TY - JOUR
T1 - Realizing airtime allocations in multi-hop Wi-Fi networks
T2 - A stability and convergence study with testbed evaluation
AU - Mellott, Matthew J.
AU - Garlisi, Domenico
AU - Colbourn, Charles J.
AU - Syrotiuk, Violet R.
AU - Tinnirello, Ilenia
N1 - Funding Information:
This work is supported in part by the U.S. National Science Foundation under Grant No. 1421058 . We thank the reviewers for their thoughtful comments, which have improved the quality of our presentation and of our work.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/9
Y1 - 2019/9
N2 - REACT is a distributed resource allocation protocol used to negotiate a max–min allocation of airtime for multi-hop ad hoc wireless networks. Two approaches are proposed for a node to realize its REACT allocation in a contention-based MAC protocol. This is achieved by tuning its contention window to a value that corresponds to its allocation. Only a change in the allocation, due to a change in local traffic requirements or local network views, results in re-tuning. The approaches for tuning are implemented in commercial Wi-Fi devices and their stability and convergence are studied experimentally in the w-iLab.t wireless network testbed. These properties are also studied analytically to support the experimental results. In addition, REACT is extended to support airtime reservations for multi-hop flows. With a reservation in place, multi-hop TCP flows exhibit improved performance metrics when running over REACT than when running over 802.11 DCF in the w-iLab.t testbed.
AB - REACT is a distributed resource allocation protocol used to negotiate a max–min allocation of airtime for multi-hop ad hoc wireless networks. Two approaches are proposed for a node to realize its REACT allocation in a contention-based MAC protocol. This is achieved by tuning its contention window to a value that corresponds to its allocation. Only a change in the allocation, due to a change in local traffic requirements or local network views, results in re-tuning. The approaches for tuning are implemented in commercial Wi-Fi devices and their stability and convergence are studied experimentally in the w-iLab.t wireless network testbed. These properties are also studied analytically to support the experimental results. In addition, REACT is extended to support airtime reservations for multi-hop flows. With a reservation in place, multi-hop TCP flows exhibit improved performance metrics when running over REACT than when running over 802.11 DCF in the w-iLab.t testbed.
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U2 - 10.1016/j.comcom.2019.07.006
DO - 10.1016/j.comcom.2019.07.006
M3 - Article
AN - SCOPUS:85069719307
SN - 0140-3664
VL - 145
SP - 273
EP - 283
JO - Computer Communications
JF - Computer Communications
ER -