期刊名称：IAENG International Journal of Computer Science
印刷版ISSN：1819-656X
电子版ISSN：1819-9224
出版年度：2019
卷号：46
期号：2
页码：163-169
出版社：IAENG - International Association of Engineers
摘要：This paper considers reasonable bandwidth allocationfor both elastic and inelastic services in peer-to-peer (P2P)networks. We measure the satisfaction of each peer as customerwhen acquiring one service by a utility function, and developa bandwidth allocation model with the objective of utilitymaximization, which is an intractable and difficult non-convexoptimization problem. In order to overcome it, we approximatethe non-convex problem to a serial of equivalent convex optimizationproblems by applying the successive approximationmethod. We then present a gradient-based bandwidth allocationscheme to achieve the optimum of each approximation problem.After a serial of approximations, the bandwidth allocationscheme finally converges to an optimum of the bandwidthallocation problem. Some numerical examples are finally givento illustrate that the scheme can efficiently converge to theoptimal bandwidth allocation.
关键词：P2P networks; bandwidth allocation; elastic;and inelastic services; utility function
