A First Look at Inter-Cell Interference in the Wild

Fuente: arXiv
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Autores principales: Ding, Daqian, Pi, Yibo, Chen, Cailian
Formato: Preprint
Publicado: 2025
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author Ding, Daqian
Pi, Yibo
Chen, Cailian
author_facet Ding, Daqian
Pi, Yibo
Chen, Cailian
contents In cellular networks, inter-cell interference management has been studied for decades, yet its real-world effectiveness remains under-explored. To bridge this gap, we conduct a first measurement study of inter-cell interference for operational 4G/5G networks. Our findings reveal the prevalence of inter-cell interference and a surprising absence of interference coordination among operational base stations. As a result, user equipments experience unnecessary interference, which causes significant signal quality degradation, especially under frequency-selective channel fading. We examine the inter-cell interference issues from four major perspectives: network deployment, channel assignment, time-frequency resource allocation, and network configuration. In none of these dimensions is inter-cell interference effectively managed. Notably, even when spectrum resources are underutilized and simple strategies could effectively mitigate inter-cell interference, base stations consistently prioritize using the same set of time-frequency resources, causing interference across cells. Our measurements reveal substantial opportunities for improving signal quality by inter-cell interference management.
format Preprint
id arxiv_https___arxiv_org_abs_2508_20060
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A First Look at Inter-Cell Interference in the Wild
Ding, Daqian
Pi, Yibo
Chen, Cailian
Networking and Internet Architecture
In cellular networks, inter-cell interference management has been studied for decades, yet its real-world effectiveness remains under-explored. To bridge this gap, we conduct a first measurement study of inter-cell interference for operational 4G/5G networks. Our findings reveal the prevalence of inter-cell interference and a surprising absence of interference coordination among operational base stations. As a result, user equipments experience unnecessary interference, which causes significant signal quality degradation, especially under frequency-selective channel fading. We examine the inter-cell interference issues from four major perspectives: network deployment, channel assignment, time-frequency resource allocation, and network configuration. In none of these dimensions is inter-cell interference effectively managed. Notably, even when spectrum resources are underutilized and simple strategies could effectively mitigate inter-cell interference, base stations consistently prioritize using the same set of time-frequency resources, causing interference across cells. Our measurements reveal substantial opportunities for improving signal quality by inter-cell interference management.
title A First Look at Inter-Cell Interference in the Wild
topic Networking and Internet Architecture
url https://arxiv.org/abs/2508.20060