Encyclopedia of Wireless Networks

Living Edition
| Editors: Xuemin (Sherman) Shen, Xiaodong Lin, Kuan Zhang

Preferences and Utility Functions

Living reference work entry
DOI: https://doi.org/10.1007/978-3-319-32903-1_21-1

Synonyms

Definition

Utility functions are a mathematical representation of an individual’s preferences for different goods and services.

Motivation

The notion of utility is motivated by a basic problem faced when allocating limited resources (such as bandwidth or power) to users of a wireless network: How should one account for differences in the users’ needs for these resources? These differences can arise due to users running different applications that require different quality of service (QoS) levels or even for the same application due to differences in how users perceive changes in QoS. Moreover, modern wireless networks exist in evolving market structures with multiple competing firms using heterogeneous technologies. Understanding how this competition and the regulation around it impact end users again requires modeling user preferences for different services. The concept of utility is a way of providing a common metric for...

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Electrical Engineering and Computer ScienceNorthwestern UniversityEvanstonUSA

Section editors and affiliations

  • Jianwei Huang
    • 1
  • Yuan Luo
  1. 1.Department of Information EngineeringThe Chinese University of Hong Kong, StainHong KongChina