Abstract
This paper presents new embedded system architecture (ESA) for improving the voice quality in a WLAN/Cellular dual-mode mobile phone. The proposed architecture is based on a dual-core scheme and its main functional blocks are composed of VoIP Remote Procedure Call (VRPC), an audio bridging scheme, and a Server- Assisted Call Management (SACM) algorithm. In order to illustrate the aims of the proposed approach, prototype systems are implemented, and evaluated by measuring average Mean Opinion Score (MOS), and Mouth-To-Ear (M2E) delay. The experimental results show that the proposed approach results in greatly improved voice quality.
| Original language | English |
|---|---|
| Pages (from-to) | 1623-1630 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Consumer Electronics |
| Volume | 55 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2009 |
Keywords
- Dual-mode mobile phone
- FMC
- VoIP
ASJC Scopus subject areas
- Media Technology
- Electrical and Electronic Engineering