Title :
FFT-DMAC: A Tone Based MAC Protocol with Directional Antennas
Author :
Li, Ying ; Li, Minglu ; Shu, Wei ; Wu, Min-You
Author_Institution :
Shanghai Jiao Tong Univ., Shanghai
Abstract :
This paper presents the FFT (flip-flop tone) DMAC protocol, a tone based MAC protocol using directional antennas to solve the deafness problem, hidden terminal and exposed terminal problems simultaneously. It uses two pairs of flip-flop tones. The first pair of tone is sent omni-directionally to reach every neighboring node to announce the start and the end of communication, and therefore to avoid the deafness problem. The second pair of tone is sent directionally towards the sender. It is used to solve the hidden terminal problem as well as the exposed terminal problem. Evaluation shows that FFT-DMAC can achieve better performance compared to the 802.11 and ToneDMAC protocol.
Keywords :
access protocols; directive antennas; flip-flops; DMAC protocol; deafness problem; directional antenna; exposed terminal problem; flip-flop tone; hidden terminal problem; tone based MAC protocol; Access protocols; Array signal processing; Computer science; Deafness; Directional antennas; Flip-flops; Media Access Protocol; Mobile ad hoc networks; Multiaccess communication; Wireless application protocol;
Conference_Titel :
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-1042-2
Electronic_ISBN :
978-1-4244-1043-9
DOI :
10.1109/GLOCOM.2007.695
