Enhancing network performance in structured geometric network topologies: strategies for quality-of-service optimisation

Abstract

The topology of a computer network is the basis for building a high-capacity, low-congestion network infrastructure. At present, the research on computer network topologies rests mainly on typically unstructured networks such as mesh networks. Our initial research presented in [1] explored the potential of using structured geometric network infrastructure designs to improve network performance. In this paper, we take our study forward to evaluate the performance of structured geometric network infrastructure designs under three QoS disciplines, namely weighted fair queuing (WFQ), priority queuing (PQ) and modified weighted round robin (MWRR). In this paper, we simulate structured geometric and unstructured network structures using Riverbed Modeler 18.9 to evaluate network performance. The simulation results illustrate that the structured geometric network topologies have better results than the unstructured network in response time and network delay under a high-load configuration, and the QoS algorithm provides advantages for voice services by prioritising the transmission of vital services.