Hybrid Joint-Transmission Multi-Point Coordination for Inter-Cell Interference Management

Christopher Merlhe (1, 2, 3) , Cédric Gueguen (1, 2, 3) , Xavier Lagrange (2, 4)

1 IRISA-D2 - RÉSEAUX, TÉLÉCOMMUNICATION ET SERVICES
2 ADOPNET - Advanced technologies for operated networks
3 IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires
4 IMT Atlantique - SRCD - Département Systèmes Réseaux, Cybersécurité et Droit du numérique

In wireless networks, the transmission efficiency is highly impacted by attenuations such as: path-loss, shadowing, multi-path fading and interference. At cell edges, mobiles are far from their access point and close to neighboring cells, leading to high path-loss and high magnitude of interference. Consequently, ensuring high spectral efficiency is necessary to guarantee an appropriate Quality of Service (QoS), especially at edges. To cope with this crucial issue, this work investigates the benefits of the Joint Transmission Coordinated Multi-Point (JT-CoMP) clustering to mitigate Inter Cell Interference (ICI). This paper proposes the Hybrid Joint-Transmission Coordinated MultiPoint algorithm (H-JT-CoMP). This solution dynamically performs its ICI management according to the Chanel State Information (CSI). This allows to make a wise CoMP usage according to the magnitude of interference received. Performance evaluation highlights an increased QoS and system capacity with a better fairness between inner and edges of the cell.

Mots clés: Wireless Network; Coordinated MultiPoint; Interference management; Cell-less; Opportunistic Scheduling

Domaines: Réseaux et télécommunications [cs.NI]

Christopher Merlhe, Cédric Gueguen, Xavier Lagrange. Hybrid Joint-Transmission Multi-Point Coordination for Inter-Cell Interference Management. VTC2021-Spring : IEEE 93rd Vehicular Technology Conference, Apr 2021, Helsinki, Finland. ⟨10.1109/VTC2021-Spring51267.2021.9448660⟩. ⟨hal-03260374⟩