Measurement-Based Modelling of LTE Performance in Dublin City

TL;DR

This paper presents a measurement-based model of LTE performance in Dublin, capturing link layer RTT and bandwidth characteristics across various locations and conditions for realistic application evaluation.

Contribution

It introduces a new model derived from extensive real-world LTE measurements in Dublin, enabling more accurate performance evaluation of applications.

Findings

Link layer RTT increases as signal strength decreases.

Bandwidth varies significantly with location and mobility.

Model accurately reflects real LTE performance conditions.

Abstract

LTE/4G is the next generation of cellular network which specifically aims to improve the network performance for data traffic and is currently being rolled out by many network operators. We present results from an extensive LTE measurement campaign in Dublin, Ireland using a custom performance measurement tool. Performance data was measured at a variety of locations within the city (including cell edge locations, indoors, outdoors etc) as well as for mobile users on public transport within the city. Using this data we derive a model of the characteristics of link layer RTT and bandwidth vs link signal strength. This model is suited to use for performance evaluation of applications and services, and since it is based on real measurements it allows realistic evaluation of performance.