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Robert T. Buche, Publications and Recent Talks

Journal Papers

Preprints:

Power control in a wireless queueing system with delay: an application of numerical methods for nonlinear stochastic systems. (with Yipeng Yang and Vahid Ramezani). Submitted.

Heavy traffic limit theorems for a wireless network model incorporating long range dependence and heavy tails: a multiscale phenomenon. (with Arka Ghosh and Vladas Pipiras). To be submitted.

Published:

Adaptive Optimization of Least-Squares Tracking Algorithms: With Applications to Adaptive Antenna Arrays for  Randomly Time-Varying Mobile Communications Systems, with Harold J. Kushner, IEEE Transactions on Automatic Control, Vol. 50, no. 11, pp. 1749-1759.

(with Professor Harold J. Kushner) Control of Mobile Communication Systems with Time-Varying Channels via Stability Methods. IEEE Transactions on Automatic Control, Vol. 49, No. 11, November, 2004, pp 1954 - 1962.

(with Professor Harold J. Kushner) Control of Mobile Communications with Time-Varying Channels in Heavy Traffic. IEEE Transactions on Automatic Control, Vol. 47, No. 6, June 2002.

(with Professor Harold J. Kushner) Rate of Convergence for Constrained Stochastic Approximation Algorithms. SIAM Journal on Control and Optimization, Vol. 40, No. 4, pp. 1011-1041.

(with Professor Harold J. Kushner) Stochastic Approximation and User Adaptation in a Competitive Resource Sharing System. IEEE Transactions on Automatic Control, Vol. 45, No. 5, May 2000, pp. 844-853.


Conference Papers

IEEE Conference on Decision and Control, New Orleans, LA, December 2007 (submitted). Heavy Traffic Limits in a Wireless Queueing System with Long Range Dependence, with Arka Ghosh and Vladas Pipiras.

IEEE Conference on Decision and Control, San Deigo, CA, December 2006. Power control for mobile communications with delayed state information in heavy traffic, with Yipeng Yang, Harry Chang, and Vahid Ramezani.

MILCOM, Washington D.C., October 2006. Power control for a wireless queueing system with delayed state information: heavy traffic modeling and numerical analysis, with Vahid Ramezani, Harry Chang, Yipeng Yang.

IMA Proceedings, Wireless Networks. Heavy Traffic Methods in Wireless Systems: Towards Modeling Heavy Tails and Long Range Dependence, with Arka Ghosh, Vladas Pipiras, Jim Zhang,   To appear in the  proceedings of an Institute for Mathematics and its Applications (IMA) workshop, June 2005, to be published by Springer, 2006.

Army Conference on Applied Statistics, Monterey, CA, October 2005. Towards Asymptotic Limits for Wireless Queuing Systems under Long Range Dependence and Heavy Tails, with Jim X. Zhang.

ACC, Portland, Oregon, June 2005. 1. Stochastic Approximation for Adapting Weighted Least-Squares Algorithms: Applications in Wireless Adaptive Antenna Arrays with Time-Varying Channels and Periodically Blind Signaling, 2. (with Chuan Lin) Heavy Traffic Control Policies for Wireless Systems with Time-Varying Channels.

IEEE Conference on Decision and Control, Maui, Hawaii, December 2003. 1. (with Professor Harold J. Kushner) Control of Mobile Communications with Randomly-Varying Channels via Stability Methods. (Invited Paper). 2. (with Professor Harold J. Kushner) Adaptive Optimization of Tracking Algorithms: Applications to Adaptive Antenna Arrays for Randomly-Varying Mobile Communications.

IEEE International Conference on Communications, New York, NY, April 2002. (with Professor Harold J. Kushner) Stability and Control of Mobile Communication Systems with Time-Varying Channels.

IEEE Conference on Decision and Control, Phoenix, AZ, December 1999. (with Professor Harold J. Kushner) Stochastic Approximation: Rate of Convergence for Constrained Problems and Applications to Lagrangian Algorithms.

IEEE Conference on Decision and Control, Tampa, FL, December 1998. (with Professor Harold J. Kushner) Stochastic Approximation and User Adaptation in a Competitive Resource Sharing Problem.

Seventh Vilnius International Conference on Mathematics and Statistics,Vilnius, Lithuania, July 1998. (with Professor Harold J. Kushner) Asynchronous Stochastic Approximation and Adaptation in a Competitive System.AAA


Ph.D. Thesis

Stochastic Approximation: Rate of Convergence for Constrained Algorithms; Asynchronous Algorithms and Analysis of a Competitive Resource Sharing Problem.
Division of Applied Mathematics, Brown University, May 2000.

 


Recent Conferences

Heavy traffic limit theorems and related results for a wireless system with long range dependence and heavy tails, (with A. Ghosh, and V. Pipiras), Stochastic Networks Conference, Paris, France, June 2008.

Heavy traffic scaling and limit models under long range dependence: a wireless example. 32nd Conference on Stochastic Processes and their Applications, Urbana-Champaign, IL, August 2007.

Power control for mobile communicatons with delayed state information in heavy traffic. IEEE Conference on Decision and Control, San Diego, CA , December 2006.

[Upcoming] Heavy traffic limits in a wireless queueing model with long rang dependence. IEEE Conference on Decision and Control, New Orlean, LA, December 2007.