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Alan T Litchfield

Work place: Auckland University of Technology, New Zealand

E-mail: alan.litchfield@aut.ac.nz

Website:

Research Interests: Computing Platform, Mathematics of Computing

Biography

Dr Alan T Litchfield is Director of Service and Cloud Computing Research Lab (SCCRL) of School of Computer and Mathematical Sciences (SCMS) at Auckland University of Technology. Dr Litchfield is Academic Leader of the Master of Service Oriented Computing program, President of the Association for Information Systems Special Interest Group on Philosophy in Information Systems, a Member of the Institute for IT Professionals and a partner in a consulting firm that specializes in providing services to corporates and government agencies.

Author Articles
VoIP Performance Analysis over IPv4 and IPv6

By Monjur Ahmed Alan T Litchfield Shakil Ahmed Adnan Mahmood Emran Hossain Meazi

DOI: https://doi.org/10.5815/ijcnis.2014.11.06, Pub. Date: 8 Oct. 2014

The advance of technology often requires the emergence of complementary technologies, of which the transition from IPv4 to IPv6 presents a significant example. The move of protocol has focussed attention on the level of performance for associated technologies. Among the many Internet applications, in contemporary digital communications, VoIP stands apart in importance. This paper presents a performance analysis of VoIP using IPv4 and IPv6. Using OPNET to simulate the protocols and to investigate areas of performance weakness.

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