Title :
Optimal Semistable Control in Ad Hoc Network Systems: A Sequential Two-Stage Approach
Author_Institution :
Dept. of Mech. Eng., Texas Tech Univ., Lubbock, TX, USA
Abstract :
Motivated by various problems such as distributed computation, multiagent coordination, wireless communication, and online search algorithms, a time-varying optimal coordinated information load balancing problem has been solved by means of a sequential, two-stage, optimal semistable control approach. Technically we formulate this information load balancing problem into a linear, time-varying quadratic semistabilization problem with time-dependent iterative algorithms for information load balancing in peer-to-peer networks. To solve this problem, we propose a novel, sequential two-stage design. The first stage is to guarantee the convergence of the optimal policy while the second stage is to derive the explicit recursive formulas for optimal strategies under a finite set of convergence-guaranteed candidate policies.
Keywords :
ad hoc networks; iterative methods; network theory (graphs); optimal control; peer-to-peer computing; resource allocation; stability; time-varying systems; ad hoc network systems; convergence-guaranteed candidate policy; explicit recursive formulas; linear problem; optimal policy convergence; optimal semistable control; optimal strategies; peer-to-peer networks; sequential two-stage design; time-dependent iterative algorithms; time-varying optimal coordinated information load balancing problem; time-varying quadratic semistabilization problem; Convergence; Dynamic programming; Indexes; Load management; Optimal control; Search problems; Linear systems; network analysis and control; optimal control; optimization algorithms; time-varying systems;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2012.2211445