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Embedded System Architecture for an WLAN-based Dual Mode Mobile Phone
- Issue Date
- 8월-2009
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Dual-Mode Mobile Phone; FMC; VoIP
- Citation
- IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, v.55, no.3, pp.1623 - 1630
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
- Volume
- 55
- Number
- 3
- Start Page
- 1623
- End Page
- 1630
- ISSN
- 0098-3063
- 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(1).
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