Impact of QoS on Internet User Welfare

  • Galina Schwartz
  • Nikhil Shetty
  • Jean Walrand
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5385)


In this paper, we investigate the welfare effects of transition from a single-service class to two-service classes in the Internet. We consider an ISP who offers network access to a fixed user base, consisting of users who differ in their quality requirements and willingness to pay for the access. We model user-ISP interactions as a game in which the ISP makes capacity and pricing decisions to maximize his profits and the users only decide which service to buy, if any. Our model provides robust pricing for networks with single- and two-service classes. Our results indicate that transition to multiple service classes is socially desirable, but could be blocked due to the unfavorable distributional consequences that it inflicts on the existing network users. To facilitate the transition, we propose a simple regulatory tool that alleviates the political economic constraints and thus makes the transition feasible.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Galina Schwartz
    • 1
  • Nikhil Shetty
    • 1
  • Jean Walrand
    • 1
  1. 1.Department of Electrical Engineering and Computer Sciences (EECS)University of California BerkeleyBerkeleyUSA

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