Referenced Items are not available for this document.
Adaptive multi-rate (AMR) can be used for voice applications in UMTS systems where high spectral efficiency and system stability are required while guaranteeing; good speech quality. We investigate the trade-off between the system resource utilization and the provided quality of voice services, by proposing a method that considers both aspects of quality and capacity for the optimal assignment of speech data rates in 3rd generation cellular systems. Preliminary results, obtained with a simple model, indicate that a substantial capacity increase can be achieved in comparison to non-optimal cases. Moreover, the simplicity of the approach allows a straightforward application in real-time assignment strategies.
Published in:
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
(Volume:7
)
Date of Conference: 26-29 Sept. 2004
- Page(s):
- 4991 - 4995 Vol. 7
- ISSN :
- 1090-3038
- Print ISBN:
- 0-7803-8521-7
- INSPEC Accession Number:
- 8462931
- Digital Object Identifier :
- 10.1109/VETECF.2004.1405048
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