Evaluating the energy efficiency of TCP transmission over a WiMAX network

Shiao-Li Tsao*, Shih Yung Lee

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

To minimize the power consumption of a mobile device, mobile WiMAX based on IEEE 802.16/802.16e defines three power saving classes for transmitting different types of data traffic. However, the standard specification does not suggest a power saving class for transmitting background TCP traffic, such as a long FTP session. This paper investigates the energy efficiency of TCP transmission over a WiMAX network under different MAC configurations, wireless and wired traffic conditions. We conduct a number of experiments in a real WiMAX test-bed and obtain power consumption parameters of a WiMAX network interface card (NIC). These parameters are further fed into the network simulator 2 (NS-2) to evaluate the energy consumption of TCP transmission in a large-scale WiMAX network. Experimental and simulation results demonstrate that the IEEE 802.16 bandwidth request mechanism introduces considerable power consumption overhead in TCP transmission. Moreover, the energy consumption of a long TCP transmission session in a WiMAX network can be significantly reduced by applying the power saving class type II and base station-proxy mechanism.

Original languageEnglish
Title of host publication2010 Proceedings of 19th International Conference on Computer Communications and Networks, ICCCN 2010
DOIs
StatePublished - 29 Oct 2010
Event2010 19th International Conference on Computer Communications and Networks, ICCCN 2010 - Zurich, Switzerland
Duration: 2 Aug 20105 Aug 2010

Publication series

NameProceedings - International Conference on Computer Communications and Networks, ICCCN
ISSN (Print)1095-2055

Conference

Conference2010 19th International Conference on Computer Communications and Networks, ICCCN 2010
CountrySwitzerland
CityZurich
Period2/08/105/08/10

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