Back-off and retransmission strategies for throughput enhancement of broadcast transmissions in 802.11p

Author

Alapati, Jayakrishna ; Pandya, Bhoomek ; Merchant, S.N. ; Desai, U.B.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Mumbai, India

fYear

2010

fDate

21-24 June 2010

Firstpage

700

Lastpage

705

Abstract

This paper proposes new MAC layer based back-off and retransmission strategies for throughput enhancement, in broadcast transmissions of inter vehicular communication. We present adaptive back off strategy which is based on the concept that there exists an optimum contention window (CW) period in a broadcast CSMA/CA system, given the fixed number of users. We also propose a simple probabilistic approach for retransmission which is based on analyzing the local information. Simulation results shows the improvement in the throughput using adaptive back-off and probabilistic retransmission strategies compared to fixed back-off strategy.

Keywords

IEEE standards; carrier sense multiple access; mobile communication; probability; wireless LAN; IEEE 802.11p; MAC layer-based back off strategies; broadcast CSMA-CA system; broadcast transmissions; contention window; inter vehicular communication; retransmission strategies; Broadcast technology; Broadcasting; Information analysis; Multiaccess communication; Road accidents; Telecommunication traffic; Throughput; Traffic control; Transmitters; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Vehicles Symposium (IV), 2010 IEEE

Conference_Location

San Diego, CA

ISSN

1931-0587

Print_ISBN

978-1-4244-7866-8

Type

conf

DOI

10.1109/IVS.2010.5547983

Filename

5547983