Feng Gang National Laboratory of Communication,UESTC Aug 2017 Ver 1.4 Basics:utility function Users are assumed to have a utility function that maps from a given quality of service to a level of satisfaction,or utility Utility functions are private information Cannot compare utility functions between users Rational users take actions that maximize their utility Can determine utility function by observing preferences 2616009:Network Traffic Engineering 8:Traffic Management and Modeling Page.92616009: Network Traffic Engineering Feng Gang National Laboratory of Communication, UESTC Aug 2017 Ver 1.4 8: Traffic Management and Modeling Page.9 Basics: utility function • Users are assumed to have a utility function that maps from a given quality of service to a level of satisfaction, or utility - Utility functions are private information - Cannot compare utility functions between users • Rational users take actions that maximize their utility • Can determine utility function by observing preferences