Capacity of VoIP over HSDPA with Frame Bundling

Yong-Seok KIM  

IEICE TRANSACTIONS on Communications   Vol.E89-B   No.12   pp.3450-3453
Publication Date: 2006/12/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.12.3450
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
VoIP,  HSDPA,  frame-bundling,  

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In this letter, we evaluate the capacity of voice over internet protocol (VoIP) services over high-speed downlink packet access (HSDPA), in which frame-bundling (FB) is incorporated to reduce the effect of relatively large headers in the IP/UDP/RTP layers. Also, a modified proportional pair (PF) packet scheduler design supporting for VoIP service is provided. The main focus of this work is the effect of FB on system outage based on delay budget in radio access networks. Simulation results show that VoIP system performance with FB scheme is highly sensitive to delay budget. We also conclude that HSDPA is attractive for transmission of VoIP if compared to the circuit switched (CS) voice that is used in WCDMA (Release'99).