ANALYSIS OF QUALITY OF SERVICE IN MULTI-HOP WIRELESS NETWORKS

Abstract

The article is devoted to the analysis of the quality of service of wireless networks, since this issue in the modern world is becoming an increasingly important aspect for users and in the world of modern technologies. Ensuring the quality of service (QoS ‒ Quality of Service) in wireless networks is of particular importance, as they are used to transmit data and ensure communication between different devices and users, ensuring connection stability, speed of information packet transmission, transmission security, confidentiality and traffic prioritization, that is sent.
Among the new generation wireless networks, multi-hop wireless networks have received special attention in recent years. Since multi-hop wireless networks are significantly different from wireless local area networks, the research carried out in this article was focused on finding solutions aimed at multi-hop wireless networks, since quality of service assurance in these networks has not been fully investigated from the point of view of emerging problems of hidden/ open stations, unpredictability of the wireless environment, node mobility and energy limitations.
The paper describes the complexity of providing QoS in multi-hop wireless networks and proposes an option to provide QoS in multi-hop wireless networks from a multi-level point of view. In addition, QoS solutions specific to wireless networks are presented. Namely, QoS solutions for the Media Access Control layer (MAC), solutions based on resource reservation at the network level, stateless QoS solutions at the network level, multi-channel QoS routing, QoS frameworks, QoS solutions for wireless mesh networks.