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Distributed Transmission Control in Multichannel S-ALOHA for Ad-Hoc Networks

Wireless ad-hoc networks are marked without a basic infrastructure and global information for the current status of the network. For multichannel slotted ALOHA systems of wireless ad-hoc networks, this letter proposes a (re)transmission control algorithm for the transmitters to employ. The algorithm...

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Bibliographic Details
Published in:IEEE communications letters 2017-09, Vol.21 (9), p.2093-2096
Main Authors: Toor, Waqas Tariq, Jun-Bae Seo, Hu Jin
Format: Article
Language:English
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Summary:Wireless ad-hoc networks are marked without a basic infrastructure and global information for the current status of the network. For multichannel slotted ALOHA systems of wireless ad-hoc networks, this letter proposes a (re)transmission control algorithm for the transmitters to employ. The algorithm aims at minimizing Lyapunov (negative) drift on the sum of all transmitters' queue, while it is implemented in a distributed way such that each transmitter only needs local information, such as the number of idle channels. To control (re)transmission probability optimally, with the local information, each transmitter solves a subproblem of estimating the number of backlogged nodes in each time slot. Simulation results show that our proposed algorithm yields near-optimal queuing performance.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2017.2711493