Tone Dual-Channel Directional MAC Protocol for Mobile Ad-Hoc Networks Jwa, Jeong-Woo;
The directional MAC (DMAC) protocol improves the spatial reuse, but directional packets on the control channel cause the deafness problem. In this paper, we propose a tone dual-channel DMAC protocol for mobile ad-hoc networks. In the proposed MAC protocol, the use of omnidirectional transmissions using an omnidirectional out-of-band tone solves the deafness problem and decrease packet collisions on the control channel. The use of an omnidirectional out-of-band tone also mitigates the hidden terminal problem. We use the negative CTS (NCTS) mechanism to solve the exposed terminal problem. The throughput performance of the proposed MAC protocol is confirmed by simulations using the Qualnet simulator.
Ad-hoc MAC Protocol;Directional Antenna;Dual-channel MAC;Out-of-band Tone;
C.S.R. Murthy and B.S. Manoj, Ad Hoc Wireless Networks - Architectures and Protocols, Prentice Hall, 2004.
Y.B. Ko, V. Shankarkumar, and N.H. Vaidya, "Medium Access Control Protocols Using Directional Antennas in Ad Hoc Networks", IEEE INFOCOM 2000, March 2000, pp.13-21.
R.R. Choudhury, X. Yang, N.H. Vaidya and R. Ramanathan, "Using directional antennas for medium access control in ad hoc networks", MOBICOM, 2002, pp.57-90.
P. Li, H. Zhai, and Y. Fang, "SDMAC: Selectively Directional MAC protocol for wireless mobile ad hoc networks", Wireless Networks, 2009, vol. 15, no. 6, pp.805-820.
R.R. Choudhury and N.H. Vaidya, "Deafness : A MAC problem in Ad hoc networks when using Directional Antennas", ICNP, 2004, pp.283-292.
H. Zhai, J. Wang, and Y. Fang, "A Dual-Channel MAC Protocol for Mobile Ad Hoc Networks", IEEE Globecom, 2004, pp.27-32.
H. Zhai, J. Wang, and Y. Fang, "DUCHA: A New Dual-Channel MAC Protocol for Multihop Ad Hoc Networks," IEEE Trans. Wireless Commun., Nov. 2006, pp.3224-3233.
D.H. Han, J.W. Jwa, H.I. Kim, "A Dual-Channel MAC Protocol using Directional Antennas in Location Aware Ad Hoc Networks," ICCSA 2006, LNCS3983, May 2006, pp.594-602.
BonnMotion A mobility scenario generation and analysis tool,http://web.informatik.unibonn.de/IV/Mitarbeiter/dewaal/ BonnMotion/.