A New MAC Protocol for Avoiding Needless Transmission Deferment Induced by Missed RTS/CTS Handshake

Author

Inoue, Daishi ; Shigeyasu, Tetsuya ; Matsuno, Hiroshi ; Morinaga, Norihiko

Author_Institution

Hiroshima Int. Univ., Hiroshima

fYear

2008

fDate

25-28 March 2008

Firstpage

977

Lastpage

982

Abstract

IEEE802.11DCF employs RTS/CTS (request to send/clear to send) mechanism for mitigating effect of hidden terminals. The RTS/CTS mechanism sets transmission deferral timer to neighbor terminals by exchanging RTS and CTS between transmitter and receiver. Then, in the case that RTS/CTS exchange succeeds, effect of hidden terminals could be suppressed, otherwise, any neighbor which received RTS and/or CTS defers its new transmission needlessly although DATA packet corresponding to the previous RTS/CTS exchange will not be transmitted. In this paper, we propose Cancel CTS procedure in order to cope with the unnecessarily transmission deferment. Results of computer simulation confirms that our method well improves the throughput performance of IEEE802.11DCF.

Keywords

access protocols; wireless LAN; IEEE802.11DCF; MAC protocol; cancel CTS procedure; distribution coordination function; missed RTS/CTS handshake mechanism; needless transmission deferment avoidance; request to send/clear to send; Cathode ray tubes; Collision avoidance; Computer simulation; Data communication; Data engineering; Media Access Protocol; Multiaccess communication; Throughput; Transmitters; Wireless LAN; Hidden Terminal Problem; IEEE802.11; RTS/CTS;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Information Networking and Applications - Workshops, 2008. AINAW 2008. 22nd International Conference on

Conference_Location

Okinawa

Print_ISBN

978-0-7695-3096-3

Type

conf

DOI

10.1109/WAINA.2008.21

Filename

4483043