Enhancing Path Selections with Interference Graphs in Multihop Relay Wireless Networks

TL;DR

This paper introduces interference graphs based on SNR models to improve path selection in multihop relay RIS-enabled wireless networks, simplifying the process and enhancing performance by accurately modeling interference effects.

Contribution

It proposes a novel interference graph approach for path selection in RIS-enabled networks, reducing complexity and improving accuracy over traditional conservative methods.

Findings

Interference graphs effectively model interference in RIS networks.

Decreased conflict ordering yields better path selection results.

The approach outperforms conservative interference tolerance methods.

Abstract

The multihop relay wireless networks have gained traction due to the emergence of Reconfigurable Intelligent Surfaces (RISs) which can be used as relays in high frequency range wireless network, including THz or mmWave. To select paths in these networks, the transmission performance plays the key network in these networks. In this paper, we enhance and greatly simplify the path selection in multihop relay RIS enabled wireless networks with what we refer to as interference graphs. Interference graphs are created based on SNR model, conical and cylindrical beam shapes in the transmission and the related interference model. Once created, they can be simply and efficiently used to select valid paths, without overestimation of the effect of interference. The results show that decreased ordering of conflict selections in the graphs yields the best results, as compared to conservative approach that tolerates no interference.