An energy-efficient delay reduction technique for supporting WLAN-based VoIP in SmartPhone
- Authors
- Jang, Sung-Bong; Kim, Young-Gab
- Issue Date
- 11월-2011
- Publisher
- ELSEVIER
- Keywords
- Power Save Mode (PSM); VoIP; Energy saving; SmartPhone; Delay reduction; WLAN
- Citation
- JOURNAL OF SYSTEMS ARCHITECTURE, v.57, no.10, pp.934 - 944
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF SYSTEMS ARCHITECTURE
- Volume
- 57
- Number
- 10
- Start Page
- 934
- End Page
- 944
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/111304
- DOI
- 10.1016/j.sysarc.2011.04.002
- ISSN
- 1383-7621
- Abstract
- For non-real time data such as Web or e-mail, the 802.11 PSM scheme can be a useful mechanism for reducing power consumption effectively. However, there are some limitations when these are used for voice communication in which the main traffic is composed of delay-sensitive data like voice or call signaling. In this paper, in order to overcome the limitations, we present an efficient power saving scheme which can minimize power consumption while guaranteeing the delay constraint during call signaling and talk time. Furthermore, in order to illustrate the aims of the proposed approach, the terminal systems are implemented and evaluated by measuring average call connection delay and power consumption. The experimental results show that our approach can minimize traffic delay and power consumption, and find an optimal sleep threshold value according to network condition changes. (C) 2011 Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.