Optimizing Load Balancing With Backhaul-Constrained Radio Access Networks

Abstract : Self-Organizing Network (SON) technology aims at autonomously deploying, optimizing and repairing the Radio Access Networks (RAN). SON algorithms typically use Key Performance Indicators (KPIs) from the RAN. It is shown that in certain cases, it is essential to take into account the impact of the backhaul state in the design of the SON algorithm. We revisit the Base Station (BS) load definition taking into account the backhaul state. We provide an analytical formula for the load along with a simple estimator for both elastic and guaranteed bit-rate (GBR) traffic. We incorporate the proposed load estimator in a self-optimized Load Balancing (LB) algorithm. Simulation results for a backhaul constrained heterogeneous network illustrate how the correct load definition can guarantee a proper operation of the SON algorithm.
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https://hal.inria.fr/hal-01202325
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Submitted on : Saturday, September 19, 2015 - 7:40:34 PM
Last modification on : Wednesday, February 2, 2022 - 3:54:56 PM
Long-term archiving on: : Tuesday, December 29, 2015 - 8:49:44 AM

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Abdoulaye Tall, Zwi Altman, Eitan Altman. Self-Optimizing Load Balancing With Backhaul-Constrained Radio Access Networks. IEEE Wireless Communications Letters, IEEE comsoc, 2015, 4 (6), pp.645-648. ⟨10.1109/LWC.2015.2477499⟩. ⟨hal-01202325⟩

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