An SMDP-based Resource Management Scheme for Distributed Cloud Systems

TL;DR

This paper presents a resource management scheme for distributed cloud systems that optimizes service acceptance and resource allocation to maximize system utility and user experience, considering service migration and request types.

Contribution

It introduces a novel SMDP-based resource management scheme that effectively handles service migration and request acceptance in geographically distributed cloud environments.

Findings

Significantly improves system utility and user experience.

Effectively manages service migration and request acceptance.

Reduces rejection probability of service requests.

Abstract

In this paper, the resource management problem in geographically distributed cloud systems is considered. The Follow Me Cloud concept which enables service migration across federated data centers (DCs) is adopted. Therefore, there are two types of service requests to the DC, i.e., new requests (NRs) initiated in the local service area and migration requests (MRs) generated when mobile users move across service areas. A novel resource management scheme is proposed to help the resource manager decide whether to accept the service requests (NRs or MRs) or not and determine how much resources should be allocated to each service (if accepted). The optimization objective is to maximize the average system reward and keep the rejection probability of service requests under a certain threshold. Numerical results indicate that the proposed scheme can significantly improve the overall system utility as well as the user experience compared with other resource management schemes.