UTILITY OPTIMIZATION-BASED BANDWIDTH ALLOCATION FOR ELASTIC AND INELASTIC SERVICES IN PEER-TO-PEER NETWORKS

被引：5
|
作者：
Li, Shiyong [1 ]
Zhang, Yue [1 ]
Wang, Yan [1 ]
Sun, Wei [1 ]
机构：
[1] Yanshan Univ, Sch Econ & Management, 138 Hebei Ave, Qinhuangdao 066004, Hebei, Peoples R China
来源：
INTERNATIONAL JOURNAL OF APPLIED MATHEMATICS AND COMPUTER SCIENCE | 2019年 / 29卷 / 01期
基金：
中国国家自然科学基金;
关键词：
P2P networks; bandwidth allocation; elastic and inelastic services; utility function; RESOURCE-ALLOCATION; MECHANISM; SYSTEMS;
D O I：
10.2478/amcs-2019-0009
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper considers reasonable bandwidth allocation for multiclass services in peer-to-peer (P2P) networks, measures the satisfaction of each peer as a customer by a utility function when acquiring one service, and develops an optimization model for bandwidth allocation with the objective of utility maximization. Elastic services with concave utilities are first considered and the exact expression of optimal bandwidth allocation for each peer is deduced. In order to obtain an optimum in distributed P2P networks, we develop a gradient-based bandwidth allocation scheme and illustrate the performance with numerical examples. Then we investigate bandwidth allocation for inelastic services with sigmoidal utilities, which is a nonconvex optimization problem. In order to solve it, we analyze provider capacity provisioning for bandwidth allocation of inelastic services and modify the update rule for prices that service customers should pay. Numerical examples are finally given to illustrate that the improved scheme can also efficiently converge to the global optimum.
引用
收藏
页码：111 / 123
页数：13
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