ABSTRACT
In recent years, quality of service (QoS) in mobile ad hoc networks (MANETs) as a research topic has started to receive attention from a growing number of researchers. Future MANETs are expected to support a wide range of real-time multimedia applications. The requirements for timely delivery of multimedia traffic raise new challenges for next generation MANETs. QoS routing is the first step toward achieving guaranteed end-to-end QoS in MANETs. A QoS routing protocol selects network routes with sufficient resources for the satisfaction of the requested QoS parameters. The goal of QoS routing solutions is to satisfy the QoS requirements for each admitted connection, while achieving the global efficiency in resource utilization. In this chapter, we present an overview of QoS routing protocols in MANETs. We discuss several problems that arise in achieving QoS routing and review proposed QoS routing solutions. We present the strengths and the weaknesses of the different QoS routing strategies and point out possible future directions in the QoS routing problem in MANETs.
25.1 Introduction
