Embedded system architecture for an WLAN-based dual mode mobile phone

Sung Bong Jang; Young Gab Kim; Hong Seok Na; Doo Kwon Baik

doi:10.1109/TCE.2009.5278035

Embedded system architecture for an WLAN-based dual mode mobile phone

Sung Bong Jang, Young Gab Kim, Hong Seok Na, Doo Kwon Baik

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

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	https://doi.org/10.1109/TCE.2009.5278035
Publication status	Published - 2009

Keywords

Dual-mode mobile phone
FMC
VoIP

ASJC Scopus subject areas

Media Technology
Electrical and Electronic Engineering

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10.1109/TCE.2009.5278035

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title = "Embedded system architecture for an WLAN-based dual mode mobile phone",

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AB - 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.

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Embedded system architecture for an WLAN-based dual mode mobile phone

Abstract

Keywords

ASJC Scopus subject areas

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