A Flow-Based Media Access Control (F-MAC) for Wireless Ad-Hoc Networks

Tran Minh TRUNG
Jeonghoon MO
Seong-Lyun KIM

IEICE TRANSACTIONS on Communications   Vol.E89-B    No.3    pp.756-763
Publication Date: 2006/03/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.3.756
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Network
802.11 MAC,  fairness,  efficiency,  compatibility,  wireless,  ad-hoc,  

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In this paper, we propose simple but effective modifications of 802.11 MAC (media access control) to resolve efficiency and fairness issues, in wireless ad-hoc networks [2]. Our proposal, based on the flow concept, incorporated faster end-to-end forwarding by assigning higher priority to a node that has packets to relay than others. After completion of end-to-end transmission, the node will be assigned a lower priority level to yield to other nodes. Simulation results show that the proposed scheme (F-MAC) significantly enhances the throughput of ad-hoc networks, while keeping fair sharing of bandwidth among mobile nodes.