A Survey on Bilateral Multi-Round Cloud-SLA Negotiation Strategies
Benedikt Pittl, Werner Mach, Erich Schikuta

TL;DR
This paper surveys bilateral multi-round negotiation strategies in cloud markets, analyzing existing research to identify trends, gaps, and formal descriptions, and provides recommendations for industry adoption.
Contribution
It offers a comprehensive review of negotiation strategies in cloud resource trading and proposes guidelines for their formalization and implementation.
Findings
Identified key trends and gaps in current negotiation strategies.
Analyzed formalism used to describe negotiation strategies.
Provided recommendations to facilitate industry adoption.
Abstract
Today, static cloud markets where consumers purchase services directly from providers are dominating. Thus, consumers neither negotiate the price nor the characteristics of the service. In recent years, providers have adopted more dynamic trading mechanisms, as e.g. Amazon's EC2 platform shows: In addition to the reservation marketspace and the on-demand marketspace, Amazon offers a spot marketspace where consumers can bid for virtual machines. This spot marketspace was extended with spot blocks, and recently Amazon reworked the bidding options. In addition, other cloud providers, such as Virtustream, adopt dynamic trading mechanisms. The scientific community envisions autonomous multi-round negotiations for realizing future cloud marketspaces. Consequently, consumers and providers exchange offers and counteroffers to reach an agreement. This helps providers increase the utilization of…
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