摘要：
An adaptive admission control scheme for network, which is capable of operating efficiently under traffic bursting conditions, is introduced. According to the proposed scheme, the oscillation and delay induced by highly stochastic behavior of computing systems may be bated, which may create great degradation in service level management (e.g., an email server). We analyze the controller in detail and prove the error can be reduced to zero in steady state. The effectiveness of the proposed methods is demonstrated by the simulation results.
摘要：
This paper provides a new approach to solve the motion planning problems of aerocraft in uncertain 3D dynamic environments. The aerocrafts controlled by this method can adaptively choose die fast way to avoid collision without information about the shapes and trajectories of obstacles. Based on sphere coordinates the new path-planning method accomplishes collision avoidance of aerocraft without any other auxiliary positioning systems. The Self-adaptive system gives aerocrafts self-protection abilities to work in uncertain 3D dynamic environments. Simulations illustrate the validity of the proposed method.
期刊：
Proceedings of the 26th Chinese Control Conference, CCC 2007,2007年:612-614
通讯作者：
Yi, Chen
作者机构：
[Ge, Gao; Yi, Chen] Wuhan Univ, Natl Engn Res Ctr Multimedia Software, Wuhan 430072, Hubei, Peoples R China.;[Yi, Chen] Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Hubei, Peoples R China.;[Hao, Liu] Southwest Jiaotong Univ, Sch Info Sci & Tech, Chengdu 610031, Sichuan, Peoples R China.
通讯机构：
[Yi, Chen] W;Wuhan Univ, Natl Engn Res Ctr Multimedia Software, Wuhan 430072, Hubei, Peoples R China.
会议名称：
26th Chinese Control Conference, CCC 2007
会议时间：
July 26, 2007 - July 31, 2007
会议地点：
Zhangjiajie, China
关键词：
admission control;adaptive control;computing systems
摘要：
There may be great degradation in service level management (e.g., an email server) due to dynamical variants of real systems and measured disturbance in the network. An adaptive predictive congestion control is presented for service systems to prevent oscillation and delay induced by highly stochastic behaviors of computing system which can not be got rid of by conventional control. We analyze the controller in detail and prove the error can be reduced to zero in steady state. The effectiveness of the proposed methods is demonstrated bv the simulation results.
摘要：
A novel control-theoretic scheme is presented for resource allocation in wireless Ad Hoc networks based on virtual price. The degree of congestion on a wireless link can be symbolized an aggregate virtual price along a route, which depends mostly on the wireless node's queue occupancy. This approach adopts an adaptive approach to control the transmission rate at the source, named ASR controller. The object is to optimize the resource allocation dynamically through the transmission rate adjustment and stabilized the queue size of wireless links. The basic control theory approach for the algorithm is been presented, specifically z-transmission and Jury stability are used to achieve the stability. The performance of simulation indicates that the proposed scheme can achieve the goal of optimal channel capacity sharing among multi-hop flows and sharing bandwidth fairly.
作者机构：
School of Info Science.& Tech.,Southwest Jiaotong University,Chengdu,610031 China;Department of Computer Science,Huazhong Normal University,Wuhan,430079 China
会议名称：
第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)
摘要：
This paper provides a new approach to solve the motion planning problems of aerocraft in uncertain 3D dynamic environments. The aerocrafts controlled by this method can adaptively choose the fast way to avoid collision without information about the shapes and trajectories of obstacles. Based on sphere coordinates the new path-planning method accomplishes collision avoidance of aerocraft without any other auxiliary positioning systems. The Self-adaptive system gives aerocrafts self-protection abilities to work in uncertain 3D dynamic environments. Simulations illustrate the validity of the proposed method.
