Interference modeling and analysis in two-hop cellular network with fixed relays in FDD mode

TLDR

Relaying networks are expected to play an important role in future wireless systems. This paper proposes a two‑hop cellular network scheme using fixed relay nodes. The authors analyze co‑channel interference and the resulting SIR at both base stations and fixed relay nodes under this scheme. Theoretical and simulation results demonstrate that employing relays significantly improves SIR, and that FRN antenna height and the cell radii of BS and FRN strongly affect the received SIR.

Abstract

Relaying network is expected to play an important role in the future wireless network. This paper presents a scheme of two-hop cellular network with fixed relay nodes (FRN). Based on this scheme, co-channel interference and SIR received by BS and FRN are analyzed. Both the theoretical analysis and simulation results show that the SIR can be improved significantly when relays are employed in the network. We also show that the antenna height of FRN and the cell radius of BS and FRN influence SIR received by BS and FRN greatly.