针对一些实时性要求比较高的应用场景,如地震监测、火警探测等,提出一种限定延迟的最大化网络生命周期算法DCLB(Delay-Constrained and Load-Balance data aggregation algorithm)。DCLB以一棵具有最小跳生成树为基础,在满足限制树高的...针对一些实时性要求比较高的应用场景,如地震监测、火警探测等,提出一种限定延迟的最大化网络生命周期算法DCLB(Delay-Constrained and Load-Balance data aggregation algorithm)。DCLB以一棵具有最小跳生成树为基础,在满足限制树高的前提下,迭代的转移树上负载最大节点的子孙到负载小的节点上去。实验表明,与目前已有算法相比,DCLB算法具有更低的时间复杂度,能有效地减少延迟并延长树的生命周期。展开更多
This paper obtained some theorems that can ascertain the zero solution of functional differential equations are extremely uniformly stable, extremely asymptotically stable or extremely uniformly asymptotically stable....This paper obtained some theorems that can ascertain the zero solution of functional differential equations are extremely uniformly stable, extremely asymptotically stable or extremely uniformly asymptotically stable. In the obtained theorems, the derivative of Liapunov function on t along the solutions of functional differential equations is not required to be always negative, especially, it may be even positive.展开更多
The finite-time stability to linear discontinuous time-varying delayed system was investigated. By applying the method of upper and lower solutions, some sufficient conditions of this kind of stability were obtained. ...The finite-time stability to linear discontinuous time-varying delayed system was investigated. By applying the method of upper and lower solutions, some sufficient conditions of this kind of stability were obtained. Furthermore, it also developed a monotone iterative technique for obtaining solutions which are obtained as limits of monotone sequences展开更多
Delay differential systems are widely used in many different fields, It is important to determine the local stability of their equilibria, For systems with＇ delay dependent parameters, the stability analysis of equil...Delay differential systems are widely used in many different fields, It is important to determine the local stability of their equilibria, For systems with＇ delay dependent parameters, the stability analysis of equilibria is complicated and difficult In this paper, we shall investigate the ultimate stability of a type of characteristic equation with delay dependent parameters. Our results show that the characteristic equation with delay dependent parameters may be one of ultimately stable, ultimately unstable, and alternate between stable and unstable. Applying our results, the ultimate stability can be often decided directly and need not appeal to mathematic software. Two examples are given in this paper,展开更多
文摘针对一些实时性要求比较高的应用场景,如地震监测、火警探测等,提出一种限定延迟的最大化网络生命周期算法DCLB(Delay-Constrained and Load-Balance data aggregation algorithm)。DCLB以一棵具有最小跳生成树为基础,在满足限制树高的前提下,迭代的转移树上负载最大节点的子孙到负载小的节点上去。实验表明,与目前已有算法相比,DCLB算法具有更低的时间复杂度,能有效地减少延迟并延长树的生命周期。
基金National Natural Science Foundation ofChina( No.1983 10 3 0 )
文摘This paper obtained some theorems that can ascertain the zero solution of functional differential equations are extremely uniformly stable, extremely asymptotically stable or extremely uniformly asymptotically stable. In the obtained theorems, the derivative of Liapunov function on t along the solutions of functional differential equations is not required to be always negative, especially, it may be even positive.
基金National Natural Science Foundation ofChina( No.1983 10 3 0 and No.10 0 0 10 2 4
文摘The finite-time stability to linear discontinuous time-varying delayed system was investigated. By applying the method of upper and lower solutions, some sufficient conditions of this kind of stability were obtained. Furthermore, it also developed a monotone iterative technique for obtaining solutions which are obtained as limits of monotone sequences
基金This work was supported by China Ministry of Science and Technology(2004BA719A01)Postdoctoral Function of China(2005037785).
文摘Delay differential systems are widely used in many different fields, It is important to determine the local stability of their equilibria, For systems with＇ delay dependent parameters, the stability analysis of equilibria is complicated and difficult In this paper, we shall investigate the ultimate stability of a type of characteristic equation with delay dependent parameters. Our results show that the characteristic equation with delay dependent parameters may be one of ultimately stable, ultimately unstable, and alternate between stable and unstable. Applying our results, the ultimate stability can be often decided directly and need not appeal to mathematic software. Two examples are given in this paper,
