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Faced with the unrelenting traffic growth and rising costs, access ISPs (Internet Service Providers) realize that their traditional revenue model of flat subscription fees is unsustainable. Regulatory concerns, e.g., about content-specific charging, constrain the ISPs' search for new revenue sources. This paper analyzes a revenue model where an access ISP acts as a publisher of ads to users who explicitly...
Content delivery networks (CDNs) deploy globally distributed systems of caches in a large number of autonomous systems (ASes). It is important for a CDN operator to satisfy the performance requirements of end users, while minimizing the cache deployment cost. In this paper, we study the cache deployment optimization (CaDeOp) problem of determining how much server, energy, and bandwidth resources to...
A majority of Internet service providers (ISPs) support connectivity to the entire Internet by transiting their traffic via other providers. Although the transit prices per megabit per second (Mbps) decline steadily, the overall transit costs of these ISPs remain high or even increase due to the traffic growth. The discontent of the ISPs with the high transit costs has yielded notable innovations...
This paper presents an economic perspective on traffic attraction and countermeasures. The results demonstrate that tier-1, tier-2, and tier-3 networks have significant financial incentives to attract traffic. In comparison to ASes from the lower tiers, the tier-1 networks are in a stronger position to benefit from traffic attraction with respect to: (a) the degree of the attainable gain, (b) impact...
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