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Quality of Service in Wireless Networks Over Unlicensed SpectrumQoS-Aware Resource Allocation

Quality of Service in Wireless Networks Over Unlicensed Spectrum: QoS-Aware Resource Allocation CHAP TE R 2 2.1 INTRODUCTION In this chapter, we explore the Quality of Service (QoS)-aware resource allocation in multi-hop wireless ad hoc networks. The reason that we investigate the QoS-aware resource allocation prob- lem in multi-hop wireless ad hoc networks is that these are complex networks within which we can manifest extensively the difficulties, inherent features, and concepts of the QoS-aware resource allocation problem and solution spaces. We present the utility-based and price-based problem formu- lations of the optimal resource allocation with QoS constraints such as rate. From these problem formulations, one can then derive and/or modify problem formulations and QoS constraints to achieve appropriate resource allocation conforming to QoS requirements in variety of wireless net- work topologies as we will discuss in Chapters 3, 4, and 5. We will consider a wireless ad hoc network where each node forwards packets to its peer nodes and each end-to-end flow traverses multiple hops of wireless links from a source to a destina- tion. The unique characteristics of multi-hop wireless networks, compared to wireline networks, show that flows compete for shared channels if they are within the interference ranges of each other (contention in the spatial domain). This presents the http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Quality of Service in Wireless Networks Over Unlicensed SpectrumQoS-Aware Resource Allocation

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Publisher
Springer International Publishing
Copyright
© Springer Nature Switzerland AG 2012
ISBN
978-3-031-01354-6
Pages
17 –33
DOI
10.1007/978-3-031-02482-5_2
Publisher site
See Chapter on Publisher Site

Abstract

CHAP TE R 2 2.1 INTRODUCTION In this chapter, we explore the Quality of Service (QoS)-aware resource allocation in multi-hop wireless ad hoc networks. The reason that we investigate the QoS-aware resource allocation prob- lem in multi-hop wireless ad hoc networks is that these are complex networks within which we can manifest extensively the difficulties, inherent features, and concepts of the QoS-aware resource allocation problem and solution spaces. We present the utility-based and price-based problem formu- lations of the optimal resource allocation with QoS constraints such as rate. From these problem formulations, one can then derive and/or modify problem formulations and QoS constraints to achieve appropriate resource allocation conforming to QoS requirements in variety of wireless net- work topologies as we will discuss in Chapters 3, 4, and 5. We will consider a wireless ad hoc network where each node forwards packets to its peer nodes and each end-to-end flow traverses multiple hops of wireless links from a source to a destina- tion. The unique characteristics of multi-hop wireless networks, compared to wireline networks, show that flows compete for shared channels if they are within the interference ranges of each other (contention in the spatial domain). This presents the

Published: Jan 1, 2012

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