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

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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)1623-1630
Number of pages8
JournalIEEE Transactions on Consumer Electronics
Volume55
Issue number3
DOIs
Publication statusPublished - 2009 Oct 29

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Wireless local area networks (WLAN)
Mobile phones
Embedded systems
Servers

Keywords

  • Dual-mode mobile phone
  • FMC
  • VoIP

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Media Technology

Cite this

Embedded system architecture for an WLAN-based dual mode mobile phone. / Jang, Sung Bong; Kim, Young G.; Na, Hong Seok; Baik, Doo Kwon.

In: IEEE Transactions on Consumer Electronics, Vol. 55, No. 3, 29.10.2009, p. 1623-1630.

Research output: Contribution to journalArticle

Jang, Sung Bong ; Kim, Young G. ; Na, Hong Seok ; Baik, Doo Kwon. / Embedded system architecture for an WLAN-based dual mode mobile phone. In: IEEE Transactions on Consumer Electronics. 2009 ; Vol. 55, No. 3. pp. 1623-1630.
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