A Comparative Study of The Proposed Methods and Approaches to Improve The Quality of Service in Networks-on-Chip

Abstract

Managing and improving the quality of service (QoS) in embedded multiprocessor systems (MPSoCs) that rely on network-on-chip (NoC) is still considered a major challenge in conjunction with running dozens of tasks at the same time, especially with the increasing number of nodes integrated on the same chip to meet the complexity of applications. This has been demonstrated in many research and academic studies through different methods and approaches. This research studied the methods and techniques proposed in previous research works in order to improve the quality of service in NoC and made a comparison between these methods in terms of their improvement rate for the quality of service parameters, which are determined by high throughput and low latency. The study concluded that modifying the link topology can reduce the amount of energy consumed by about 69.17% compared to the rates achieved by modifying the NoC network structure, modifying the routing algorithm, or modifying the router structure within the network. While the studies that modified the router structure showed lower performance in QoS when compared to modifying the general NoC network structure, which achieved the highest performance by a percentage ranging from 22% to 65% compared to the other three methods used.