IEEE 2014 DOTNET NETWORKING PROJECTS Pricing under constraints_in_access_networks_revenue_maximization_and_congestion_management
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Published on: Mar 4, 2016
Transcripts - IEEE 2014 DOTNET NETWORKING PROJECTS Pricing under constraints_in_access_networks_revenue_maximization_and_congestion_management
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PRICING UNDER CONSTRAINTS IN ACCESS NETWORKS
REVENUE MAXIMIZATION AND CONGESTION MANAGEMENT
This paper investigates pricing of Internet connectivity services in the context of a
monopoly ISP selling broadband access to consumers. We first study the optimal
combination of flat-rate and usage-based components in access price for
maximization of ISP revenue subject to a capacity constraint on the resulting data-rate
demand. Next, we consider time-varying consumer utilities for broadband data
rates that can result in uneven demand for data-rate over time. Practical
considerations limit the viability of altering prices over time to smoothen out the
demanded data-rate. Despite such constraints on pricing, our analysis reveals that
the ISP can retain the revenue by setting a low usage fee and dropping packets of
consumer demanded data that exceed capacity. We also characterize the loss in ISP
revenue if regulatory attention prevents such congestion management. Regulatory
requirements further impose limitations on price discrimination across consumers,
and we derive the revenue loss to the ISP from such restrictions. We then develop
partial recovery of revenue loss through non-linear pricing that does not explicitly
price discriminate across consumers. While determination of the access price is
ultimately based on additional considerations beyond the scope of this paper, the
systematic analysis here can be a useful tool to structure access price in broadband
The ubiquitous availability of Internet connectivity requires technological
innovations as well as an understanding of economics and pricing of connectivity
under practical constraints. Two related aspects of connectivity economics are the
questions of “whom to price?” and “how to price?”. The first question is addressed
in previous works, including our recent one, in the context of two-sided pricing by
investigating the appropriate price split between end-users and content (or
The present work investigates several aspects of the second question in the context
of one-sided pricing where the consumer of connectivity could be either the end-user
or the application provider. This paper provides a systematic framework to
analyze revenue maximization for a monopoly ISP operating a single bottleneck
link with fixed capacity. Although Internet data flows along multiple links on a
route between source and destination, the end-user access link is typically the most
constrained for capacity, and the major contributor to the connectivity price. As
such, the analysis in this paper has practical implications applicable to pricing of
broadband access links including cable and wireless broadband.
Pricing content-providers for connectivity to end- users and setting connection
parameters based on the price is an evolving model on the Internet. The implications are heavily
debated in telecom policy circles, and some advocates of "Network Neutrality" have opposed
price based differentiation in connectivity. However, pricing content providers can possibly
subsidize the end-user's cost of connectivity, and the consequent increase in end-user demand
can benefit ISPs and content providers. The framework generalizes the well-known utility
maximization based rate allocation model, which has been extensively studied as interplay
between the ISP and the end-users, to incorporate pricing of content-providers. We derive the
resulting equilibrium prices and data rates in two different ISP market conditions: competition
and monopoly. Network neutrality based restriction on content-provider pricing is then modeled
as a constraint on the maximum price that can be charged to content-providers. We demonstrate
that, in addition to gains in total and end- user surplus, content-provider experiences a net surplus
from participation in rate allocation under low cost of connectivity. The surplus gains are,
however, limited under monopoly conditions in comparison to competition in the ISP market.
1.2 PROPOSED SYSTEM:
Although Internet data flows along multiple links on a route between source and
destination, the end-user access link is typically the most constrained for capacity, and the major
contributor to the connectivity price. Consumer data rate allocation can be determined by
socially optimal prices in a competitive market on the one hand, or the revenue maximizing
prices in a monopoly ISP market on the other hand. Access pricing is typically in the form of a
flat rate that is independent of usage, or a usage based price, or some combination of the two
pricing schemes. We quantify that a significant component of the monopoly ISP revenue is from
flat price if consumer price sensitivity is low and through usage price if consumer price
sensitivity is high. Flat pricing is generally considered as the preferred choice of consumers, but
our analysis indicates that flat pricing can lead to a significant loss of consumer net-utility,
particularly when the consumers have low price sensitivity.
Consumer demand for data changes over hours of the day and days of the week, resulting
in peak usage of networks that can be significantly high compared to average usage. Access ISPs
face a mismatch between their revenue from average usage and cost incurred from peak usage of
networks. Considerations on billing management and price simplicity discourage frequent
changes in prices over time. This limitation on ISP’s ability to manage peak aggregate demand
through price variations can result in potential loss of revenue. Our analysis reveals that, despite
the lack of flexibility to alter the time-dependent consumption of consumers through price
variations, the ISP can retain the revenue through congestion management by dropping packets
of consumer demanded data that exceed available capacity. We quantify the intuition that the
revenue retention can be achieved through a combination of low usage fee that ensures sufficient
consumer demand at all times, and a high flat fee that captures the remaining consumer net
utility from the server data rates.
However, ISPs face regulatory hurdles, including “network neutrality” concerns that do
not encourage congestion management by selectively dropping packets of consumer demanded
data. The recent FCC notice proposes draft language to codify a principle that would require a
broadband ISP to treat lawful content, applications, and services in a nondiscriminatory manner.
In a related decision, the CRTC recognizes that “economic practices are the most transparent
Internet traffic management practices”. It further notes that such economics based congestion
management practices “match consumer usage with willingness to pay, thus putting users in
control and allowing market forces to work”.
2. SYSTEM SPECIFICATION
• System : Pentium IV 2.4 GHz.
• Hard Disk : 40 GB.
• Floppy Drive : 1.44 Mb.
• Monitor : 15 VGA Colour.
• Mouse : Logitech.
• RAM : 256 Mb.
• Operating system : - Windows XP Professional.
• Front End : - Asp .Net 2.0.
• Coding Language : - Visual C# .Net.