Performance analysis of secure unified communications in the VMware-based cloud

Tesfamicael, Aklilu Daniel, Liu, Vicky, & Caelli, William (2015) Performance analysis of secure unified communications in the VMware-based cloud. In 7th IEEE International Conference on Computational Intelligence and Communication Networks, 20-22 November 2015, Kolkata, India.


Unified communications as a service (UCaaS) can be regarded as a cost-effective model for on-demand delivery of unified communications services in the cloud. However, addressing security concerns has been seen as the biggest challenge to the adoption of IT services in the cloud. This study set up a cloud system via VMware suite to emulate hosting unified communications (UC), the integration of two or more real time communication systems, services in the cloud in a laboratory environment. An Internet Protocol Security (IPSec) gateway was also set up to support network-level security for UCaaS against possible security exposures. This study was aimed at analysis of an implementation of UCaaS over IPSec and evaluation of the latency of encrypted UC traffic while protecting that traffic. Our test results show no latency while IPSec is implemented with a G.711 audio codec. However, the performance of the G.722 audio codec with an IPSec implementation affects the overall performance of the UC server. These results give technical advice and guidance to those involved in security controls in UC security on premises as well as in the cloud.

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ID Code: 88906
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: unified communications (UC), UCaaS, IPSec, cloud-based UC services, security for UCaaS
Divisions: Past > Institutes > Information Security Institute
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 IEEE
Deposited On: 09 Oct 2015 00:45
Last Modified: 17 Jan 2016 04:03

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