A Novel Dual Busy Tone Aided MAC Protocol for Multi-hop Wireless Networks

Author

Liu, Ke ; Leng, Supeng ; Fu, Huirong ; Li, Longjiang

Author_Institution

Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2009

fDate

12-14 Dec. 2009

Firstpage

373

Lastpage

378

Abstract

In order to combat the exposed terminal problem and the interference accumulation phenomenon in wireless channels, this paper proposed a new Asymmetrical Dual Busy Tones (ADBT) MAC protocol. By introducing BT-CTS/BTACK mechanism and the approximate algorithm of interfering nodes, ADBT MAC can solve the exposed terminal problem and the hidden terminal problem in the environment with large interference range. Moreover, the effect of the interference accumulation phenomenon can be alleviated by the power adjustment approach for the busy tones. The network performances of DCF, DBTMA, VPDBT and ADBT MAC protocols are compared via OPNET-based simulation experiments, which verify that ADBT is able to prevent packet collisions effectively and improve the channel utilization significantly.

Keywords

access protocols; interference suppression; packet radio networks; wireless channels; ADBT MAC protocol; BT-ACK mechanism; BT-CTS mechanism; DBTMA; DCF; VPDBT; asymmetrical dual busy tone aided MAC protocol; hidden terminal problem; interference accumulation phenomenon; multihop wireless networks; packet collision prevention; Computational modeling; Computer networks; Computer science; Interference; Media Access Protocol; Power engineering computing; Radio transmitters; Spread spectrum communication; Wireless application protocol; Wireless networks; IEEE 802.11; MAC; dual busy tones; large interference range; multi-hop wireless network;

fLanguage

English

Publisher

ieee

Conference_Titel

Dependable, Autonomic and Secure Computing, 2009. DASC '09. Eighth IEEE International Conference on

Conference_Location

Chengdu

Print_ISBN

978-0-7695-3929-4

Electronic_ISBN

978-1-4244-5421-1

Type

conf

DOI

10.1109/DASC.2009.20

Filename

5380392