Improving the channel utilization of IEEE 802.11p/1609 networks

S. Y. Wang, Shie-Yuan Wang, K. C. Liu, T. W. Ho, W. J. Hung, C. F. Huang, M. S. Hsu, H. Y. Chen, C. C. Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

42 Scopus citations

Abstract

The IEEE 802.11p/1609 standards specify a suite of communication protocols for vehicular communication networks. A new operational mode, called theWAVE (Wireless Access in Vehicular Environments) mode, is defined to enable communication among high-speed vehicles or between a vehicle and a roadside infrastructure network. In the WAVE mode, a mobile/stationary station uses a combined FDMA/TDMA channel access scheme to switch its channel between the control channel and a service channel every 50 ms. The primary purpose of this design is to detect new services announced by other stations. However, if a station would like to use all of its service channel bandwidth to transmit a large volume of data to another station, switching back to the control channel every 50 ms without doing anything useful only unnecessarily reduces the maximum possible transmission throughput by a half. To overcome this problem, in this paper we propose an improved channel access scheme to allow a station to stay on a service channel as long as it requires before returning to the control channel. Our simulation results show that the proposed scheme significantly improves the service channel utilization under various network conditions.

Original languageEnglish
Title of host publication2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings
DOIs
StatePublished - 22 Sep 2009
Event2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Budapest, Hungary
Duration: 5 Apr 20098 Apr 2009

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511

Conference

Conference2009 IEEE Wireless Communications and Networking Conference, WCNC 2009
CountryHungary
CityBudapest
Period5/04/098/04/09

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  • Cite this

    Wang, S. Y., Wang, S-Y., Liu, K. C., Ho, T. W., Hung, W. J., Huang, C. F., Hsu, M. S., Chen, H. Y., & Lin, C. C. (2009). Improving the channel utilization of IEEE 802.11p/1609 networks. In 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings [4917753] (IEEE Wireless Communications and Networking Conference, WCNC). https://doi.org/10.1109/WCNC.2009.4917753