Performance analysis of multi-party conferencing in IMS using vacation queues

2014 IEEE International Conference on Advanced Networks and Telecommuncations Systems (ANTS) Pub Date : 2014-12-01 DOI:10.1109/ANTS.2014.7057259

G. Mishra, S. Dharmaraja, Subrat Kar

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引用次数: 4

Abstract

The IP multimedia subsystem provides a platform for group communication services using Session Initiation Protocol (SIP). SIP supports the services where participation of multiple users is involved. The centralized conferencing framework limits the ability to have large number of participants because of the overhead on the server. In this paper, an efficient solution for enhancing the capability of the system to handle multiple requests at a time is provided by presenting a queueing model for SIP message aggregation at the edge-proxies. This queueing system is analysed as a vacation queue with batch arrival and batch service to describe the arrival and processing of bulk SIP messages. The steady-state results for QoS-aware SIP signaling system are obtained from the queueing model. Further these results are verified using NS-2 simulation. In addition, the optimal value of the timer and threshold values that dynamically controls the SIP message queue associated with QoS constraints are obtained using numerical optimization technique.

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IMS中使用休假队列的多方会议性能分析

IP多媒体子系统为使用会话发起协议(SIP)的组通信业务提供了一个平台。SIP支持涉及多个用户参与的业务。由于服务器上的开销，集中式会议框架限制了拥有大量参与者的能力。本文通过在边缘代理上提出SIP消息聚合的排队模型，为提高系统同时处理多个请求的能力提供了一种有效的解决方案。该排队系统被分析为具有批量到达和批量服务的休假队列来描述批量SIP消息的到达和处理。利用排队模型得到了qos感知SIP信令系统的稳态结果。进一步利用NS-2仿真验证了这些结果。此外，利用数值优化技术得到了动态控制与QoS约束相关联的SIP消息队列的定时器和阈值的最优值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 IEEE International Conference on Advanced Networks and Telecommuncations Systems (ANTS)

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