Abstract

The IP Multimedia Subsystem (IMS) is recently expected to have the major architecture framework to be involved in the Next Generation Network. IMS works to bridge the multimedia communication among variety of applications over Internet. IMS bears its multimedia signals and stream through different means of transport protocols; TCP, UDP, and SCTP. TCP is a connection-oriented protocol that provides reliable data delivery and congestion control. To setup connection with TCP, IMS entities requires extra operations to complete, that operation process called (worker process) costs the multimedia server extra overload and delay. This paper investigates the indirect impacts of TCP connection that resulted from the Call Session Control Function (CSCF) servers when it deal with video communication. Two parameters are evaluated in experiment which are CPU usage and response time with two different scenarios. The experimental shows that outbound scenario performs better than the inbound scenario due to the extra operations required to setup new TCP connection for inbound

Highlights

  • The Internet has grown rapidly in the last decade with a big involvement of multimedia communication in the use of end user devices

  • The aim of this paper is to investigate the indirect impacts of Transmission Control Protocol (TCP) connection that result from the Call Session Control Function (CSCF) servers when dealing with video communication

  • Internet Protocol multimedia subsystem (IMS) technologies have witnessed a wide deployment in the last decade, involved as a control system for all multimedia communication

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Summary

Introduction

The Internet has grown rapidly in the last decade with a big involvement of multimedia communication in the use of end user devices. The Internet Protocol multimedia subsystem (IMS) is an architecture that has been used to work and handle the most usable services and applications on the Internet [2]. IMS systems allow service providers to provide multimedia communication (video, audio, messages), security, and multisession applications between end users [3]. In order to provide acceptable service and flexibility between end to end devices IMS networks can work with application layer, control layer, and access connectivity layer [4]. IMS systems provide the fundamental concepts of a multimedia session including registration, user location, media capability, presence service, and session negotiation and management.

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