Energy implication of various VoIP codecs in portable devices

Author

Naeem, Muhammad ; Namboodiri, Vinod ; Pendse, Ravi

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Wichita State Univ., Wichita, KS, USA

fYear

2010

fDate

10-14 Oct. 2010

Firstpage

196

Lastpage

199

Abstract

Current portable devices e.g. cell phones, PDA´s and laptops are mainly Wi-Fi capable. Users can make efficient use of these devices by running various applications. Among these, the Voice over Internet Protocol (VoIP) application is very popular. As new models of these devices emerge, they are increasingly power hungry in terms of processing and communication. As a result, battery lifetime is one of the most critical performance parameters. This paper presents experimental studies on the energy depletion characteristics of VoIP applications when using various codecs in an IEEE 802.11 Wireless LAN setting. The effect of high, medium and low bandwidth codecs on battery life is studied and an adaptive algorithm is proposed that switches codecs in the middle of an active call based on remaining battery life.

Keywords

Internet telephony; bandwidth allocation; codecs; transport protocols; wireless LAN; IEEE 802.11 wireless LAN; PDA; VoIP application; VoIP codec; Wi-Fi capable; bandwidth codec; battery lifetime; cell phone; energy depletion; energy implication; laptop; portable device; voice over Internet protocol; Batteries; Codecs; Energy consumption; IEEE 802.11 Standards; Payloads; Portable computers; Servers; Codecs; Energy; SIP; VoIP;

fLanguage

English

Publisher

ieee

Conference_Titel

Local Computer Networks (LCN), 2010 IEEE 35th Conference on

Conference_Location

Denver, CO

ISSN

0742-1303

Print_ISBN

978-1-4244-8387-7

Type

conf

DOI

10.1109/LCN.2010.5735699

Filename

5735699