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A Dual-Tone DMAC Protocol for Mobile Ad Hoc Networks
Sang-Bo KO Jeong-Woo JWA
Publication
IEICE TRANSACTIONS on Communications
Vol.E90-B
No.2
pp.354-357 Publication Date: 2007/02/01 Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.2.354 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Network Keyword: ad hoc network, medium access control (MAC), dual-tone, directional antennas,
Full Text: PDF(411.3KB)>>
Summary:
Ad hoc DMAC protocols have been proposed to improve spatial reuse, but directional transmissions have the problem of deafness. In the ToneDMAC protocol [9], an omnidirectional out-of-band tone after transmitting DATA or ACK mitigates deafness, but cannot prevent the interference packets caused by retransmissions to node in deafness. In this paper, we propose a dual-tone DMAC protocol with the out-of-band start-tone and stop-tone. In the proposed MAC protocol, a start-tone prevents retransmissions to node in deafness and decreases the packet collision probability. Throughput performance of the proposed MAC protocol is confirmed by simulations using Qualnet ver. 3.8 simulator.
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