Title :
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
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;
Conference_Titel :
Intelligent Vehicles Symposium (IV), 2010 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-7866-8
DOI :
10.1109/IVS.2010.5547983
