An Automatic PCI Assignment Framework for Femtocells in LTE Networks

Sedláček, Marek; Bestak, Robert

doi:10.1007/978-3-319-65960-2_14

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2019

2022

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“…Present researches investigated below have provided numbers of contributions on PCI planning problem. A centralized automatic PCI configuration scheme for femtocell networks to avoid the PCI conflict and confusion [9]. Moreover, the researchers purposed an intelligent genetic algorithm in [10] to reduce the PCI mod three interference.…”

Section: Introductionmentioning

confidence: 99%

PCI Planning Based on Local Search in LTE Network

Gui¹,

Gao²,

Jiang³

2019

dtcse

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The evolution of communication networks has made network system increasingly enormous and complex in recent years. Inter-cell interference (ICI) in the denser network will degrade the throughput and affect the Signal-to-Interference-plus-Noise Ratio in the Long Term Evolution (LTE) network. Assigning the Physical Cell ID (PCI) to cells in a proper way is effective to reduce ICI in the downlink network. In this work, the aim is to consider PCI collision, confusion and Reference Signal Collision (CRS) between neighbor cells comprehensively. For the purpose, a local search algorithm is proposed and its time complexity is O(Km 3 n 3 ) in the worst case. Compared with the random plan, numerical results of simulation experiment demonstrate the effectiveness and advantage of local search.

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Section: Introductionmentioning

confidence: 99%