Efficient bandwidth utilization in LambdaGrids using pricing incentives

Authors:
Sumit Naiksatam;Stephen A. Chiappari;Silvia Figueira
Affiliations:
Department of Computer Engineering, Santa Clara University, Santa Clara, CA, 95053-0566, United States;Department of Applied Mathematics, Santa Clara University, Santa Clara, CA 95053-0566, United States;Department of Computer Engineering, Santa Clara University, Santa Clara, CA, 95053-0566, United States
Venue:
Computer Networks: The International Journal of Computer and Telecommunications Networking
Year:
2007

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Abstract

The ability to reserve network bandwidth is a critical factor for the success of high-performance grid applications. Reservation of lightpaths in dynamically switched optical networks facilitates guaranteed bandwidth. However, reservation of bandwidth can often lead to bandwidth fragmentation which significantly reduces system utilization and increases the blocking probability of the network. An interesting approach to mitigating this problem is to induce quasi-flexibility in the user requests. A smart scheduling strategy can then exploit this quasi-flexibility and optimize bandwidth utilization. However, there has to be an incentive for flexibility from the user's perspective as well. In this paper, we explore how the network service provider (NSP) can influence user flexibility by dynamically engineering pricing incentives. Ultimately, user flexibility will lead to efficient network utilization, reduce the price for the users, and increase the revenue for the NSP.