Interference model and antenna parameters setting effects on 4G-LTE networks coverage

Nourredine Tabia (1) , Alexandre Gondran (2) , Oumaya Baala (1) , Alexandre Caminada (1)

1 UTBM - Université de Technologie Belfort-Montbéliard
2 MAIAA - ENAC - Laboratoire de Mathématiques Appliquées, Informatique et Automatique pour l'Aérien

The currently emerging Long Term Evolution 4G-LTE cellular networks are based on new technique of transmission called the Orthogonal Frequency Division Multiple Access (OFDMA). This paper shows the interest of robust approach due to the uncertainty of traffic distribution. First, we develop and validate the interference model based on SINR metric for the deployment of the LTE network, and then we use greedy algorithms to show how frequency and tilt parameter settings can impact the coverage performance metric. Two frequency schemes have been compared to validate our model: the frequency reuse 1 scheme whereby the whole available bandwidth is used in each cell/sector and the frequency reuse 3 scheme in which the entire bandwidth is divided into 3 non-overlapping groups and assigned to 3 co-site sectors within each cell.

Mots clés: LTE; SINR; interference; frequency optimization; tilt optimization; robustness

Domaines: Mathématiques [math]; Optimisation et contrôle [math.OC]

Nourredine Tabia, Alexandre Gondran, Oumaya Baala, Alexandre Caminada. Interference model and antenna parameters setting effects on 4G-LTE networks coverage. PM2HW2N 2012, 7th ACM workshop on Performance Monitoring and Measurement of Heterogeneous Wireless and Wired Networks, Oct 2012, Paphos, Cyprus. pp 175-182, ⟨10.1145/2387191.2387215⟩. ⟨hal-00938863⟩