Effect of retransmissions on the performance of the IEEE 802.11 MAC protocol for DSRC

Author

Hassan, Md Imrul ; Vu, Hai L. ; Sakurai, Taka ; Andrew, Lachlan L H ; Zukerman, Moshe

Author_Institution

Centre for Adv. Internet Archit., Swinburne Univ. of Technol., Melbourne, VIC, Australia

fYear

2010

fDate

13-15 Dec. 2010

Firstpage

354

Lastpage

360

Abstract

We propose and evaluate two retransmission-based schemes to improve the reliability of broadcasts in a contention-based MAC, with application to safety messages in dedicated short range communication (DSRC). These improve the reliability of event driven emergency messages without requiring feedback or additional protocol overhead. We also extend the Piggybacked ACK protocol into a feedback-based retransmission scheme. These three schemes can be implemented on top of the 802.11p MAC. We demonstrate by simulation that the packet delivery ratio of event messages is improved in diverse traffic conditions, with a small drop in performance for routine messages. We do not observe a significant improvement from using feedback, compared with the blind retransmission schemes.

Keywords

access protocols; feedback; telecommunication network reliability; vehicular ad hoc networks; wireless LAN; ACK protocol; DSRC; IEEE 802.11; MAC protocol; broadcasts; dedicated short range communication; emergency messages; feedback; reliability; retransmissions effect; Delay; IEEE 802.11 Standards; Media Access Protocol; Reliability; Safety; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Networking Conference (VNC), 2010 IEEE

Conference_Location

Jersey City, NJ

ISSN

2157-9857

Print_ISBN

978-1-4244-9526-9

Type

conf

DOI

10.1109/VNC.2010.5698236

Filename

5698236