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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Analyzing VoIP Capacity with Delay Guarantee for Integrated HSPA Networks
verfasst von : Shin-Hua Yang, Shun-Ren Yang, Chien-Chi Kao
Erschienen in: Communication and Networking
Verlag: Springer Berlin Heidelberg
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Voice over IP (VoIP) is a key driver in the evolution of voice communications, and the high transmission rate property of High Speed Packet Access (HSPA) is expected to satisfy the strict delay requirements of VoIP. Therefore, the aim of this paper is to evaluate the performance of VoIP service in HSPA network. This paper presents a mathematical model for VoIP capacity in HSPA under the constraints of delay threshold and voice quality requirements. This study also analyzes the impact of scheduling schemes, the user’s channel quality, and variations in packet bundle size on VoIP performance. These results are derived from simulation results, which also validate the correctness of the proposed analysis model and show that VoIP performance is limited by uplink transmission technology. Based on the E-model, this study concentrates on each VoIP connection’s quality in HSUPA network.