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- W4323519693 abstract "We study Bandwidth Reservation (BR) policies for the Bandwidth on Demand (BoD) problem in a class of multihop networks. We motivate an Erlang fixed-point BR heuristic for the general BoD problem by first establishing the optimality of BR on a class of multihop networks. The motivating problem is a wireline network comprising <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$k$</tex-math> </inline-formula> links in tandem, each link of which is shared by two types of bandwidth demands, one type requiring one unit of bandwidth from every link, and the other type (being dedicated to the link) requiring one unit of bandwidth as well. First, for this <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$k$</tex-math> </inline-formula> -hop tandem network, when each link has unit bandwidth, we demonstrate that a policy of BR form is optimal. We then study the BoD problem for a more general <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$k$</tex-math> </inline-formula> -hop tandem network, in the “Kelly” limiting regime, where the arrival rates as well as the link bandwidths become large. For certain parameter regimes of the <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$k$</tex-math> </inline-formula> -hop tandem network, we show that an admission control policy of BR form is asymptotically optimal. Motivated by these results, we propose an Erlang fixed-point based, link-by-link, heuristic algorithm for computing a BR policy for the BoD problem in a general network. We, finally, evaluate this proposal numerically." @default.
- W4323519693 created "2023-03-09" @default.
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- W4323519693 date "2023-10-01" @default.
- W4323519693 modified "2023-10-18" @default.
- W4323519693 title "Revenue Optimal Bandwidth Allocation in a Class of Multihop Networks: Algorithms and Asymptotic Optimality" @default.
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- W4323519693 doi "https://doi.org/10.1109/tnet.2023.3249480" @default.
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